Variable | Univariable OR (95% CI) | p value | *Multivariable OR (95% CI) | p value |
---|---|---|---|---|
Preterm (34-36wk) | 0.3 (0.1, 0.5) | <0.001 | 0.3 (0.1, 0.7) | 0.009 |
Parity | 0.8 (0.6, 1.0) | 0.15 | 1.7 (0.4, 1.2) | 0.21 |
Maternal smoking | 1.1 (0.5, 2.3) | 0.73 | 1.1 (0.4, 2.8) | 0.79 |
Maternal age | 1.0 (1.0, 1.1) | 0.538 | 1.1 (1.0, 1.1) | 0.05 |
Birth weight, g | 1.0 (1.0, 1.0) | 0.08 | 1.0 (1.0, 1.0) | 0.72 |
Apgar at one minute | 1.6 (1.3, 2.0) | <0.001 | 1.7 (1.2, 2.2) | <0.001 |
†Caesarean birth | 0.3 (0.1, 0.7) | 0.004 | 0.2 (0.1, 0.6) | <0.002 |
Multiple birth | 0.86 (0.21, 3.62) | 0.84 | 0.5 (0.1, 2.8) | 0.41 |