文章基本信息

标题：Reporting Bias of Dampness Problems and Smoking—A Result of Study Design
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作者：Malin Knutz ; Linda Hägerhed Engman ; Thorbjörn Gustavsson 等
期刊名称：Open Journal of Preventive Medicine
印刷版ISSN：2162-2477
电子版ISSN：2162-2485
出版年度：2014
卷号：4
期号：3
页码：107-115
DOI：10.4236/ojpm.2014.43015
出版社：Scientific Research Publishing
摘要：Using questionnaire is a common, efficient and cheap way to collect data in population-based epidemiological studies. However, there is a general trend of declining response rates leading to a higher risk for bias affecting the validity of results. Use of anonymous questionnaires and/or other ways of distributions, e.g. via schools instead of postal, may increase response rates, but can also lead to other types of systematic errors. This study indicates that results from cross-sectional questionnaire studies differ depending on distribution method and whether the survey is anonymous or not. Also the official purpose of the survey may affect the outcome. When studying well-known risk-factors and health effects, potential methodological problems like reporting bias must be considered in cross sectional studies.
关键词：Questionnaire; Asthma; Longitudinal Study; Home Environment; Children; Dampness; Smoking; Bias