- Fetal and Neonatal characteristics, complications, and outcomes association with maternal age.
| Variables | Maternal age (Years) | P-value | |||
|---|---|---|---|---|---|
| <25 | 25–29 | 30–34 | ≥35 | ||
| (n=591) | (n=914) | (n=771) | (n=696) | ||
| Neonatal characteristics | |||||
| Gestational age | |||||
| Pre-term | 96 (16.2) | 116 (12.7) | 94 (12.2) | 90 (12.9) | 0.338 |
| Term | 328 (55.5) | 536 (58.6) | 438 (56.8) | 406 (58.3) | |
| Post-term | 167 (28.3) | 262 (28.7) | 239 (31.0) | 200 (28.7) | |
| Birth centile | |||||
| <10 | 36 (6.1) | 58 (6.4) | 52 (6.8) | 37 (5.3) | 0.253 |
| 10–50 | 169 (28.6) | 253 (27.7) | 251 (32.6) | 197 (28.3) | |
| 51–90 | 240 (40.6) | 383 (42.0) | 317 (41.2) | 297 (42.7) | |
| >90 | 146 (24.7) | 218 (23.9) | 149 (19.4) | 165 (23.7) | |
| Delivery complications | |||||
| Shoulder dystocia | 0 (0.0) | 1 (0.1) | 1 (0.1) | 1 (0.1) | 0.851 |
| Breech | 22 (3.7) | 19 (2.1) | 23 (3.0) | 24 (3.4) | 0.236 |
| Transverse | 1 (0.2) | 4 (0.4) | 5 (0.6) | 0 (0.0) | 0.147 |
| Oblique | 1 (0.2) | 1 (0.1) | 2 (0.3) | 1 (0.1) | 0.898 |
| Neonatal outcome‡ | |||||
| Overall fetal complications | 166 (28.1) | 230 (25.2) | 171 (22.2) | 172 (24.7) | 0.097 |
| Miscarriage | 4 (0.7) | 2 (0.2) | 1 (0.1) | 0 (0.0) | 0.075 |
| Stillborn | 4 (0.7) | 3 (0.3) | 7 (0.9) | 5 (0.7) | 0.503 |
| Early neonatal death | 4 (0.7) | 1 (0.1) | 5 (0.6) | 1 (0.1) | 0.123 |
| Pre-term | 87 (14.7) | 136 (14.9) | 92 (11.9) | 79 (11.4) | 0.087 |
| Post-date | 20 (3.4) | 18 (2.0) | 19 (2.5) | 24 (3.4) | 0.212 |
| Large for gestational age | 5 (0.8) | 11 (1.2) | 3 (0.4) | 7 (1.0) | 0.337 |
| Small for gestational age | 4 (0.7) | 4 (0.4) | 11 (1.4) | 3 (0.4) | 0.071 |
| Intrauterine growth restriction | 19 (3.2) | 14 (1.5) | 10 (1.3) | 11 (1.6) | 0.041* |
| Congenital anomalies | 48 (8.2) | 62 (6.8) | 43 (5.6) | 51 (7.4) | 0.295 |