Skip to main content

Table 2 Regression analyses for antenatal factors predicting extensive resuscitation (N = 5298)

From: A clinical scoring system to predict the need for extensive resuscitation at birth in very low birth weight infants

Antenatal factor Univariate   Multivariate  
OR (95% CI) P value OR (95% CI) P value
Gestational age
  > 27 weeks 1.0 (Reference)   1.0 (Reference)  
 25–27 weeks 3.521 (2.600–4.768) <.001 3.003 (1.977–4.562) <.001
  < 25 weeks 7.510 (5.366–10.509) <.001 4.921 (2.926–8.276) <.001
Birth weight < 1000 g 3.490 (2.678–4.547) <.001 1.509 (1.013–2.246) 0.043
Birth weight < 3rd percentile 0.568 (0.340–0.950) 0.031 0.836 (0.481–1.453) 0.525
Male 1.363 (1.059–1.753) 0.016 1.329 (1.002–1.761) 0.048
Maternal hypertension 0.592 (0.412–0.847) 0.004 1.047 (0.693–1.582) 0.826
Amniotic fluid
 Normal 1.0 (Reference)   1.0 (Reference)  
 Oligohydramnios 1.764 (1.293–2.407) <.001 1.820 (1.286–2.575) 0.01
 Polyhydramnios 4.447 (2.551–7.752) <.001 6.203 (3.185–12.081) <.001
Antenatal steroid
 None 2.082 (1.552–2.791) <.001 2.164 (1.549–3.023) <.001
 Incomplete 1.081 (0.789–1.481) 0.626 0.989 (0.702–1.395) 0.951
 Complete 1.0 (Reference)   1.0 (Reference)  
Outborn 2.017 (1.004–4.052) 0.049 0.903 (0.209–3.902) 0.891
Chorioamnionitis 1.612 (1.230–2.112) 0.001 1.143 (0.851–1.536) 0.374