Demographics of prematurely born individuals and those born at term
| N RE/LE | Gender M/F | GA at birth (weeks) | BW (g) | |
| Mean (SD) | Mean (SD) | |||
| Range | Range | |||
| Control subjects | 44/44 | 26/18 | 39–41 | 3000–4000 |
| Prematures | 59/59 | 22/37 | 29.3 (2.1) | 1167 (237) |
| 24–34 | 700–1490 | |||
| No ROP* | 34/36 | 16/18 | 29.8 (2.0) | 1264 (195) |
| 26–34 | 711–1490 | |||
| Untreated ROP* | 12/10 | 4/8 | 29.2 (1.6) | 1082 (258) |
| 27–32 | 750–1466 | |||
| Treated ROP* | 13/13 | 2/11 | 28.0 (2.4) | 993 (201) |
| 24–32 | 700–1380 |
*In the eye with the most severe stage of ROP.
BW, birth weight; F, female; GA, gestational age; LE, left eye; M, male; N, number; RE, right eye; ROP, retinopathy of prematurity.