Table 1 Demographic characteristics and comorbid disorders between the keratoconus group and controls
Keratoconus (N = 4609) | Controls (N = 27,654) | p-value | |
|---|---|---|---|
Age (years), mean ± SD | 27.43 ± 13.04 | 27.57 ± 12.91 | 0.50 |
Age group | n (%) | n (%) | |
12 − 19 years | 1271 (27.58) | 7563 (23.44) | 0.97 |
20 − 29 years | 1884 (40.88) | 11,377 (41.14) | |
30 − 39 years | 898 (19.48) | 5340 (19.31) | |
≥ 40 years | 556 (12.06) | 3374 (12.20) | |
Gender | |||
Male | 2508 (54.42) | 14,804 (53.53) | 0.27 |
Female | 2101 (45.58) | 12,850 (46.47) | |
Baseline comorbidity | |||
Hypertension | 148 (3.21) | 868 (3.14) | 0.79 |
Hyperlipidaemia | 71 (1.54) | 473 (1.71) | 0.41 |
Diabetes mellitus | 63 (1.37) | 338 (1.22) | 0.41 |
Follow − up time (years) | |||
Median (IQR) | 5.23 (3.52 − 7.46) | 5.34 (3.55 − 7.54) | 0.08 |