From: Retinopathy of prematurity: incidence report of outliers based on international screening guidelines
| Stage | Gestational age (weeks) | |||||
|---|---|---|---|---|---|---|
| ≤ 30 | 30.1–33.6 | ≥ 34 | ||||
| ROP diagnosis: | 219 | 131 | 24 | |||
| Treated | Non-treated | Treated | Non-treated | Treated | Non-treated | |
| 1 | 5 | 43 | 2 | 35 | 0 | 9 |
| 2 | 12 | 62 | 3 | 35 | 0 | 5 |
| 3 | 53 | 0 | 20 | 1 | 3 | 0 |
| 4 | 18 | 5 | 4 | 9 | 3 | 2 |
| 5 | 5 | 12 | 11 | 2 | 0 | 2 |
| Total | 93 | 122 | 49 | 82 | 6 | 18 |