Mean BWs and GAs of infants with severe ROP according to types of units
| University hospitals (n=192) | State hospitals (n=164) | Private hospitals (n=58) | P value* | |
| Mean GA (weeks) | 26.3±2 | 26.7±2.2 | 27.9±2.1 | <0.05 |
| Mean BW (g) | 878±250 | 905±273 | 1128±299 | <0.05 |
*The values are significantly higher in private hospitals than in university and state hospitals.
BW, birth weight; GA, gestational age; n, number of patients; ROP, retinopathy of prematurity.