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Demographics of the main study cohort (n = 28 neonates)
| Sex | Male: 13 (46%) |
|---|---|
| Female: 15 (54%) | |
| Postmenstrual age at birth, median in days [IQR] | 273 [266–280] |
| Post-natal age at recording, median in days [IQR] | 3 [3–4] |
| Eye measured | RE: 11/28 (39%) |
| LE: 17/28 (61%) | |
| Iris colour | Blue: 26 (93%) |
| Brown: 2 (7%) | |
| Lid pigmentation | Light to moderate: 26 (93%) |
| Dark: 2 (7%) |
IQR, interquartile range; LE, left eye; RE, right eye
