Fundus Examination of 23,861 Newborns by Digital Imaging in Ningbo

Table 3

Factors affecting retinal hemorrhage in full-term infants by univariate analysis.

Affecting factors		Total	N (%)	χ^2
Gender	Male	11,022	1996 (0.181)	0.443	0.506
	Female	9916	1831 (0.185)
Delivery mode	Vaginal delivery	11,984	3289 (0.274)	1576.614	<0.001
	Caesarean section	8954	538 (0.060)
Hypertension	Yes	1587	298 (0.188)	0.287	0.592
	No	19,351	3529 (0.182)
Diabetes	Yes	2019	374 (0.185)	0.091	0.763
	No	18,919	3453 (0.182)
Birth weight	＜2500 g	1210	181 (0.150)	16.48	<0.001
	2500–3500 g	14,895	2691 (0.181)
	≥3500 g	4833	955 (0.198)
Fetal distress	Yes	1873	468（0.250）	61.98	<0.001
	No	19,065	3359（0.176）