Barriers to Eligibility and Enrollment Among Older Women in a Clinical Trial on Osteoporosis

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Abstract
Objectives: The study examined whether ethnicity or socioeconomic status influenced a group’s ability to meet eligibility criteria and willingness to enroll. Method: The eligibility and enrollment status of 904 women aged 65 years and older who responded to recruitment efforts of an estrogen and osteoporosis clinical trial were analyzed. Results: Among women screened, 59% were White, 27% African Americans, and 14% Hispanics; average age was 75 years; 57.6% were eligible, of which 32% enrolled. High-income area residents were more likely to be eligible than lowincome residents. African Americans were less likely to be eligible for medical reasons than non-African Americans. Eligible Hispanics were more likely to be enrolled than non-Hispanics. African Americans were equally willing to enroll as Whites. Minority residents of low-income areas were more likely to enroll than minority residents of high-income areas. Discussion: Recruitment efforts should address barriers to eligibility and barriers to willingness to enroll.