Study | Exptl n/N | Ctrl n/N | Relative Risk (95% CI Fixed) | Weight |
---|---|---|---|---|
Chen 1996 | 2/28 | 1/28 | 2.00 [0.19, 20.82] | 3.8% |
Erdem 1993 | 5/15 | 7/16 | 0.76 [0.31, 1.89] | 25.4% |
Haque 1988 | 1/21 | 4/23 | 0.27 [0.03, 2.26] | 14.3% |
Mancilla-Ramirez 1992 | 2/19 | 2/18 | 0.95 [0.15, 6.03] | 7.7% |
Samatha 1997 | 0/12 | 4/16 | 0.15 [0.01, 2.46] | 14.6% |
Sidiropoulos 1981 | 2/20 | 4/15 | 0.38 [0.08, 1.78] | 17.2% |
Weisman 1992 | 2/14 | 5/17 | 0.49 [0.11, 2.13] | 17.0% |
Total | 14/129 | 27/133 | 0.55 [0.31, 0.98] | 100% |