Outcome | No. of trials | Pooled effect | Heterogeneity | |||
---|---|---|---|---|---|---|
Effect size | 95%CI | P | I2 | P | ||
Caesarean section | 19 [4, 6, 7, 19, 23, 30,31,32, 34,35,36, 40,41,42,43,44, 46, 48] | RR = 0.82 | (0.69, 0.97) | 0.02 | 57 | 0.01 |
PIH or preeclampsia | RR = 0.48 | (0.40, 0.58) | < 0.01 | 11 | 0.34 | |
Premature rupture of membranes | RR = 0.61 | (0.50, 0.76) | < 0.01 | 15 | 0.31 | |
Macrosomia | 18 [6, 7, 19,20,21,22,23,24, 30, 31, 35,36,37, 41, 43, 44, 47, 49] | RR = 0.49 | (0.30, 0.80) | < 0.01 | 77 | < 0.01 |
Neonatal hypoglycaemia | RR = 0.67 | (0.51, 0.87) | < 0.01 | 39 | 0.08 | |
Preterm birth | RR = 0.27 | (0.20, 0.35) | < 0.01 | 38 | 0.08 | |
Neonatal asphyxia | RR = 0.17 | (0.08, 0.33) | < 0.01 | 0 | 0.85 | |
Polyhydramnios | RR = 0.16 | (0.10, 0.28) | < 0.01 | 0 | 0.99 | |
Admission to the NICU | RR = 0.89 | (0.60, 1.32) | 0.57 | 20 | 0.28 | |
Neonatal jaundice or hyperbilirubinemia | RR = 1.00 | (0.64, 1.55) | 0.99 | 0 | 0.68 | |
NARDS | RR = 0.66 | (0.33, 1.33) | 0.25 | 0 | 0.41 |