Table 1.
Demographic and clinical characteristics of patients with keratoconus at the initial diagnosis.
| Total | Pediatric (≤ 18 y/o) | Adult (> 18 y/o) | p-value | |
|---|---|---|---|---|
| Number of patients | 152 | 20 (13.2%) | 132 (86.8%) | |
| Number of eyes | 288 | 37 (12.8%) | 251 (87.2%) | |
| Laterality | 1.0000a | |||
| OD | 146 | 19 (51.3%) | 127 (50.6%) | |
| OS | 142 | 18 (48.7%) | 124 (49.4%) | |
| Sex | 1.0000a | |||
| Male | 95 (62.5%) | 13 (65.0%) | 82 (62.1%) | |
| Female | 57 (37.5%) | 7 (35.0%) | 50 (37.9%) | |
| Age at KC diagnosis (years) | ||||
| Median (IQR) | 24.2 (11.2) | 15.1 (3.4) | 24.8 (10.7) | < .0001b* |
| Mean ± SD | 25.8 ± 8.4 | 15.3 ± 1.8 | 27.4 ± 7.9 | |
| Clinical appearance | ||||
| Vogt's striae | 32 (11.1%) | 3 (8.1%) | 29 (11.6%) | 0.7794a |
| Fleischer ring | 25 (8.7%) | 4 (10.8%) | 21 (8.4%) | 0.5424a |
| Cone morphology | 0.7147a | |||
| Nipple | 33 (11.5%) | 4 (10.8%) | 29 (11.5%) | |
| Oval | 161 (55.9%) | 23 (62.2%) | 138 (55.0%) | |
| Globus | 94 (32.6%) | 10 (27.0%) | 84 (33.5%) | |
| Cone location | 0.3582a | |||
| Central | 189 (65.6%) | 27 (73.0%) | 162 (64.5%) | |
| Paracentral | 99 (34.4%) | 10 (27.0%) | 89 (35.5%) | |
| Comorbidity | ||||
| Atopic dermatitis | 9 (5.9%) | 1 (5.0%) | 8 (6.1%) | 1.0000a |
| Eye rubbing | 19 (12.5%) | 4 (20.0%) | 15 (11.4%) | 0.2810a |