Baseline characteristics of patients with NAION and controls
| NAION (n=59) | Controls (n=59) | |
| Number | 59 | 59 |
| Female | 28 (47.5) | 28 (47.5) |
| Male | 31 (52.5) | 31 (52.5) |
| Mean age (years (SD)) | 69.1 (8.2) | 69.7 (9.1) |
| Range (years) | 53–88 | 52–88 |
| Risk factors | ||
| Arterial hypertension | 30 (50.8) | 18 (30.5) |
| Diabetes mellitus | 18 (30.5) | 8 (13.5) |
| Stroke | 4 (6.8) | 1 (1.7) |
| Coronary heart disease | 9 (15.3) | 6 (10.2) |
| Smoking status | ||
| Past | 17 (28.8) | 15 (25.4) |
| Current | 7 (11.9) | 7 (11.9) |
| Never | 35 (59.3) | 37 (62.7) |
Numbers are given as n (%);
↵p<0.05.