The Hipaa Authorization Form and Effects on Survey Response Rates, Nonresponse Bias, and Data Quality

BACKGROUND: There has been speculation that the Health Insurance Portability and Accountability Act (HIPAA) has muted participation in research but little direct evidence to substantiate those claims exists. OBJECTIVE: To evaluate the effects of including a HIPAA authorization form (HAF) on multiple measures of survey performance. RESEARCH DESIGN, SUBJECTS: A community survey of Olmsted County, Minnesota residents conducted between September 2005 and April 2006. A total of 6939 cases were randomly assigned to 2 experimental conditions where half of the subjects received a 1-page HAF (n = 3469) and the other half did not (n = 3470). MAIN OUTCOME MEASURES: Response rate, nonresponse bias, and data quality. RESULTS: At the end of data collection, a response rate of 39.8% was observed in the HAF condition and 55.0% in the No HAF condition (P < 0.0001). There was a negligible but statistically significant (P < or = 0.001) over-representation of males in the No HAF condition but no difference in the amount of missing data between the 2 groups. However, reports of general health and the percentage of respondents indicating that they were nonsmokers were both significantly (P < or = 0.01) lower in the No HAF condition than in the HAF condition. CONCLUSIONS: Inclusion of a minimally burdensome version of the HAF reduced survey response rates by up to 15 percentage points. This could have implications for a study's statistical power. There was little evidence that the form affected nonresponse bias or data quality

Authorization · Business · Computer security · Confidentiality · Data collection · Data quality · Health Insurance Portability and Accountability Act · Non-response bias · Quality (philosophy) · Response bias · Statistics · Survey data collection · Computer Science · Ethics in Clinical Research · Global Cancer Incidence and Screening · Mathematics · Medicine · Psychology · Social Psychology · Survey Methodology and Nonresponse

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