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  • 标题:Housing choice, outcomes, and neighborhood characteristics in housing programs for individuals with a serious mental illness: analysis of a phoenix survey of individuals with serious mental illness.
  • 作者:Mushkatel, Alvin ; Guhathakurta, Subhrajit ; Thompson, Jackie
  • 期刊名称:Public Administration Quarterly
  • 印刷版ISSN:0734-9149
  • 出版年度:2009
  • 期号:December
  • 语种:English
  • 出版社:Southern Public Administration Education Foundation, Inc.
  • 摘要:While research has recently documented the importance of housing assistance to individuals with a serious mental illness (SMI), research is inconclusive as to the relative importance of different types of housing assistance for individuals with serious mental illnesses in relation to their well-being or integration into the community. More specifically, the relative importance of individual characteristics, including their socio-demographic factors, differently structured housing programs, and the environmental context (neighborhood level variables) to client success is not well researched. Yet, these factors are of critical importance in further understanding how various programs, including housing, can be designed and implemented to help individuals with serious mental illnesses integrate into the community (mainstreamed). For example, are there particular client socio-economic characteristics which interact either positively or negatively and allow for more successful housing program placements? Are there neighborhood characteristics, such as a concentration of residents receiving other types of assisted housing subsidies in a neighborhood, and are these concentrations associated with differential reintegration outcomes? Finally, is there an interactive effect among these three types of factors (individual, neighborhood context, and type of housing program), and if so, what, and under what conditions?
  • 关键词:Dwellings;Homeless persons;Housing;Medical research;Medicine, Experimental;Mental disorders;Mental illness;Mentally ill;Mentally ill persons;Quality of life

Housing choice, outcomes, and neighborhood characteristics in housing programs for individuals with a serious mental illness: analysis of a phoenix survey of individuals with serious mental illness.


Mushkatel, Alvin ; Guhathakurta, Subhrajit ; Thompson, Jackie 等


INTRODUCTION

While research has recently documented the importance of housing assistance to individuals with a serious mental illness (SMI), research is inconclusive as to the relative importance of different types of housing assistance for individuals with serious mental illnesses in relation to their well-being or integration into the community. More specifically, the relative importance of individual characteristics, including their socio-demographic factors, differently structured housing programs, and the environmental context (neighborhood level variables) to client success is not well researched. Yet, these factors are of critical importance in further understanding how various programs, including housing, can be designed and implemented to help individuals with serious mental illnesses integrate into the community (mainstreamed). For example, are there particular client socio-economic characteristics which interact either positively or negatively and allow for more successful housing program placements? Are there neighborhood characteristics, such as a concentration of residents receiving other types of assisted housing subsidies in a neighborhood, and are these concentrations associated with differential reintegration outcomes? Finally, is there an interactive effect among these three types of factors (individual, neighborhood context, and type of housing program), and if so, what, and under what conditions?

BACKGROUND

The 1970s brought about the deinstitutionalization era, which was a movement to discharge individuals with serious mental illnesses from state mental health facilities in order to reintegrate them into mainstream society. The shift in how individuals with a serious mental illness were treated is highlighted by the fact that in 1955 there were 559,000 individuals in state hospitals. Despite the fact that the nation's population increased by over 100 million from 1955 to 1998, there were only just over 57,000 individuals in state hospitals by the end of 1998 (Lamb and Bachrach 2001). The deinstitutionalization era also corresponded to the increased use of psychotropic medications to control the effects of severe mental illness and facilitated the discharge of this population from state hospitals. Torrey (1997) estimated that deinstitutionalization had resulted in 2.2 million severely mentally ill patients without supportive psychiatric services. The fact that individuals were more dependent on these psychotropic medications also increased their dependence on community-based supportive services.

Deinstitutionalization placed poorly understood demands on both community-based alternative care for those with a severe mental illness, as well as government-assisted housing services, therefore resulting in a lack of community-based support services to meet the needs of this population. Without the proper support, many of these individuals were out on the streets, and nationally, the homeless population began to increase. It is estimated that between one-third and one-half of the homeless were individuals with a serious mental illness (National Institute of Mental Health, 2000).

In order to more effectively utilize housing resources, the Department of Housing and Urban Development (HUD) adopted a strategy of providing housing programs that would cover the entire housing continuum of care. These programs would not only provide housing assistance to those of low and moderate income, but also to the nation's special populations, including the disabled and individuals with a serious mental illness (HUD, 1995 ) Additionally, the mental health community realized that they, too, would need to provide a continuum of mental health services in communities including case management, medication, and other services designed to provide preparation and support for those now living in the community (Fosburg, et al. 1997). In the 1980's the "continuum approach" came under criticism for not being able to meet the changing needs of individuals with a serious mental illness (Dickey, et. al., 1996). The "Supported Housing" approach, an alternative to the "continuum approach," was viewed as more effective because it provides a range of housing options with different levels of staff involvement based on the needs of the individual (Carling, 1992). Studies designed to compare these two distinct approaches produced equivocal results, suggesting that other factors may play a more significant role in predicting effective housing for individuals with a serious mental illness.

The research in this paper investigates many of these questions using data collected from a series of studies completed in Phoenix, Arizona. Before discussing these studies, the methodology employed, and the research findings, it is necessary to provide a short review of some of the research findings from the major studies in the field. This review will further focus the subject of this paper, that is, the necessity of housing for homeless individuals with a serious mental illness and the relative importance of various factors in such a program. This review is followed by a discussion of Arizona policies aimed at providing greater stability and care for this population and a brief discussion of the homeless housing programs in Phoenix. Next, an explanation of the study's methods and major findings are offered, as well as a discussion of their implications for homeless policy that addresses individuals with a serious mental illness.

THE RESEARCH ON FACTORS AFFECTING INDIVIDUALS WITH SERIOUS MENTAL ILLNESS COMMUNITY REINTEGRATION SUCCESS

One of the key findings resulting from the experience of deinstitutionalization is the critical importance of providing far more than just medications for those with serious mental illness: including a host of community based services that take into account the needs and circumstances of the patients is vital (Lamb and Bachrach, 2001). The deinstitutionalization movement was based, in part, on the belief that a community-based, smaller, and less isolated setting for care was preferential to long-stay psychiatric hospitals (Bachrach, 1996). Culhane et al. (2002) makes the argument that housing homeless individuals with severe mental illnesses is both cost effective and more humane solution to the problem than institutional housing of those with sever mental.

Despite the fact that access to services and housing has been defined as a critical component for individuals with severe mental illnesses to be reintegrated into the community, the research, which attempts to identify a preferable housing option, varies in the program characteristics that are attributed to successful reintegration into the community. Some studies claim that community-integrated living arrangements contribute to successful reintegration (Hanrahan et al. 2001), while other studies claim that group housing is the preferable method for housing individuals with severe mental illnesses (Goldfinger et al. 1999). In a similar vein, Bebout et al. (1997) results suggest that the continuum of care model, moving from supervised apartments to independent apartments, contributes to stability of housing for the formerly homeless with dual diagnosis of severe mental illness and substance abuse disorder.

Other research concludes that aggressive case management is accountable for providing stable housing (Goering et al. 1997, Lehman et al.1997). However, Clark and Rich (2003) examined the difference between a program with only case management services and one with a comprehensive housing program, including case management services for individuals with a dual diagnosis of severe mental illness and substance abuse disorder. The results indicated that the case management service program was only effective for those with low or moderate psychiatric impairment, but for those with high psychiatric impairment, only the comprehensive housing service program resulted in stable housing.

Rog (2004), in her review of the literature, concluded that the housing with supports, regardless of the specific model, results in a significant increase in housing stability for individuals with a serious mental illness. However, the results of the studies are inconclusive in identifying the preferable housing method and program characteristics that truly contribute to stable housing and successful re-integration of formerly homeless individuals with severe mental illnesses into the community.

As the understanding of the importance of adequate housing and community social services for recovery grew, the context in which these services were delivered was often overlooked. Yet, there was ample reason to hypothesize that environmental or neighborhood factors would play an important part in the success or failure of community integration for individuals with a serious mental illness. It is possible that seriously mentally ill patients who are in the community setting will be influenced by the neighborhood and the conditions surrounding their housing.

The impact environmental context can have on individuals with a serious mental illness has been recognized as an important factor but not in the context of housing programs designed for individuals with a serious mental illness. For example, Silver (2000a,b) used data from the MacArthur violence study to better understand the relationship between neighborhood context and violence among patients discharged from in-patient psychiatric clinics. He hypothesized that the lack of control variables measuring neighborhood context would explain the inconsistency of past studies that had attempted to use race to explain the likelihood of violence. His study found that when neighborhood disadvantage was not controlled for, the effect of race on predicting violence was grossly overestimated. Knowing this, it could explain why Goldfinger et al. (1999) found that "consumers who were African American or Hispanic experienced disproportionately more days homeless if--but only if they were assigned to independent housing." His study failed to consider the environmental context of the neighborhood. Swanson et al. (2002) also found that violence in the surrounding area was one predictor of violent behavior. In short, neighborhood context is shown to be an important factor when predicting behavioral outcomes of individuals who are severely mentally ill.

THE IMPORTANCE OF CONTEXT

The provision of housing for persons with a serious mental illness has become an integral element in the continuum of care. In addition, it is clear from the studies that some form of housing program (supervised living, supportive housing etc.) is associated with positive outcomes, including greater stability, higher quality of life, less likelihood of homelessness, and less use of clinical services. Yet, the importance of the environment (neighborhood context) that surrounds the housing has been largely ignored in such studies until recently. It is important to emphasize that without the knowledge of the surrounding environment, we can not attribute various behavioral outcomes to only the housing program since either the neighborhood environment, or the individual risk factors, or both may be causing the observed outcomes. Indeed, a recent paper suggests that the inconsistency of research results that observed the impact of different housing programs may be the result of the failure to account for the neighboring environment (List, 2004). Increasingly there is a recognition of the importance of examining the impact of the environmental context. For example, The National Institute of Mental Health (NIMH) identified contextual influences on mental illness and its care as a priority area for research (NIMH, 2000). It argued that both individual and contextual effects "... need to be identified and assessed to aid in designing and/or developing interventions appropriate to the needs and circumstances of specific individuals or groups suffering from mental disorder" (NIMH, 2000). To date, such research has been limited (Wong et al., 2002; Newman, 2001; Newman et al., 1994; Guhathakurta and Mushkatel, 2000, 2002).

The importance of neighborhood context was noted as early as Faris and Dunham's (1939) study examining Chicago neighborhoods to determine the prevalence of mental illness. By examining the geographic spatial distribution of psychiatric patients prior to hospitalization, they documented an association between the nature of the mental illness and the neighborhood. Those patients suffering from schizophrenia and substance abuse disorders were far more likely to live near the city center, regardless of their race. Faris and Dunham (1939) suggested that these city center neighborhoods were more likely than other neighborhoods to be characterized by disorganization and deterioration, the very conditions they felt supported social isolation confusion and other conditions associated with mental disability.

In the 1980s, a number of researchers attempted to use neighborhood contextual factors to predict psychological impairment; however, these studies resulted in mixed findings. For example, Gray et al. (1983) found no relationship between environmental context and mental well-being, but Nagy et al. (1988) discovered a relationship between urban location and productive activities. As List (2004) notes, these studies were limited by their rudimentary measures of environmental context (type of neighborhood--residential or commercial, and locale urban, suburban or rural). The nature of the neighborhood context is not well operationalized by such efforts at measurement.

More germane are the studies by Ross (2000) and Ross et al. (2000), which found neighborhood context to be an important variable in determining behavioral outcomes in the general population and depression in adults. These studies found that those who live in neighborhoods with a high percentage of poor and mother-only households display higher levels of depression than those living in areas without these characteristics. In addition, one study found that while neighborhood factors were not as important as individual factors, they still could not be disregarded because in some cases they were found to be more important than many individual factors in predicting the prevalence of schizophrenia and substance abuse disorder (Goldsmith, et al. 1998). Finally, Silver et al.'s(2002) analysis of 11,686 participants residing in 261 census tracts revealed that neighborhood disadvantage was associated with higher rates of major depression and substance abuse, while neighborhood residential mobility was associated with higher rates of schizophrenia, major depression, and substance abuse.

Neighborhood context can readily be seen as a potentially powerful factor in influencing the success or failure of various community-based programs for individuals with serious mental illnesses. For example, a national report in 2002 clearly notes that social segregation of the mentally ill hinders their recovery (Onken, et al. 2002). The goal of various independent housing programs for individuals with a serious mental illness is to place these individuals in a normalized environment. In a similar vein, HUD requires public housing units to be properly distributed within an area and among the population (HUD 1999). Yet, despite goals for a balanced spatial distribution of such housing, Guhathakurta and Mushkatel (2000) found that HUD's housing programs (including Section 8 vouchers) and housing for individuals with a serious mental illness were very concentrated in the city of Phoenix. For example, 31 percent of the Section 8 housing was distributed among only 10 census tracts, and 15 census tracts contain a little more than 50 percent of all city-administered subsidized housing (ibid. :525). These tracts were found to have a higher concentration of minorities, fewer college-educated persons, lower median household incomes, and a higher percentage of renters than is the average for the city. Indeed, these 15 tracts had more than twice as many non-whites and fewer than one-half the average number of college-educated than the city average. Finally, these tracts were concentrated in the inner-city areas of Phoenix.

In comparing the Shelter Plus Care housing (S+C SMI housing- independent living arrangements) to these city run programs, Guhathakurta and Mushkatel (2000) found a similar spatial concentration of the SMI housing, albeit slightly less concentrated than the City/HUD programs. Just 10 tracts in the city accounted for 29 percent of all S+C housing in the metropolitan area (ibid. :529). Based on their regression and binomial logit analysis, they find that the traditional city-administered housing programs and the S+C for individuals with a serious mental illness tend to be located in similar neighborhoods that are highly associated with the number of non-whites in the tract. They conclude that assisted housing is concentrated in similar locations and that the presence of one type of this housing is a strong predictor of the presence of the other. Hence, current policy seems to result in increasing concentrations of stigmatized populations in the city centers.

It is important to note, housing location in relation to support services is also important to account for when considering environmental context. Wong and Solomon (2002) note that access to services is critical for individuals with a serious mental illness if they are to maintain housing within a normalized community. This is an additional factor that must be considered when examining environmental context.

These findings are disheartening in several respects. First, a major portion of the program logic underlying independent living arrangements for individuals with a serious mental illness is based on the understanding of placing them in a normalized environment. However, even the limited analysis by Guhathakurta and Mushkatel (2000) indicates that the neighborhoods in Phoenix where such housing is located are far from average, and that they are in areas where a large number of households receive some form of housing assistance. Second, because these neighborhoods are disadvantaged, it is possible that they are also characterized by higher crime rates, which would suggest that individuals with a serious mental illness are more likely to become victims of such crimes (Brekke et al. 2001; Silver, 2000a, b). Finally, the research in this area raises more questions than it answers. We address some important gaps in the literature by analyzing the relative importance of socio-demographic, neighborhood context and housing program factors leading to successful reintegration of individuals with a serious mental illness to the community. Before addressing these important issues, a discussion of the Phoenix and Arizona policy history for individuals with a serious mental illness is necessary, along with a discussion of the current study.

THE PHOENIX INDIVIDUALS WITH SERIOUS MENTAL ILLNESS CONTEXT

In 1988 the Maricopa Association of Governments (MAG) created a Homeless Task Force, which produced a report on conditions that would alleviate the homeless crisis in the county and return these individuals to self-sufficiency (MAG, 1989). This report was followed by another report in 1998 and reports from the State Homeless Coordination Office of the Arizona Department of Economic Security (DES), which estimated the number of homeless individuals with a serious mental illness and assessed their needs.

As a result of court settlements (Arnold versus Arizona Department of Health Services, 160 Ariz. 1989,) Maricopa County and the Arizona Department of Health Services through a private entity are now the principal providers of housing for individuals with a serious mental illness. In fact, the court established a monitor to oversee the provision of services to individuals with a serious mental illness and to provide frequent reports to assure adequate levels of services were being provided to these individuals. Partially due to the Arnold case, a comprehensive study was initiated in 1998, it found that to establish a comprehensive mental health system within the county would cost around $293 million. While the Arizona legislature subsequently allocated considerable funding to meet this goal, the State has still not resolved its problems in providing adequate services to the individuals with a serious mental illness.

In 2002, 1000 formerly homeless individuals were housed using funds from the Stewart McKinney Act, and another 1000 formerly homeless persons diagnosed with a serious mental illness had moved from McKinney funded housing to Section 8 permanent housing (DES, 2002). In 2003, the Arizona Department of Health Services' Division of Behavioral Health produced its Strategic Plan for Housing for Maricopa County for Individuals with a Serious Mental Illness. The report notes that in the last eight years the resources for such housing have doubled, and the agency restates its commitment to a residential continuum in which community-based services are provided throughout a range of residential settings that vary by the amount of independent living arrangements and services provided (ADHS, 2003). The report also notes that Supported Housing (independent housing) was developed to afford individuals with a serious mental illness a choice in their housing situation, while providing necessary community-based services. The plan also states that, to date, there has been no research rigorously comparing the outcomes of varying housing approaches. These independent or supported housing approaches were the focus of the SAMHSA/CMHS Housing Initiative Study, a nation-wide study that started in 1997-98 and in which Arizona participated and provided a portion of the data utilized in this research.

THE SAMHSA/CMHS HOUSING INITIATIVE STUDY

Client data from individuals with a serious mental illness was collected as part of a larger multi-site research project funded by HUD and the Substance Abuse and Mental Health Services Administration (SAMHSA). The Arizona Department of Health Services' Division of Behavioral Health directed the Community Mental Health Study (CMHS) and assembled three multidisciplinary research teams to implement the evaluation using several different methods. One team conducted an evaluation of two housing programs designed for individuals with a serious mental illness. The programs varied by the degree of independence they had. The Supported Housing (SH) program allows far more choice in housing situation and services than does the other Supervised Independent Living (SIL) program.

A total of 185 individuals participated in the study and were interviewed within two weeks of moving into their housing (baseline), and again at three, six and tweleve months (Community Rehabilitation Division, 2003). The assignment or referral to either "... the SH or SIL program was made by the consumer and the clinical team lead by the Regional Behavioral Health Agency case manager (ibid. : 7). Unfortunately, random assignment of participants proved to be impossible and the number of participants in each program is strongly over-weighted to the SH program. In addition, it is important to note the shift to a for-profit RBHA, along with other important changes that took place shortly after the study started (ibid. :8). Additionally an 18-month interview was added to the protocol after the study began. The data from several of these points in time is used in this paper to examine the interaction between individual characteristics, different housing programs, and neighborhood factors in explaining the success of individuals with a serious mental illness in integrating into the community.

DATA AND METHOD

This study of housing outcomes of SMI population in Phoenix is based on a survey of 185 severely mentally ill and homeless individuals who were counseled and housed under two different SMI housing programs between (month) 2000 and (month) 2001 in Maricopa County. The respondents who participated in the survey were contacted at the time they were initially housed and after each 3-month interval up to 18 months since the initial contact if they continued to be in one of the SMI housing programs. This study is based on a subset of the entire data as it extracts information for only those respondents who were initially housed in the city of Phoenix. In addition, the study only uses the surveys conducted at baseline, 6-month, and at 12-month intervals. The data for Phoenix consisted of 136 initial participants. This number declined to 113 after 6 months and further to 108 after 12 months due to participants dropping out of the programs. The gender, racial, and age composition of the participants at baseline, after 6 months and after 12-months are provided in Table 1.

As may be expected, the respondents have a range of physical and psychological disorders that are associated with both legal and illegal drug use. A significant majority of the interviews at baseline (42.2%) were conducted in substance abuse treatment program facilities. Another 35.6 percent of the interviews at that time were conducted at mental health program facilities. Also, almost 90 percent of the respondents had been hospitalized at least once during their lifetime. About three-quarters of the interviewees have received health benefits from Medicare and/or Medicaid programs. A typical Phoenix participant in the study had initially availed of mental health services in the early 20s and subsequently been hospitalized for emotional and psychological disorders about four times. Few admitted to current drug use (about 5% used cocaine or crack in the current month and only 6% had some drug problem).

The overall purpose of the multi-site study was to examine the effectiveness of various types of housing for the SMI population. Specifically, it was designed to evaluate whether the supported housing program provided better housing outcomes for the SMI population than other comparable programs. An extensive questionnaire was used to collect information from the respondents. The respondents were asked questions related to their residential history, housing satisfaction, livelihood, health and functioning, quality of social support, choice and empowerment, among others. These interviews were conducted "face to face" at the interviewees housing site or close to it (such as in the office of the apartment complex). The random allocation of housing failed due to several extenuating circumstances resulting in a significant majority of the respondents being housed in supported housing. Less than 20 percent of them were housed through the comparative housing program.

The focus of this paper is different from the multi-site study. In this paper we seek to determine the relative importance of individual and neighborhood factors in determining housing outcomes for the SMI population. We hypothesize that the quality of the neighborhood in terms of housing quality, demographics, incidence of crime, and accessibility, among others, are important factors determining housing satisfaction among the study participants after controlling for the individual characteristics of the participants. The study also examines the relative influence of each of these neighborhood characteristics in determining housing outcomes of SMI population in Phoenix. Finally, the paper discusses the policy implications for better designing housing programs for the SMI population.

A variety of sources were tapped to access information on neighborhood context that were subsequently integrated with the data from SMI housing survey discussed earlier. Information about household and housing characteristics in the census tracts were SMI respondents were housed was obtained from 2000 census of population and housing. The transit accessibility of the neighborhoods was calculated from the distance of tract centroids to the nearest bus route. Data on crime incidence were obtained from the City of Phoenix Police Department at a finer resolution than the census tract. This information was abstracted to the level of the census tract with the help of spatial matching performed in Arcview GIS software package. In addition, information on spatial concentrations of various assisted and supported housing within the tracts was also obtained from several sources. Table 2 provides a listing of the most important variables used in this study together with their sources.

The SMI housing provided for the survey participants were located in 50 census tracts out of a total of 327 tracts (15%) within the city of Phoenix. Among the tracts that included SMI housing, only 12 census tracts housed 52 percent of the respondents. Figure 1 shows the census tracts that include one or more housing as provided to the participants of this study. Table 3 provides some demographic and housing characteristics of the 12 census tracts where majority of the participants have been housed.

[FIGURE 1 OMITTED]

The analysis of the SMI population's perceived quality of life in relation to their individual characteristics and the characteristics of the neighborhood in which they were housed follows a two-pronged approach. First, the strength of association between perception of quality of life of the respondents and other outcome measures such as housing satisfaction, empowerment, and service need are determined through non-parametric statistics. These associations are also examined after controlling for a number of individual and neighborhood attributes to see whether such attributes mediate the association between quality of life and the other three outcome variables. Second, the unique contribution of the various attribute variables (neighborhood and individual) after controlling for other explanatory variables is established through ordinal regression analysis. The generic form of this model is provided below:

Link ([y.sub.ij]) = [[theta].sub.j] - [[[beta].sub.1] [x.sub.i1] + ... [[beta].sub.n][x.sub.in]]

Where: Link([y.sub.ij]) = log(-log(1 - y)) this is the complementary log-log (extreme value) function

[[theta].sub.j] = the threshold for the jth category

[[beta].sub.1] .. [[beta].sub.n] = regression coefficients

[x.sub.i1] .. [x.sub.ip] = values of the predictors for the ith case

The complementary log-log link function was determined to be the most appropriate given the responses to "feeling of life in general" were skewed towards the higher values. The interpretation of the model is based upon several assumptions. First, the model should suggest a latent continuous variable, which is discretized by the j ordinal categories. Second, the constants in the model are only determined by the category's probability of being predicted (without the contribution of the independent variables). Third, the prediction part of the model depends only on the predictors. The second and third assumptions guarantee that the results will be a set of parallel planes (or lines), one for each category of the outcome variable. The frequencies and marginal percentages of all the outcome variables are presented in Table 4.

ANALYSIS

Among the various outcomes-related questions that were asked of SMI respondents in the survey, the perception of their overall quality of life is perhaps the most robust. This question was asked twice during the survey; once at the beginning of all other perceptual questions and again at the end of the survey. The tests of association including chi square and sommers'd are highly significant suggesting strong relationship between the two answers on a similar question as may be expected. However, the strength of the relationship is marginally higher than 60% (tau-b and somers' d) indicating that the two responses are less than perfectly aligned. Further tests showed that the responses received at the end of the survey had higher variation and provided a better outcome measure of "quality of life" than the initial response.

The analysis of the determinants of quality of life of the surveyed SMI population shows that overall housing satisfaction, feeling of empowerment and overall need for service are all significant variables explaining quality of life (Table 5). Among the three indicators noted, the feeling of empowerment had the strongest and the most significant impact on respondents' quality of life. The somers' d statistic (.567) suggests a 57 percent reduction in error when predicting quality of life after taking overall feeling of empowerment into consideration. The corresponding reduction in error for predicting quality of life accounting for the other two explanatory variables, housing satisfaction and service need, are 19 percent and 17 percent respectively. Also of note is the expected negative association between quality of life and service need. That is, respondents who indicated higher need for service also scored low on their assessment of "quality of life".

While it is clear that quality of life is affected by the respondents' attitude towards their housing, feeling of empowerment, and their need for service, this relationship is mediated by a number of individual and neighborhood attributes. We control for several of such attributes to determine which among them strengthen or weaken the initial associations between quality of life and the three explanatory variables described earlier. The type of housing program, supervised independent living (SIL) or supported housing (SH), is an important policy variable that was factored in to the relationship between housing satisfaction and quality of life. As shown in Table 5, this relationship is strong and significant for individuals in SILs, while for the respondents in the SH program this relationship was not significant. In contrast, the SMI population in supported housing showed a stronger association between their feeling of empowerment as well as their service need with their perception of quality of life. The corresponding statistics for those in supervised independent living situations did not have a high level of significance. Hence it can be concluded that survey respondents in supported housing did not associate quality of life with their housing satisfaction but with their feeling of empowerment. However, if they had high service needs, their perception of quality of life was low.

Four neighborhood attribute variables were also tested to determine their effect on the relationship between quality of life and the explanatory variables in Table 5. These are; 1) concentration of subsidized housing of any type in census tract; 2) median household income in census tract; 3) the incidence of drug related crimes in the tract; and 4) housing quality in the census tract as determined through a survey conducted between June and August, 2004. Curiously, SMI population housed in neighborhoods with high or somewhat high concentrations of other forms of subsidized housing showed a greater propensity to associate housing satisfaction, overall empowerment, and service need with quality of life. Those living in census tracts with low and somewhat low levels of subsidized housing concentrations did not associate quality of life with any of these three explanatory variables. This suggests that the perception of quality of life is sensitive to the individuals' sentiments about their own condition when they are living in census tracts with moderate to high concentrations of subsidized housing. This is also reflected in the census tracts with low or somewhat low median household incomes. Those living in neighborhoods with higher median incomes did not associate their quality of life with the attitudinal variables reported here.

The contribution of incidence of drug crimes in the census tract is significant in predicting the association between quality of life and the explanatory variables discussed. Except for the tracts with low levels of drug crimes, all other levels had some impact on one or more of the explanatory variables and their ability to predict quality of life. Curiously, there is a negative relationship between quality of life and housing satisfaction in tracts with somewhat high levels of drug crime. This is perhaps an aberration given that this relationship is significant and positive for both high and somewhat low levels of drug crimes in the census tract. The relationship between quality of life and overall empowerment, as well as, between quality of life and service need is as expected for somewhat high levels of drug crimes in the neighborhood. That is, in these neighborhoods, SMI populations indicating high overall empowerment also registered highly on quality of life scale. On the other hand high service need reduced their quality of life.

Housing quality had an expected impact on the relationship between quality of life and housing satisfaction. At high levels of housing satisfaction, this relationship is significant and positive but at lower levels of housing quality the association between quality of life and housing satisfaction is not significant. Although, overall feeling of empowerment does contribute highly to the respondents' quality of life, this relationship is significant only at medium levels of housing quality in tract. At low and high levels of housing quality, the magnitude of association between the two outcome variables is high and positive but not significant. Service need is negatively associated with quality of life in census tracts with high levels of housing quality. However, this relationship is less apparent in census tracts with medium and low levels of housing quality.

In addition individual level variables were examined and found to be statistically insignificant in mediating the relationship between quality of life and other explanatory variables than did neighborhood level variables. Gender did not feature as a significant variable as both men and women had similar low levels significance in predicting any of these relationships tested. Similarly, Hispanics and non-Hispanics had no impact on the association between quality of life and the three explanatory variables. However, racial differences can be detected when Whites and non-Whites are separated out. SMI respondents who are White showed a strong propensity to relate quality of life with housing satisfaction and overall empowerment, but not service need. For non-Whites, none of these relationships was significant.

The other two important individual attributes accounted for were personal health, and whether the respondent reported being victimized during the past six months. SMI individuals who rated their health as excellent, fair, or poor, did not significantly attribute quality of life with housing satisfaction, overall empowerment , or service need (except for some weak relationships for those with poor health). In contrast, those who were victimized attributed their quality of life significantly to their overall empowerment. The non-victims did not make any significant association between empowerment and quality of life.

From this analysis of nonparametric statistics of association between quality of life, housing satisfaction, overall empowerment and service need a number of significant conclusions can be drawn. First, the program types have a significant role to play in predicting quality of life and its relationship to the variables included in this analysis. Second, neighborhood variables such as median household incomes, concentrations of other subsidized housing, and housing quality also contribute to enhancing the relationship between quality of life, housing quality, empowerment, and service need. Finally, individual variables are less relevant in mediating the relationship between housing quality and the three other explanatory variables. Given the impact of the neighborhood and the program type in this analysis, we can safely conclude that they are the key attributes of a well designed policy for successfully housing the severely mentally ill population.

Ordinal regression results presented in Table 6 provide additional evidence of the strength of contextual variables in explaining respondents "feeling about life in general". The fit of the model is fairly good as indicated by the change in chi-square of the final model over intercept only model and the pseudo R-square values presented in Table 6. More importantly, the prediction of this model for the two categories "good" and "mixed" of the dependent variable "feeling about life in general" is 80 percent and 64 percent respectively. The prediction of the lowest category of "bad" is, however, lower at 46 percent. The coefficients of the explanatory variables do not present an intuitive explanation similar to OLS but the direction and significance of these variables are important indicators to note.

The reduced form model presented in this study does not include several of the individual variables dealing with age, gender, race, and ethnicity because these variables were not significant enough in explaining "feeling about life in general". The only self-perception variables that were significant were the respondents' feeling of overall empowerment and their attitude about their personal health. Their perception about their own health has an expected impact on their overall feeling of "good", "mixed" or "bad", that is, better health is associated with higher levels of quality of life holding all else constant. However, the attitude towards empowerment is more complex. Respondents who felt somewhat empowered seem to also have a higher propensity for a lowered sense of feeling "good" about their quality of life, ceteris paribus. This relationship disappears for those who have stronger feeling of overall empowerment.

The variables representing the neighborhood contextual attributes of the respondents are more numerous in this model. One significant result is that in the census tracts with lowest concentrations of existing subsidized housing leads to higher likelihood of low satisfaction with quality of life, holding all else constant. This relationship is, however, not significant at "somewhat low", "somewhat high" concentrations of subsidized housing. Also, those respondents housed in the supervised independent living program housing seemed to have a lower propensity to feel good about their "life in general". This suggest that the supported housing programs are probably better able to provide for the housing needs of the SMI/Homeless population in Phoenix when compared to the supervised independent living arrangement. The other neighborhood quality variables such as percent of city's median rent, percent unemployed in census tract, percent of African Americans and percent of detached single-family homes are also significant. Higher proportions of unemployed, single family detached homes and African Americans increase the likelihood of lower feelings about quality of life. The strong negative relationship of respondents' quality of life at low and somewhat low levels of housing satisfaction with quality of life is also a significant finding. Higher likelihood of being low or somewhat low on levels of housing satisfaction is associated with lower likelihood of feeling "good" about "life in general". This reinforces the significance and direction of the relationship between housing satisfaction and quality of life found earlier in non parametric tests.

The overarching conclusion of the analyses of nonparametric statistics and ordinal regression is that context matters. Several contextual variables measuring attributes of the neighborhood (defined by a census tract) are significant and strong predictors of SMI respondents' "feeling of life in general". Notable findings with special significance for policy are the contributions of two variables, program type and concentration of subsidized housing in census tract in explaining respondents' quality of life. Clearly, supervised independent living arrangements fared poorly when compared to the supported housing program. There is evidence to suggest that lowering concentrations of subsidized housing in a neighborhood may have a threshold beyond which satisfaction levels are lowered rather than elevated. This is perhaps an artifact of neighborhoods with low levels of subsidized housing concentrations being also associated with low levels of social contact and accessibility. Similarly, neighborhoods (census tracts) with high levels of single-family detached housing also contributed to low levels of satisfaction with quality of life, all else being constant. Therefore the picture that appears from this analyses is a complex one, in which, the preferred neighborhoods have higher rents, lower unemployment rates, and lower concentrations of racial minorities (especially African Americans) but also has fewer single family detached homes and moderate concentrations of subsidized housing. Further research is necessary to determine the observed threshold effects in these contextual variables.

CONCLUSION

The analysis has confirmed our initial hypothesis concerning the importance of neighborhood contextual variables in understanding SMI clients' perceptions of their quality of life. Not only has the importance of the different housing programs impacts on SMI perceived quality of life been demonstrated, but in several instances these programmatic variables seem to interact with neighborhood factors and feelings of empowerment, service need, and housing satisfaction to either increase or decrease clients' perceived quality of life. Individual level factors have been shown to have much lower levels of impact in mediating the relationship between perceived quality of life and the other explanatory variables, including housing satisfaction, empowerment and service need, than did neighborhood variables. Two individual level factors that did emerge as having some importance were whether a respondent had been the victim of a crime in the last six months, and their own perceived health.

The ordinal regression performed clearly indicates that housing program impacts clients' perceived quality of life with supported housing clients having higher satisfaction with their quality of life than do participants in the supervised independent living program. In addition, the concentration of assisted housing in a tract is a significant neighborhood factor associated with perceived quality of life. However, the direction of some of these neighborhood contextual effects is not in the hypothesized direction. For example, lower concentrations of subsidized housing in an area are associated with lower perceptions of quality of life among respondents.

The key findings from this study for policy-makers, however is that housing satisfaction, and the neighborhood contextual variables associated with it, are also associated with higher perceived quality of life. Furthermore, program type and concentration of subsidized housing are notable factors in explaining respondents' perceived quality of life. There is evidence in the data that there may be a threshold effect with regard to lower levels of assisted housing concentrations below which satisfaction with quality of life is actually lowered. We have suggested that this may either be a result of lowered access to needed services in such areas or increased social isolation in these neighborhoods. These findings suggest that policies designed to house the SMI population in the community can be better designed than they are currently. When implemented, such continuum of care policies must take neighborhood factors into consideration as clients and program implementers select housing. Indeed, these factors appear to be far more important than most individual factors in explaining the SMI's perceived quality of life. Additionally, some neighborhood factors were found to be important only in the more independent living supported housing program, and not in the SIL program. Hence, the selection of housing location in neighborhoods is particularly critical for recipients of supported housing. Our analysis strongly suggests that current practices can be improved with additional knowledge of how these neighborhood factors interact with programmatic and individual factors. It also suggests that policies not accounting for such neighborhood factors are far more likely to fail than those that do.

ACKNOWLEDGEMENTS

This study was funded in part by a cooperative agreement from the U.S. Department of Health and Human Service, Substance Abuse and Mental Health Service Administration, and the Center for Mental Health Services (grant no. 2 UIE52060-02). Additional funding for this research was provided by the Neighborhood Service Administration of the City of Phoenix.

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ALVIN MUSHKATEL

SUBHRAJIT GUHATHAKURTA

JACKIE THOMPSON

KATHY THOMAS

Arizona State University

MICHAEL FRANCZAK

Executive Vice President Marc Center
Table 1
Age, Gender, Race, and Ethnicity of the SMI survey
Participants

                       Baseline       6-Month        12-Month

Percent Female         38.5%          36.3%          38.9%
Percent White          67.4%          69.9%          72.2%
Percent Hispanic       15.6%          15.0%          13.9%
Median Age             44             44.5           45

Table 2
Sources of Variables Used in this Study

Variables                            Source
Feeling about Life in General        SAMSHA/CMHS SMI survey
Housing Satisfaction                 SAMSHA/CMHS SMI survey
Overall Empowerment                  Aggregated from responses in
                                       SAMSHA/CMHS SMI survey
Service Need                         Aggregated from responses in
                                       SAMSHA/CMHS SMI survey
Program type                         SAMSHA/CMHS SMI survey
Health                               SAMSHA/CMHS SMI survey
Victimization                        SAMSHA/CMHS SMI survey
Gender                               SAMSHA/CMHS SMI survey
Race                                 SAMSHA/CMHS SMI survey
Ethnicity                            SAMSHA/CMHS SMI survey
Concentration of subsidized          Guhathakurta and Mushkatel 2000,
  housing in tract                     2002
Median household income of           Census of Population and Housing
  tract                                2000
Drug Crimes in tract                 City of Phoenix Police Department
Percent single-family detached       Census of Population and Housing
  housing                              2000
Median rent of tract as percent      Calculated from Census of
  of city's median rent                Population and Housing 2000
Median household income in           Calculated from Census of
  tract as percent of city's           Population and Housing 2000
  median household income
2004 Housing Quality                 Calculated from City of Phoenix
                                       Housing Quality Survey 2004

Table 3
Characteristics of 12 Census Tracts with the Highest
Concentrations of SMI Respondents

Census         SMI      Cum %    Med age    % collge       med
tract       resp *                             educ    houshld
                                                           inc

1043            10        7.4       32.7       19.8      35165
1091             8       13.3       26.3        9.7      31055
1108             8       19.3       29.7       17.3      30947
1072.01          7       24.4       23.1        6.7      21068
1055             6       28.9         26       23.8      28682
1086.02          5       32.6       29.3       11.5      26476
1090             5       36.3       24.2        6.3      24394
1111             5       40.0         38       37.5      45893
1045.01          4       43.0       26.2        7.4      30938
1086.01          4       45.9       25.9        8.3      24412
1089.02          4       48.9       31.7       19.7      30841
1109             4    51.9 100      35.4       16.1      28438
Phx            135                  30.8       22.7      41207
City

Census     % White     % unpd     % rent            %
tract                                       singlefam
                                               il det

1043          83.2        6.1       49.6         38.6
1091          49.1        8.9       31.9         75.9
1108          61.2        5.1       56.0         33.3
1072.01       60.7       19.8       81.9          6.0
1055          66.5        6.2       88.4          7.0
1086.02       57.2        6.5       74.2         27.2
1090          45.7        8.5       81.9         12.1
1111          87.9        4.6       34.4         67.0
1045.01       63.6        4.8       70.9         24.3
1086.01       47.9        9.5       78.1         16.7
1089.02       66.8        4.4       64.8         27.7
1109          69.9        7.5       67.9         31.6
Phx           71.1        3.7       39.3         57.6
City

*  Data from baseline survey

Table 4
Marginal Percentages of the Outcome and Proximal
Variables at 12-Month Survey_

                                      Value                  Marginal
Variables                             labels           N     Percentage

Feeling about life in general in      bad              13     12.6%
three categories
                                      mixed            44     42.7%
                                      good             46     44.7%
Program Type                          SIL              15     14.6%
                                      SH               88     85.4%
Tract concentrations of subsidized    Low              27     26.2%
housing in groups
                                      Somewhat low     20     19.4%
                                      Somewhat high    25     24.3%
                                      High             31     30.1%
recoded housing satisfaction into     bad              13     12.6%
three variables
                                      mixed            18     17.5%
                                      good             72     69.9%
Overall psychological                 somewhat         5      4.9%
empowerment                           low
                                      somewhat high    95     92.2%
                                      high             3      2.9%
Health                                Excellent        32     31.1%
                                      good             31     30.1%
                                      poor             40     38.8%
Valid (for all above)                                  103    100.0%
Missing (for all above)                                5
Housing Quality                       High             22     20.4%
                                      Medium           26     24.1%
                                      Low              26     24.1%
                                      Missing          34     31.5%
Total                                                  108

Table 5
Strength of Association Between "Feeling about Life in
General" and other Outcome Variables

                                   Housing          Overall
                                   Satisfaction     Empowerment

Control Variables      None         0.195 *         0.567 **
Program type           SIL          0.455 *
                       SH           0.166           0.701 **
Conc. Of subsidized    Low          0.215           0.647
housing in tract       Somewha      0.054           0.895
                       t low
                       Somewha      0.410 *         --
                       t high
                       High         0.113           0.669 *
Median household       Low          0.503 **        0.185
income of tract        Somewha      0.180           0.659 *
                       t Low
                       Somewha      0.212           0.944
                       t High
                       High        -0.132           0.783
Health                 Excellent    0.188           0.446
                       fair         0.173           0.935
                       poor         0.238 (#)       0.490 (#)
Victimization          Yes          0.168           0.754 *
                       No           0.236           0.348
Drug Crimes in         low          0.237           0.273
tract                  Somewha      0.366 *         0.615 (#)
                       t Low
                       Somewha     -0.407 *         0.559 (#)
                       t High
                       High         0.495 *         0.964
Housing Quality        High         0.354 *         0.575
(2004 survey)          Medium       0.138           0.804 *
                       Low          0.207           0.920

                       Service
                       Need

Control Variables      -0.171 *
Program type           -0.086
                       -0.225 **
Conc. Of subsidized    -0.164
housing in tract       -0.120

                       0.013

                       -0.333 *
Median household       -0.076
income of tract        -0.320 **

                       -0.109

                       -0.126 (#)
Health                 -0.166
                       -0.210
                       -0.051
Victimization          -0.107
                       -0.256 (#)
Drug Crimes in         -0.099
tract                  -0.038

                       -0.587 **

                       -0.093
Housing Quality        -0.251 *
(2004 survey)          -0.120
                       -0.099

Directional Somers'd: Dependent "Feeling about Life in General
"Significance levels indicated by: ** < .01; * <.05; (#) < .1

Table 6
Parameter Estimates from Ordinal Regression Analysis

                                      Estimate    Std.     Wald
                                                 Error

Threshold    Quality of life--bad      -5.651    2.077    7.401
             Quality of life--mixed    -2.759    1.963    1.977

             Median rent as % of         .029     .015    3.469
             city

             %                          -.389     .120    10.450
             unemployed in
             tract

             % single                   -.023     .009    6.208
             family
             detached

             % African                  -.155     .060    6.596
             American

             Single                    -1.314     .468    7.866
             independent
             living

             Supported Housing           0(a)       --       --

Location     Supported
             housing                   -1.523     .470    10.522
             concentration
             --low

             Supported
             housing
             concentration              -.278     .543     .263
             --somewhat
             low

             Supported
             housing
             concentration              -.284     .481     .349
             --somewhat
             high

             Supported
             housing concentration       0(a)       --       --
             --high

             Overall
             empowerment--somewhat     -4.807    1.323    13.205
             low

             Overall
             empowerment--somewhat     -1.105    1.046    1.115
             high

             Overall
             empowerment                 0(a)       --       --
             --high

             Health--excellent          1.192     .395    9.111

             Health--good                .819     .381    4.618

             Health--poor                0(a)

             Housing
             satisfaction--            -1.169     .495    5.563
             bad

             Housing
             satisfaction--            -1.323     .439    9.080
             mixed

             Housing
             satisfaction--              0(a)       --       --
             good

Model fit    Intercept Only           188.723
-2 log       Final                    118.511
likelihood   Chi-Square               70.21**

Pseudo R     Cox and Snell               .494
squares      Nagelkerke                  .574
             McFadden                    .346

                                95% Confidence
                                  Interval

                df     Sig.    Lower    Upper
                               Bound    Bound

Threshold        1     .007    -9.722   -1.580
                 1     .160    -6.606   1.087

                 1     .063    -.002     .059

                 1     .001    -.625    -.153

                 1     .013    -.041    -.005

                 1     .010    -.273    -.037

                 1     .005    -2.232   -.396

                 0       --       --       --

Location
                 1     .001    -2.443   -.603

                 1     .608    -1.344    .787

                 1     .555    -1.226    .658

                 0       --       --       --

                 1     .000    -7.399   -2.214

                 1     .291    -3.156    .946

                 0       --       --       --

                 1     .003     .418    1.966

                 1     .032     .072    1.565

                 0

                 1     .018    -2.140   -.198

                 1     .003    -2.183   -.462

                 0       --       --       --

Model fit
-2 log
likelihood

Pseudo R
squares

Link function: Complementary Log-log. a This parameter is set to zero
because it is redundant. Significance < .01
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