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Demographic characteristics in keratoconus patients and controls
| Demographic characteristics | Patients (n = 127) No. (%) |
Controls (n = 168) No. (%) |
p value (2-tailed) |
|---|---|---|---|
| Age in years, mean (± SD) | 26.9 (6.6) | 46.9 (15.2) | 0.000* |
| Male | 65 (51.1) | 111 (66.0) | 0.010§ |
| Female | 62 (48.8) | 57 (33.9) | – |
| Familial keratoconus | 42 (33) | – | – |
* t test, § Pearson Chi2 test
