. Author manuscript; available in PMC: 2014 Apr 30.

Published in final edited form as: Cochrane Database Syst Rev. 2010 Sep 8;(9):CD007575. doi: 10.1002/14651858.CD007575.pub2

Comparison 8. Ginger versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Improvement in nausea (mean change score) over 4 days of treatment: women available to follow up	1	67	Mean Difference (IV, Fixed, 95% CI)	1.20 [0.22, 2.18]
2 Improvement in nausea (mean change score) over 4 days of treatment: ITT analysis	1	70	Mean Difference (IV, Fixed, 95% CI)	0.60 [−0.51, 1.71]
3 Little improvement in nausea	1	23	Risk Ratio (M-H, Fixed, 95% CI)	0.29 [0.10, 0.82]
4 Number of women continuing vomiting at day 6	1	22	Risk Ratio (M-H, Fixed, 95% CI)	0.42 [0.18, 0.98]
5 Spontaneous abortion	1	67	Risk Ratio (M-H, Fixed, 95% CI)	0.36 [0.04, 3.33]
6 Caesarean delivery	1	67	Risk Ratio (M-H, Fixed, 95% CI)	1.64 [0.51, 5.29]
7 Improvement in nausea intensity after treatment (day 5)	1	67	Risk Ratio (M-H, Fixed, 95% CI)	1.48 [1.07, 2.04]