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The Gerontologist, Vol 31, Issue 5 593-597, Copyright © 1991 by The Gerontological Society of America


ARTICLES

Participation and adherence among older men and women recruited to the Beta-Carotene and Retinol Efficacy trial (CARET)

MD Thornquist, DL Patrick and GS Omenn
Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, University of Washington, Seattle 98195.

We evaluated as functions of age and gender participation and adherence rates in older adults recruited to pilot studies for CARET, a multicenter chemoprevention trial. Eligible were men and women aged 50- 69 who were current or recent former smokers, and men aged 45-74 with occupational exposure to asbestos. We found negligible differences by age in response to recruitment mailings, drop out during the enrollment process and after randomization, and adherence to taking the study capsules. Men had numerically lower drop-out and higher adherence rates than women, but differences were not statistically significant. These results should encourage researchers to recruit older men and women (at least up to age 69) to clinical trials.


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[Abstract] [PDF]




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Copyright © 1991 by The Gerontological Society of America.