Comparison 6. Intravenous iron and oral iron versus oral iron.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Persistent anaemia symptoms on a VAS scale: 1 week	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	1.75 [0.56, 5.46]
2 Persistent anaemia symptoms on a VAS scale: 2 week	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	0.6 [0.15, 2.33]
3 Persistent anaemia symptoms on a VAS scale: 6 week	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	3.0 [0.33, 27.50]
4 EPDS ‐ 1 week	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	3.0 [0.65, 13.88]
5 Length of hospital stay	1	72	Mean Difference (IV, Fixed, 95% CI)	‐0.30 [‐1.02, 0.42]
6 Adverse events (pooled) ‐ 1 week	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	0.67 [0.21, 2.16]
7 Adverse events (pooled) ‐ 2 weeks	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	0.29 [0.06, 1.28]
8 Adverse events (pooled) ‐ 6 weeks	1	72	Risk Ratio (M‐H, Fixed, 95% CI)	0.4 [0.08, 1.93]
9 Red blood cell transfusion	2	112	Risk Ratio (M‐H, Random, 95% CI)	1.0 [0.15, 6.72]
10 Anaphylaxis or evidence of hypersensitivity	1	40	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]