文章基本信息

标题：Application of ordinal logistic regression analysis in determining risk factors of child malnutrition in Bangladesh
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作者：Sumonkanti Das ; Rajwanur M Rahman
期刊名称：Nutrition Journal
印刷版ISSN：1475-2891
电子版ISSN：1475-2891
出版年度：2011
卷号：10
期号：1
页码：124
DOI：10.1186/1475-2891-10-124
语种：English
出版社：BioMed Central
摘要：The study attempts to develop an ordinal logistic regression (OLR) model to identify the determinants of child malnutrition instead of developing traditional binary logistic regression (BLR) model using the data of Bangladesh Demographic and Health Survey 2004. Based on weight-for-age anthropometric index (Z-score) child nutrition status is categorized into three groups-severely undernourished (< -3.0), moderately undernourished (-3.0 to -2.01) and nourished (≥-2.0). Since nutrition status is ordinal, an OLR model-proportional odds model (POM) can be developed instead of two separate BLR models to find predictors of both malnutrition and severe malnutrition if the proportional odds assumption satisfies. The assumption is satisfied with low p-value (0.144) due to violation of the assumption for one co-variate. So partial proportional odds model (PPOM) and two BLR models have also been developed to check the applicability of the OLR model. Graphical test has also been adopted for checking the proportional odds assumption. All the models determine that age of child, birth interval, mothers' education, maternal nutrition, household wealth status, child feeding index, and incidence of fever, ARI & diarrhoea were the significant predictors of child malnutrition; however, results of PPOM were more precise than those of other models. These findings clearly justify that OLR models (POM and PPOM) are appropriate to find predictors of malnutrition instead of BLR models.
关键词：Ordinal logistic regression model ; Proportional odds model ; Partial proportional odds model ; Binary logistic regression model ; Anthropometric index ; Child malnutrition