Table 2. Non-arteritic anterior ischemic optic neuropathy risk factor prevalence by age category (above and below 50 years of age).
| Age Category | Younger than 50 (N = 32,41%) | Older than 50 (N = 46,59%) | P-value | |
|---|---|---|---|---|
| Gender | Male (n,%) | 27 (84.4%) | 26 (56.6%) | 0.01 * |
| Female (n,%) | 5 (15.6%) | 20 (43.5%) | ||
| Diabetes mellitus (n,%) | 14 (43.8%) | 36 (78.3%) | 0.04 * | |
| Smoking (n,%) | 14 (43.8%) | 11 (23.9%) | 0.08 | |
| Hyperlipidemia (n,%) | 14 (35%) | 25 (65%) | 0.36 | |
| Hypertension (n,%) | 7 (21.9%) | 23 (76.7%) | 0.02 * | |
| Ischemic heart disease (n,%) | 2 (6.3%) | 14 (30.4%) | 0.01 * | |
| Stroke (n,%) | 0 | 12 (26.1%) | 0.01 * | |
| Obstructive sleep apnea (n,%) | 2 (6.3%) | 7 (15.2%) | 0.3 | |
| Cup-to-disc ratio ≤ 0.3 (n,%) | 22 (68.75%) | 26 (56.5%) | 0.3 | |
| Final visual acuity equals or better than 20/40 (logMAR ≤ 0.3) (n,%) | 17 (53.1%) | 13 (28.3%) | 0.03* | |
| Improvement of ≥ 0.3 logMAR from baseline to follow up, (n,%) | 11 (34%) | 12 (26%) | 0.4 | |
| Improvement of ≥ 3 decibels in MD of visual field from baseline to follow up (n,%) | 13 (40%) | 12 (26%) | 0.4 | |
• P-value ≤0.05 is statistically significant.