Table 2 Serum 25(OH)D concentration, daily sun exposure, and occupation according to the recurrence and morphology of pterygium in the Korean population (n = 12,258)
No pterygium | Recurrence | P | No pterygium | Morphology | P | ||||
|---|---|---|---|---|---|---|---|---|---|
No recurrence | Recurrence | Atrophic | Intermediate | Flesh | |||||
Serum 25(OH)D concentration, ng/mL | <.001 | < 0.001 | |||||||
< 15 | 41.4 (1.1) | 27.8 (2.4) | 28.7 (3.3) | 41.4 (1.1) | 25.2 (2.5) | 32 (3.7) | 30.2 (7.2) | ||
15–20 | 31.3 (0.7) | 30.7 (2.4) | 33.6 (3.5) | 31.3 (0.7) | 34.3 (2.5) | 26.4 (3.2) | 34 (7.2) | ||
20–25 | 16.5 (0.6) | 24.1 (2.3) | 24.3 (3.6) | 16.5 (0.6) | 24.6 (2.8) | 22.8 (2.6) | 26.5 (6.8) | ||
25–30 | 7 (0.4) | 11.2 (1.7) | 8.3 (2.3) | 7 (0.4) | 10.5 (2) | 11.1 (2.5) | 6.1 (3.2) | ||
> 30 | 3.8 (0.4) | 6.3 (1.3) | 5.1 (1.3) | 3.8 (0.4) | 5.3 (1.3) | 7.6 (1.9) | 3.2 (1.9) | ||
Daily sun exposure, hours | < 0.001 | < 0.001 | |||||||
< 2 | 60.7 (0.9) | 50.3 (3) | 38.1 (4.2) | 60.7 (0.9) | 52.1 (3.1) | 45.5 (3.9) | 16.8 (4.9) | ||
2–5 | 25.9 (0.8) | 21.5 (2.2) | 30.2 (3.5) | 25.9 (0.8) | 17.8 (2.3) | 27.5 (3.1) | 49.8 (8.6) | ||
> 5 | 13.4 (0.7) | 28.3 (2.8) | 31.8 (4.1) | 13.4 (0.7) | 30.1 (3.3) | 27 (3.2) | 33.4 (7.4) | ||
Occupation | < 0.001 | < 0.001 | |||||||
1 | 14.6 (0.5) | 2.6 (0.8) | 0.9 (0.6) | 14.6 (0.5) | 2.7 (0.9) | 1.5 (0.7) | 1.1 (1.1) | ||
2 | 9.5 (0.4) | 2.4 (0.8) | 4.1 (1.6) | 9.5 (0.4) | 4.2 (1.2) | 1.7 (0.8) | . | ||
3 | 14.5 (0.5) | 9 (1.8) | 6.5 (2) | 14.5 (0.5) | 9.2 (2) | 8.5 (2.1) | 0.8 (0.8) | ||
4 | 6.2 (0.7) | 24.7 (3) | 21.8 (3.7) | 6.2 (0.7) | 21.8 (3.5) | 27 (3.8) | 24 (6.5) | ||
5 | 11.9 (0.5) | 10.3 (1.7) | 10.4 (3.3) | 11.9 (0.5) | 9.6 (1.7) | 11.5 (2.8) | 10.4 (6.2) | ||
6 | 8 (0.3) | 14.2 (2) | 11.1 (2.2) | 8 (0.3) | 14.1 (2.4) | 12.1 (2.4) | 13.5 (4.8) | ||
7 | 35.3 (0.6) | 36.7 (2.6) | 45.2 (4) | 35.3 (0.6) | 38.5 (3.2) | 37.7 (3.7) | 50.2 (7.5) | ||