Table 2. Unadjusted and Adjusted Risk Ratios for Race/Ethnicity and Subcohort Using Log-Binomial Regression.

Outcome by Race	Risk Ratio (95% CI)
	Unadjusted	Adjusteda	Adjustedb	Adjustedc
Necrotizing enterocolitis
Black	1.68 (1.26-2.24)	1.60 (1.18-2.17)	1.52 (1.10-2.11)	1.39 (1.00-1.93)
Hispanic	1.54 (1.13-2.08)	1.49 (1.07-2.06)	1.41 (1.00-1.99)	1.39 (0.98-1.96)
Asian	1.19 (0.79-1.78)	1.12 (0.47-1.70)	1.10 (0.71-1.71)	1.13 (0.73-1.76)
White	1 [Reference]	1 [Reference]	1 [Reference]	1 [Reference]
Intraventricular hemorrhage
Black	1.03 (0.72-1.48)	1.00 (0.67-1.48)	0.93 (0.63-1.40)	0.79 (0.53-1.16)
Hispanic	1.32 (0.92-1.89)	1.27 (0.86-1.88)	1.15 (0.76-1.73)	1.08 (0.72-1.62)
Asian	0.81 (0.47-1.38)	0.78 (0.45-1.34)	0.76 (0.43-1.33)	0.80 (0.46-1.38)
White	1 [Reference]	1 [Reference]	1 [Reference]	1 [Reference]
Bronchopulmonary dysplasia
Black	1.64 (1.38-1.95)	1.61 (1.34-1.93)	1.52 (1.24-1.87)	1.34 (1.09-1.64)
Hispanic	1.32 (1.10-1.60)	1.28 (1.05-1.56)	1.21 (0.97-1.51)	1.17 (0.94-1.47)
Asian	0.77 (0.58-1.02)	0.70 (0.52-0.94)	0.72 (0.53-0.99)	0.76 (0.55-1.03)
White	1 [Reference]	1 [Reference]	1 [Reference]	1 [Reference]
Retinopathy of prematurity
Black	1.43 (0.98-2.09)	1.16 (0.78-1.73)	1.05 (0.69-1.58)	0.91 (0.61-1.37)
Hispanic	1.51 (1.02-2.23)	1.18 (0.78-1.79)	1.08 (0.70-1.67)	1.05 (0.67-1.61)
Asian	2.09 (1.34-3.26)	1.76 (1.10-2.81)	1.87 (1.16-3.01)	1.85 (1.15-2.97)
White	1 [Reference]	1 [Reference]	1 [Reference]	1 [Reference]

^aAdjusted for sociodemographic factors (maternal age, parity, educational level, insurance status, and nativity; infant sex).

^bAdditionally adjusted for maternal morbidities (pregestational hypertension, gestational hypertension, pregestational diabetes, gestational diabetes, placenta previa, obesity, and smoking status).

^cAdditionally adjusted for gestational age and birth weight z score.