TABLE 3.

Models Using Variables in the Delivery Room (Birth) (n = 8713)

Variable	Time Period When Variable Was Evaluated	AUC c-statistic	% Increase in AUC	OR (95% CI)	P
Death/NDI
Birth weight, g	Birth	0.730		0.67 (0.64–0.70) (per 100 g increase)	<.0001
Apgar score at 5 min	Birth	0.758	2.8	0.83 (0.81–0.85) (per point increase)	<.0001
Male gender	Birth	0.773	1.5	2.00 (1.80–2.22)	<.0001
Gestational age, wk	Birth	0.779	0.6	0.86 (0.83–0.89) (per wk later)	<.0001
Antenatal steroids	Birth	0.783	0.4	0.56 (0.49–0.64) (treated with ANS)	<.0001
Death before discharge
Birth weight, g	Birth	0.785		0.61 (0.58–0.64)	<.0001
Apgar score-5 min	Birth	0.822	3.7	0.78 (0.76–0.80)	<.0001
Gestational age, wk	Birth	0.834	1.2	0.77 (0.74–0.80)	<.0001
Antenatal steroids	Birth	0.839	0.5	0.49 (0.43–0.56)	<.0001
Male gender	Birth	0.843	0.4	1.67 (1.49–1.88)	<.0001
NDI in survivors
Birth weight, g	Birth	0.607		0.75 (0.72–0.78)	<.0001
Male gender	Birth	0.640	3.3	1.87 (1.66–2.11)	<.0001
Intubation	Birth	0.654	1.4	1.76 (1.51–2.05)	<.0001
Inborn	Birth	0.659	0.5	1.66 (1.37–2.01)	<.0001

CI, confidence interval; OR, odds ratio.