Psychopathology and Attirition in the Epidemiologic Catchment Area Surveys

Abstract
This analysis shows the effect of sociodemographic variables and psychopathology on attriton in a 1-year follow-up of 10, 167 household-residing respondens, aged 18–64 years, from four sites of the National Institute of Mental Health Epidemiologic Catchment Area Program. Attrition is defined in two ways: failure to locate (n = 1, 035) and refusal to participate (n = 1.010). As comparedm with 8, 1222 respondents successfully interviewed after 1 year, those who are not located are more likely to be male, Hispanic, young, and unmarried. Refusers are older and more likely to be married and to have lower eduational attainment han those successfully rein terviewed. After adjusting for sociodemographic variables, psychopathology had a small to moderate effectg on attriton. Panic and depression were associated with failure to loate, but no diagnoses, or selected symptoms, were strongly or significantly associated with refusal to participate in sthe second wave. Am J Epidemol 1992; 135: 1051–9

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