Table 2.

Association between race and incidence of severe ROP, incidence of any ROP, and incidence of plus disease

		Incidence of Severe ROP			Incidence of Any ROP			Incidence of Plus disease
Maternal race	N of infants	N of severe ROP (%)	Adjusted risk ratio* (95%CI)	P	N of any ROP (%)	Adjusted Risk ratio* (95% CI)	P	N of plus disease (%)	Adjusted Risk ratio* (95% CI)	P
All infants				<0.001			<0.001			<0.001
White	5580	694 (12.4%)	1.00		2411 (43.2%)	1.00		350 (6.3%)	1.00
Black	3252	360 (11.1%)	0.69 (0.62, 0.77)	<0.001	1370 (42.1%)	0.83 (0.80, 0.87)	<0.001	118 (3.6%)	0.44 (0.37, 0.54)	<0.001
Asian	353	42 (11.9%)	1.05 (0.83, 1.34)	0.68	108 (30.6%)	0.77 (0.68, 0.87)	<0.001	21 (5.9%)	1.04 (0.70, 1.53)	0.85
Gestational age <28 weeks				<0.001			<0.001			<0.001
White	2202	635 (28.8%)	1.00		1678 (76.2%)	1.00		322 (14.6%)	1.00
Black	1532	345 (22.5%)	0.71 (0.64, 0.78)	<0.001	1063 (69.4%)	0.87 (0.84, 0.90)	<0.001	114 (7.4%)	0.46 (0.37, 0.56)	<0.001
Asian	115	38 (33.0%)	1.06 (0.83, 1.35)	0.65	77 (67.0%)	0.86 (0.76, 0.96)	0.01	21 (18.3%)	1.14 (0.77, 1.68)	0.51
Gestational age ≥28 weeks				0.005			<0.001			0.001
White	3378	59 (1.7%)	1.00		733 (21.7%)	1.00		28 (0.8%)	1.00
Black	1720	15 (0.9%)	0.45 (0.25, 0.79)	0.005	307 (17.8%)	0.76 (0.67, 0.85)	<0.001	4 (0.2%)	0.25 (0.09, 0.71)	0.009
Asian	238	4 (1.7%)	1.08 (0.40, 2.94)	0.88	31 (13.0%)	0.64 (0.47, 0.88)	0.006	0 (0.0%)	ND

CI=Confidence interval.

^*Adjusted by birth weight, gestational age and gender.