Table 2.

Prevalence of ROP in subjects of different gestational ages.

Gestational age (w)	No. of subjects	No. of ROP patients	Prevalence of ROP(%)
≤28 w	85	35	41.2
28–30 w	258	71	27.5
30–32 w	464	59	12.7
32–34 w	532	34	6.4
34–36 w	275	7	2.6

No. – number; ROP – retinopathy of prematurity.