Severity of Graves' ophthalmopathy in different studies
| Uretsky13 | Young14 | Gruters15 | Present study | |
|---|---|---|---|---|
| Age of onset (range in years) | 1–17 | 5–20 | Not mentioned | 2–16 |
| Number of cases | 23 | 33 | 43 | 83 |
| Abridged classification | ||||
| Class 0 | 11 (47.8%) | 17 (51.5%) | 24 (55.8%) | 31 (37.3%) |
| Class 1 | 8 (34.8%) | 12 (36.4%) | 16 (37.2%) | 24 (28.9%) |
| Class 1 | 8 (34.8%) | 12 (36.4%) | 16 (37.2%) | 19 (22.9%) |
| Class 2 | 3 (13.0%) | 3 (9.1%) | 0 | 12 (14.5%) |
| Class 3 | 1 (4.3%) | 1 (3.0%) | 3 (7.0%) | 4 (4.8%) |
| Class 3 | 1 (4.3%) | 1 (3.0%) | 3 (7.0%) | 7 (8.4%) |
| Class 4 | 0 | 0 | 0 | 1 (1.2%) |
| Class 5 | 0 | 0 | 0 | 11 (13.3%) |
| Class 6 | 0 | 0 | 0 | 0 |