Comparison 19. Mifepristone low dose (10 mg) versus low dose (5 mg).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Observed number of pregnancies (all women)	4	3110	Risk Ratio (M‐H, Fixed, 95% CI)	0.65 [0.33, 1.31]
2 Specific side effects	2		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
2.1 Nausea	2	2618	Risk Ratio (M‐H, Fixed, 95% CI)	1.13 [0.73, 1.75]
2.2 Headache	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	1.13 [0.69, 1.83]
2.3 Dizziness	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	0.87 [0.58, 1.31]
2.4 Fatigue	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	1.01 [0.79, 1.31]
2.5 Breast tenderness	2	2618	Risk Ratio (M‐H, Fixed, 95% CI)	0.95 [0.51, 1.75]
2.6 Lower abdominal pain	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	0.81 [0.52, 1.26]
3 Delay of menses	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
3.1 Early	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	0.62 [0.50, 0.76]
3.2 Delay	1	2418	Risk Ratio (M‐H, Fixed, 95% CI)	2.91 [2.51, 3.38]