Table 3.

Model Results of Logistic Regression for Bronchopulmonary Dysplasia Status

Parameter	Odds Ratio	95% Confidence Interval	P Value
Decreasing birth weight z-score, 1 SD	2.40	1.66–3.46	<0.01
Male sex	1.37	0.92–2.03	0.12
Maternal race: white	1.85	1.11–3.08	0.02
Maternal ethnicity: Hispanic or Latino	0.70	0.42–1.17	0.17
Decreasing gestational age, wk	1.89	1.65–2.17	<0.01
Maternal smoking status	2.02	1.09–3.74	0.02
Antenatal corticosteroids	0.90	0.51–1.59	0.71
Multiple gestations	1.50	0.92–2.44	0.10
Cesarean section delivery	0.63	0.40–0.99	0.05
Preexisting diabetes	0.92	0.32–2.65	0.87
Gestational diabetes	1.23	0.56–2.67	0.61
Preexisting hypertension	2.11	1.05–4.24	0.04
Prolonged rupture of membranes	0.86	0.50–1.48	0.59
Chorioamnionitis	0.87	0.51–1.48	0.60
Preeclampsia	0.97	0.55–1.70	0.92
Antepartum hemorrhage	1.13	0.62–2.05	0.69
Decreasing maternal age, yr	1.01	0.98–1.05	0.57
Maternal alcohol consumption	0.97	0.20–4.70	0.97
Maternal drug use	0.94	0.44–2.02	0.88
Tocolytics	1.08	0.72–1.63	0.71

Risk factors for bronchopulmonary dysplasia: parametric estimates, Wald 95% confidence intervals, and P values derived from the logistic regression analysis modeling bronchopulmonary dysplasia severity.