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General characteristics of study subjects
| Variables | Number (%) |
|---|---|
| Total | 769 (100.0) |
| Conjunctivitis | 191 (24.8) |
| Keratitis | 578 (75.2) |
| Sex | |
| Male | 494 (64.2) |
| Female | 275 (35.8) |
| Age (years) | |
| < 20 | 157 (20.4) |
| 20–40 | 266 (34.6) |
| 40–60 | 268 (34.9) |
| 60–80 | 75 (9.8) |
| ≥ 80 | 3 (0.4) |
| Address (district) | |
| Nam-gu | 26 (3.4) |
| Dalseo-gu | 163 (21.2) |
| Dalsung-goon | 31 (4.0) |
| Dong-gu | 24 (3.1) |
| Book-gu | 205 (26.7) |
| Seo-gu | 236 (30.7) |
| Suseong-gu | 44 (5.7) |
| Joong-gu | 40 (5.2) |
| Total visitors (denominator) | 282,017 |
