Comparison 1. Individual maternal education versus routine care.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Observed maternal competence	1	16	Mean Difference (IV, Fixed, 95% CI)	1.87 [‐16.04, 19.78]
2 Adaptation to the maternal role (Lederman tool)	1	16	Mean Difference (IV, Fixed, 95% CI)	12.0 [‐4.83, 28.83]
3 Adaptation to the maternal role (Sheehan tool)	1	16	Mean Difference (IV, Fixed, 95% CI)	2.12 [‐1.82, 6.06]
4 Satisfaction with maternal role preparation	1	16	Mean Difference (IV, Fixed, 95% CI)	21.59 [11.23, 31.95]