Factors associated with birth weight for gestational age
| Variables, no (%) | Total | SGA N=668 | AGA N=668 | P value |
| Maternal age (years) | 0.303 | |||
| <20 | 236 (17.7) | 115 (17.2) | 121 (18.1) | |
| 20–34 | 980 (73.4) | 485 (72.6) | 495 (74.1) | |
| ≥35 | 120 (9.0) | 88 (13.2) | 52 (7.9) | |
| Marital status | 0.207 | |||
| Married | 1283 (96.0) | 637 (95.4) | 647 (96.9) | |
| Single | 53 (4.0) | 31 (4.6) | 21 (3.1) | |
| Mode of delivery | <0.001 | |||
| Caesarean section | 509 (38.1) | 283 (42.3) | 226 (33.3) | |
| Vaginal delivery | 827 (61.9) | 385 (57.3) | 442 (66.1) | |
| Major obstetric complications | ||||
| Pregnancy-induced hypertension | 445 (33.3) | 290 (43.4) | 155 (23.2) | <0.001 |
| PROM | 191 (14.4) | 72 (10.8) | 120 (17.9) | <0.001 |
| Antepartum haemorrhage | 158 (11.8) | 63 (9.4) | 95 (14.2) | 0.007 |
| Chorioamnionitis | 61 (4.6) | 14 (2.1) | 47 (7.0) | <0.001 |
| Mother received dexamethasone | 435 (32.6) | 238 (35.6) | 197 (29.5) | 0.017 |
| Sex of the infant | <0.001 | |||
| Male | 573 (42.9) | 353 (52.8) | 220 (32.9) | |
| Female | 763 (57.1) | 315 (47.2) | 448 (67.1) | |
AGA, appropriate for gestational age; PROM, premature rupture of membranes; SGA, small for gestational age.