Table 3.

Odds of pregnancy related hypertensive disease by maternal race/ethnicity stratified by gestational age at delivery.

	Delivery < 34 weeks (N=1,878; 3.4%)			Delivery ≥ 34 weeks (N=53,910; 96.6%)
Maternal Race	N (%)	OR (95% CI)*	AOR (95% CI)†	N (%)	OR (95% CI)*	AOR (95% CI)†
Non-Hispanic white	228 (28.5)	Reference	Reference	2,724 (9.3)	Reference	Reference
Non-Hispanic black	154 (26.3)	0.89 (0.70–1.14)	0.85 (0.62–1.16)	1,290 (12.1)	1.34 (1.25–1.44)	1.10 (1.01–1.20)
Hispanic	81 (22.1)	0.71 (0.53–0.95)	0.61 (0.43–0.86)	828 (8.3)	0.89 (0.82–0.96)	0.85 (0.77–0.93)
Asian/Pacific Islander	9 (16.7)	0.50 (0.24–1.04)	0.54 (0.25–1.15)	134 (5.1)	0.53 (0.44–0.63)	0.68 (0.57–0.82)
Multiracial/other	11 (15.5)	0.46 (0.24–0.89)	0.40 (0.19–0.84)	106 (8.4)	0.89 (0.73–1.09)	0.87 (0.70–1.08)

Abbreviations: AOR, adjusted odds ratio; CI, confidence interval; N/A, not applicable; OR, odds ratio

Note: Analysis limited to normotensive women at the beginning of pregnancy (women with chronic hypertension or superimposed preeclampsia were excluded from this analysis).

Multivariable logistic regressions were performed to obtain the odds ratios.

^*Models were adjusted for site.

^†Models were adjusted for maternal age, prepregnancy maternal body mass index, insurance, smoking, marital status, and site.