A Prospective Study of the Incidence of Retinopathy of Prematurity in China: Evaluation of Different Screening Criteria

Table 4

Evaluation of different screening criteria for ROP.

Screening criteria	Infants meeting criteria	Infants not required for screening	Screening number reduction (%)	Missed ROP infants,	Missed infants with type I ROP	Missed infants with ROP (type I ROP) in 2009	Missed infants with ROP (type I ROP) in 2010	Missed infants with ROP (type I ROP) in 2011
GA ≤ 34 W and; BW ≤ 2000 g	2010	987	32.9	31	2	17 (0)	11 (2)	3 (0)
GA ≤ 33 W and/or; BW ≤ 1750 g	2409	588	19.6	18	1	14 (1)	3 (0)	1 (0)
GA ≤ 32 W and/or; BW ≤ 1500 g (UK)	1775	1222	40.8	53	3	33 (1)	17 (2)	3 (0)
GA ≤ 30 W and/or; BW ≤ 1500 g (US)	1005	1992	66.5	118	10	63 (4)	42 (5)	13 (1)