Table 1 Clinical characteristics of the study participants according to the presence of pterygium in the Korean population (n = 12,258)
Pterygium | P | ||
|---|---|---|---|
No | Yes | ||
n = 11,389 | n = 869 | ||
Age, years | 44.3 ± 0.3 | 63.2 ± 0.6 | < 0.001 |
Sex, % men | 49.3 (0.5) | 46.9 (2) | 0.23 |
BMI, kg/m2 | 23.61 ± 0.05 | 23.9 ± 0.1 | 0.11 |
WC, cm | 80.9 ± 0.2 | 83.5 ± 0.4 | < 0.001 |
Serum 25(OH)D concentration, ng/mL | 17.4 ± 0.2 | 19.7 ± 0.3 | < 0.001 |
Education, % of ≥12 years | 72.9 (0.8) | 26.2 (2) | < 0.001 |
Income, % of lowest Q1 | 15.7 (0.6) | 37.4 (2.1) | < 0.001 |
Current smoker, % | 24.5 (0.6) | 17.3 (1.6) | < 0.001 |
Heavy drinker, % | 10.5 (0.4) | 8.2 (1.4) | 0.13 |
Regular exercise, % | 20.8 (0.6) | 22.8 (1.9) | 0.25 |
Occupation, % | 64.9 (0.6) | 60.9 (2.4) | 0.08 |
Cataract, % | 22.7 (0.9) | 61.1 (2.7) | < 0.001 |
Blepharoptosis, % | 7.4 (0.5) | 17.3 (1.8) | < 0.001 |
Metabolic syndrome, % | 24.5 (0.5) | 44.4 (2.4) | < 0.001 |
Diabetes, % | 8.2 (0.3) | 14.5 (1.7) | < 0.001 |
Hypertension, % | 26.4 (0.6) | 51.1 (2.3) | < 0.001 |
Daily sun exposure, % | < 0.001 | ||
< 2 h | 60.7 (0.9) | 46.8 (2.6) | |
2–5 h | 25.9 (0.8) | 24 (2) | |
> 5 h | 13.4 (0.7) | 29.3 (2.6) | |