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Abstract:
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Record linkage is used to extend the research capabilities of cross-sectional population health survey data. Linkage of medical records and other administrative data for survey respondents add detailed longitudinal information and, for some information, administrative data are considered more accurate than survey response. However, not all survey respondents agree to record linkage. At the National Center for Health Statistics, record linkage consent has been generally determined by provision of a Social Security Number (SSN). This provision has been shown to be associated with demographic and health characteristics and to differ among surveys. The purpose of this study is to examine correlates of recent SSN provision with factors associated with variables on the data collection process itself, known as paradata, in the 2015 National Health and Nutrition Examination Survey (NHANES). Examined paradata include information on the number of contact attempts needed for screener response, severity of refusal to participate, time of day and day of week of final screener. This analysis will show whether SSN provision is correlated with ease and willingness to participate in NHANES.
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