Table 5.

Multivariable Poisson regression model with relative risk for composite major neonatal morbidity.

Variable	Unadjusted RR (95% CI)	p-value	Adjusted RR (95% CI)	p-value
Delivery gestational age, per one week increase	0.76 (0.73 – 0.80)	<0.001	0.77 (0.73 – 0.80)	<0.001
Clinical chorioamnionitis	1.77 (1.36 – 2.31)	<0.001	1.35 (1.09 – 1.68)	0.006
Caucasian race	1.05 (0.78 – 1.41)	0.759	1.25 (0.98 – 1.58)	0.072
Neonatal transfer in first 24 hours of life	0.38 (0.13–1.08)	0.070	0.50 (0.20 – 1.24)	0.134
Cervical dilation at presentation, per 1 centimeter increase	1.05 (0.94 – 1.19)	0.394	1.07 (0.97 – 1.17)	0.163
Any tocolysis	0.95 (0.69 – 1.31)	0.759	0.90 (0.70 – 1.16)	0.420

^*Potential confounders dropped from the final model (p>0.20) included: nulliparity, antenatal corticosteroid administration, achieving at least 48 hours of latency, and culture proven neonatal sepsis.