Measurement Strategies Designed and Tested in the Veterans Health Study

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Abstract
The goal of collecting a large number of health status variables from a population of elderly respondents with high comorbidity offers several challenges and opportunities that are described in this article. The data collection strategies used in the Veterans Health Study (VHS) are discussed, and we detail the development and item content of the questionnaires used. The VHS included various modes of administration, in-person interviews, interviewer and self-administered questionnaires, proxy interviews, and administrative databases to ensure a more complete assessment of health status. Included is a discussion of staffing and the training methods developed. The article concludes with lessons learned that may be of interest to other researchers conducting similar health outcomes studies.