Abstract
Little information is available on the utility of spending resources to recruit hard-to-reach subjects. In particular, the compliance of such subjects with study protocols and visit schedules has not been documented. We present recruitment data from a two-phase survey of asthma prevalence in which a subset of respondents to a brief screening survey was recruited to attend a 90-min clinic visit. Although 39% of phase I subjects responding to initial contact attempts participated in the second phase of the study, this dropped to 12% among those responding to the sixth contact attempt (a phone follow-up). In studies in which the representatives of the sample is not of paramount importance, we see little benefit in aggressively seeking to recruit hard-to-reach subjects.
Original language | English (US) |
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Pages (from-to) | 154-159 |
Number of pages | 6 |
Journal | Controlled Clinical Trials |
Volume | 15 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1994 |
Keywords
- Recruitment
- clinical trials
- compliance
- methodology
ASJC Scopus subject areas
- Pharmacology