| 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 | 12 [4, 7, 20,21,22, 32,33,34, 36, 43, 44, 49] | RR = 0.48 | (0.40, 0.58) | < 0.01 | 11 | 0.34 |
| Premature rupture of membranes | 7 [22, 32, 33, 36, 41, 46, 49] | 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 | 12 [4, 6, 7, 19, 24, 32,33,34, 36, 40, 41, 43] | RR = 0.67 | (0.51, 0.87) | < 0.01 | 39 | 0.08 |
| Preterm birth | 13 [7, 19,20,21,22, 31,32,33,34, 36, 41, 44, 49] | RR = 0.27 | (0.20, 0.35) | < 0.01 | 38 | 0.08 |
| Neonatal asphyxia | 5 [21, 22, 41, 44, 49] | RR = 0.17 | (0.08, 0.33) | < 0.01 | 0 | 0.85 |
| Polyhydramnios | 7 [4, 20,21,22, 43, 44, 49] | RR = 0.16 | (0.10, 0.28) | < 0.01 | 0 | 0.99 |
| Admission to the NICU | 7 [4, 7, 31,32,33, 35, 36] | RR = 0.89 | (0.60, 1.32) | 0.57 | 20 | 0.28 |
| Neonatal jaundice or hyperbilirubinemia | 6 [7, 31,32,33, 36, 41] | RR = 1.00 | (0.64, 1.55) | 0.99 | 0 | 0.68 |
| NARDS | 6 [7, 31,32,33, 36, 41] | RR = 0.66 | (0.33, 1.33) | 0.25 | 0 | 0.41 |
