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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 No relief from nausea | 1 | 150 | Risk Ratio (M-H, Fixed, 95% CI) | 0.23 [0.15, 0.36] |
| 2 Spontaneous abortion (1st or 2nd trimester) | 1 | 115 | Risk Ratio (M-H, Fixed, 95% CI) | 0.91 [0.17, 4.75] |
| 3 Perinatal mortality | 1 | 115 | Risk Ratio (M-H, Fixed, 95% CI) | 1.39 [0.06, 33.26] |
