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| Characteristic | Control (n:15) | ROP (n:13) | P-value |
|---|---|---|---|
| Sex (male/female) | 5/10 | 10/3 | 0.021 |
| Age (gestational week) | 28.9±2.0 | 27.3±1.9 | 0.036 |
| Birth weight (gram) | 1153.2±367.9 | 972.7±270.0 | 0.156 |
Abbreviation: ROP, premature retinopathy. Bold and italic values show significant P-values.
