Birthweight <3rd centile – p1 (96 cases) | Birthweight ≥3rd < 10thcentile – p2 (259 cases) | All Cases – p3 (355 cases) | Controls – p4 (575 cases) | p value | |
---|---|---|---|---|---|
Vaginal delivery | 74 (77.1%) | 207 (79.9%) | 281 (79.1%) | 463 (80.6%) | NS |
Caesarean section | 16 (16.7%) | 33 (12.7%) | 49 (13.8%) | 73 (12.7%) | NS |
Vacuum extractor | 6 (6.2%) | 19 (7.4%) | 25 (7%) | 38 (6.7%) | NS |
Neonatal weight (media ± DS) | 2435.9 ± 268 | 2664 ± 142 | 2587.6 ± 221 | 3456.4 ± 327.4 | p1 vs p2, p1, p2 and p3 vs p4 < 0.001 |
Apgar < 7 at 5′ | 3 (3.1%) | 0 | 3 (0.8%) | 2 (0.3%) | p1 vs p2 and p4 < 0.05 p2 and p3 vs p4 = NS |
Lactate suggestive for acidosis | 2/52 (3.8%) | 4/125 (3.2%) | 6/177 (3.3%) | 10/214 (4.7%) | NS |
Neonatal resuscitation | 2 (2.1%) | 9 (3.5%) | 11 (3.1%) | 6 (1%) | p1 vs p2 and p4 = NS p4 vs p2 and p3 < 0.05 |