Predicting risk among non-respondents in prospective studies

Knowledge of heart disease risk among SHIELD respondents with dyslipidemia.

BACKGROUND Respondents in the US Study to Help Improve Early evaluation and management of risk factors Leading to Diabetes (SHIELD) reported whether they had a diagnosis of dyslipidemia, were taking prescription dyslipidemia medication, and knew their heart disease risk (low, moderate, high, or do not know). We assessed whether respondents who reported a diagnosis of dyslipidemia with or withou...

Predicting potential respondents' decision to participate in web surveys

Web-­‐based surveys have received increasing attention given the potential benefits of convenience, low cost, and time saving compared with other survey modes. However, the use of the internet to collect data is restrained by the lack of willingness of people to respond. The o...

COMPARISON BETWEEN RESPONDENTS AND NON-RESPONDENTS IN A NESTED CASE-CONTROL STUDY OF BRAIN TUMORS by

Comparison of mortality between respondents and non-respondents in a mail survey.

We conducted a population-based mail survey and prospectively compared mortality between respondents and non-respondents. Age-adjusted mortality rates for all causes were higher among non-respondents than among respondents in both sexes. Age-adjusted rate ratios were 1.50 for males and 1.33 for females. Non-respondents also had, in both sexes, higher mortality for three leading causes of death,...

Comparing healthcare utilization among health survey respondents with the total population – are respondents representative?

BACKGROUND Surveys are often used for analysis of health status and healthcare utilization in different socioeconomic groups. However, differential non-response rates may bias results. The aim of this study was to compare register data on outpatient healthcare utilization among respondents to a health survey to that of the total population and to investigate whether socioeconomic differences in...