Genetic and Environmental Influences on Retinopathy of Prematurity

Table 2

Multivariate analysis for predictors of ROP. OR, odds ratio; CI, confidence interval.

Predictors	Number of infants at risk	Number of ROP (%)	Adjusted OR (95% CI)	value
Days of intubation
0	108	23 (21.3)	1 (reference)
1–3	49	11 (22.4)	1.07 (0.43–2.56)	0.9
4–9	46	20 (44.4)	2.84 (1.27–6.39)	0.008
>9	54	39 (72.2)	9.6 (4.26–22.01)	<0.001
Weight gain
>17	68	11 (16.7)	1 (reference)
≥12 <17	72	21 (29.2)	2.39 (0.96–6.04)	0.06
≥9 <12	49	18 (36.7)	3 (1.16–7.86)	0.02
<9	68	43 (63.2)	8.9 (3.69–21.92)	<0.001
Sepsis
No	179	51 (28.5)	1 (reference)
Yes	79	42 (53.8)	2.9 (1.62–5.27)	<0.001