Table 1
Incidence of ROP in the two consecutive groups in 1990 and 2000
No (%) patients
1990
2000
Total study group
260
253
ROP stage 1
24 (9.2)
19 (7.5)
ROP stage 2
29 (11.2)
27 (10.7)
ROP stage 3
45 (17.3)
44 (17.4)
ROP stage 4
6 (2.3)
2 (0.8)
ROP stage 5
1 (0.4)
0 (0)
Total ROP
105 (40.4)
92 (36.4)