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. 2019 Apr 3;9(4):e025580. doi: 10.1136/bmjopen-2018-025580

Table 9.

A summary of the contribution of participant identifications strategies to randomised controlled trial recruitment*†

Mass mailing Media coverage and advertising Health service referrals Community outreach Other, unspecified, unknown Participants enrolled
Kusek, 200244 783 (27%) 1570 (54%) 280 (10%) 119 (4%) 179 (6%) 2931 (100%)
Chlebowski, 201040 634 (100%) 634 (100%)
Lee, 201145 174 (47%) 129 (35%) 30 (8%) 8 (2%) 28 (8%) 369 (100%)
Heiney, 201042 25 (42%) NR 24 (41%) NR 59 (100%)
Bhar, 201338 6 (18%) 27 (82%) 33 (100%)

*Contribution defined as the number of participants randomised as a result of each strategy (percentage of all participants randomised).

†Poor quality studies excluded.

NR, not reported separately. In total, media and community strategies accounted for 17% of enrolled participants in this study.