Reference | Control n/total | Treatment n/total | Weight % | Relative risk (fixed) (95% CI) |
16 | 14/20 | 6/20 | 28.60 | 2.33 (1.13 to 4.83) |
19 | 7/25 | 5/25 | 23.80 | 1.40 (0.51 to 3.82) |
23 | 9/15 | 10/15 | 47.60 | 0.90 (0.52 to 1.55) |
Total | 30/60 | 21/60 | 100.00 | 1.43 (0.95 to 2.16) |
Test for hetrogeneity c2 = 4.49, degrees of freedom = 2 (P = 0.11). Test for overall effect Z = 1.70 (P = 0.09).