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This report examines the impact of individualized, population-based recruitment and retention approaches on the development of a subject pool, enrollment, and retention at 12 months of healthy, community-based women in three ethnic groups: African Americans, non-Hispanic European Americans, and Mexicans/Central Americans. Of 722 women contacted and screened, 346 (48%) were eligible and consented to participate. Attrition at 12 months was low (10%) compared with other published reports. The largest group of potential subjects was identified through broadcast media approaches, but this method produced the highest number of ineligible women and highest rate of attrition. Printed matter produced the next largest group of potential subjects, but ineligibility was high (53%). Face-to-face interactions enrolled the highest proportion of eligible women (84%) and lowest overall attrition (7%). Direct referral yielded fairly efficient enrollments (57%) and average attrition. Multiple approaches for recruitment can produce a diverse sample of healthy, community-based women. Face-to-face recruitment results in the highest yield of participants with the lowest attribution but is presumed to require more resources.
Gilliss et al. (Mon,) studied this question.