Exposure factors | Non exposed group | Exposed group | Odds ratio | P value | ||
Total subject | Dry eyes | Total subject | Dry eyes | |||
Excessive wind | 420 | 189 | 25 | 13 | 1.3241 | 0.539 |
Sunlight/high temp | 316 | 126 | 129 | 76 | 2.1623 | 0.0003*** |
Air pollution | 417 | 191 | 28 | 11 | 0.7656 | 0.5602 |
Smoking | 383 | 166 | 62 | 36 | 1.81 | 0.03* |
Drugs | 414 | 178 | 31 | 24 | 4.55 | 0.0002*** |