Table 5.

Univariate and multivariate logistic regression analyses for neonatal risk factors in type 1 retinopathy of prematurity group

	Univariate				Multivariate
	OR	95% CI		P	OR	95% CI		P
		Lower	Upper			Lower	Upper
Sex	1.379	0.520	3.661	0.519
Nationality	0.634	0.239	1.682	0.360
Multiple births	0.681	0.236	1.966	0.478
Gestational age	0.675	0.498	0.916	0.012*	0.918	0.592	1.421	0.700
Birth weight	0.995	0.992	0.998	0.001*	0.995	0.991	0.999	0.009*
Apgar score at 1 min	0.929	0.748	1.154	0.077
Apgar score at 5 min	1.086	0.803	1.468	0.133
Resuscitation at birth	1.421	0.499	4.049	0.627
Weight gain at 6 weeks	0.999	0.996	1.003	0.734
Length of stay in the NICU	1.017	1.005	1.028	0.003*	1.012	1.000	1.025	0.056
Anemia	1.205	0.450	3.227	0.710
Oxygen therapy	1.296	1.159	1.448	0.443
RDS	1.869	0.384	9.101	0.349
BPD	11.094	1.972	62.401	0.006*	1.516	0.117	19.683	0.750
PDA	2.560	0.951	6.891	0.063
IVH	4.306	1.553	11.941	0.005*	5.179	1.46	18.29	0.011*
Hyperglycemia	0.663	5.638	5.638	0.227
Surfactant	1.684	0.440	6.446	0.447
Blood transfusion	0.852	0.306	2.372	0.759

NICU: Neonatal intensive care units, OR: Odds ratio, CI: Confidence interval, RDS: Respiratory distress syndrome, BPD: Bronchopulmonary dysplasia, IVH: Intraventricular hemorrhage