Comparison 7. High‐dose (=/> 1 g) vs low‐dose (< 1 g) calcium supplements.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pre‐eclampsia	1	262	Risk Ratio (M‐H, Fixed, 95% CI)	0.42 [0.18, 0.96]
2 Preterm birth	1	262	Risk Ratio (M‐H, Fixed, 95% CI)	0.31 [0.09, 1.08]
3 Eclampsia	1	262	Risk Ratio (M‐H, Fixed, 95% CI)	0.32 [0.07, 1.53]
4 Stillbirth	1	262	Risk Ratio (M‐H, Fixed, 95% CI)	0.48 [0.13, 1.83]