Multivariate logistic regression analysis, independent risk factors of extrauterine growth restriction
| Variables | P value | AOR (95% CI) |
| Birth weight | ||
| Non-SGA | – | – |
| SGA | <0.001 | 15.2 (4.6 to 50.1) |
| Weight for GA | ||
| ≥1500 g | – | – |
| <1500 g | 0.03 | 2.2 (1.1 to 4.3) |
| Duration of hospital stay | ||
| <21 days | – | – |
| ≥21 days | <0.001 | 2.7 (1.4 to 5.3) |
AOR, adjusted OR; EUGR, extrauterine growth restriction; GA, gestational age; SGA, small for gestational age.