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Table 3 Secondary outcome—responded positively to invitation

From: Can we achieve better trial recruitment by presenting patient information through multimedia? Meta-analysis of ‘studies within a trial’ (SWATs)

Study

Standard

Multimedia

Odds ratio (95% CI)

% weight

GHT2000

100/1049 (9.5%)

87/1048 (8.3%)

0.86 (0.64 to 1.16)

23.8

GHT2000 (reminder)

59/1057 (5.6%)

53/1055 (5.0%)

0.90 (0.61 to 1.31)

14.4

PSM COPD

464/2280 (20.3%)

412/1934 (21.3%)

1.02 (0.79 to 1.33)

30.3

HI-Light

221/1136 (19.5%)

226/1094 (20.7%)

1.08 (0.83 to 1.40)

31.6

Pooled

844/5522 (15.3%)

778/5131 (15.2%)

0.98 (0.85 to 1.13)

100.0