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Clinical characteristics of the study group1
| Characteristic | Value |
| Male infants, n (%) | 46 (54) |
| GA at birth, wk | 25.9 ± 1.62 |
| Birth weight, g | 842 ± 237 |
| Birth weight SDS | −1.0 ± 1.3 |
| SGA, n (%) | 11 (24) |
| ROP, % | 19 ± 41 |
GA, gestational age; ROP, retinopathy of prematurity; SDS, SD score; SGA, small for gestational age.
Mean ± SD (all such values).
