Table 3.

Race-specific odds ratios (OR) and adjusted odds ratios (AOR) for high (≥median) versus low (<median) vaginal HNP1-3 levels in mid-pregnancy and risk of preterm delivery.

	Non-Hispanic White (N=569)			African American (N=462)
	OR (95% CI)	AOR(95% CI)*	AOR(95% CI)†	OR(95% CI)	AOR(95% CI)*	AOR(95% CI)†
Term	Ref	Ref	Ref	Ref	Ref	Ref
Medically Indicated
Preterm Delivery (<37 weeks)	0.8 (0.4, 1.5)	0.8 (0.4, 1.4)	0.8 (0.4, 1.4)	0.7 (0.3, 1.5)	0.7 (0.3, 1.7)	0.7 (0.3, 1.8)
Spontaneous
Preterm Delivery (<37 weeks)	0.8 (0.5, 1.3)	0.8 (0.5, 1.3)	0.8 (0.5, 1.3)	2.2 (1.2, 4.0)	2.4 (1.3, 4.4)	2.3 (1.2, 4.3)
32-36 weeks	0.8 (0.5, 1.2)	0.8 (0.5, 1.3)	0.8 (0.5, 1.3)	2.3 (1.2, 4.3)	2.4 (1.2, 4.7)	2.3 (1.1, 4.7)
<32 weeks	2.2 (0.4, 13.4)	1.9 (0.3, 13.1)	1.8 (0.2, 13.2)	2.0 (0.6, 7.5)	2.3 (0.6, 9.2)	2.3 (0.6, 9.2)

^*Adjusted for maternal age, week of pregnancy at study enrollment and bacterial vaginosis status

^†Adjusted for maternal age, week of pregnancy at study enrollment, bacterial vaginosis status, and culture results for sexual transmitted diseases during pregnancy (negative/positive)