From: Aqueous humor and serum 25-Hydroxyvitamin D levels in patients with cataracts
 | N | Aqueous humor 25(OH) D level | P value | Serum 25(OH) D level | P value |
---|---|---|---|---|---|
Median (IQR) | Median (IQR) | ||||
Demographic characteristics | |||||
 Total number | 136 | 10.3 (5.5–16) |  | 15.6 (11.6–25.8) |  |
 Sex |  |  | 0.010 |  | 0.028 |
  Male | 69 | 11.5 (8.1–17.3) |  | 20.1 (13.4–27.3) |  |
  Female | 67 | 7.5 (4.7–14.4) |  | 14.2 (10.8–23.2) |  |
 Age (yr) |  |  | 0.571 |  | 0.702 |
  ≤ 59 | 36 | 9.7 (4.6–13.9) |  | 14.6 (9.3–27.9) |  |
  60–69 | 49 | 10.0 (4.7–17.4) |  | 19.6 (12.9–23.3) |  |
  70–79 | 34 | 10.1 (5.8–14.5) |  | 15.4 (13.0–29.6) |  |
  ≥ 80 | 17 | 11.0 (8.9–17.9) |  | 13.6 (10.7–27.8) |  |
 Average outdoor activity time (hr/day) |  |  | 0.146 |  | 0.432 |
  < 2 | 51 | 11.5 (6.6–16.3) |  | 14.6 (11.1–23.2) |  |
  2–6 | 61 | 8.7 (4.7–13.6) |  | 16.1 (12.5–28.4) |  |
  ≥ 6 | 24 | 13.0 (6.0–17.7) |  | 20.1 (12.0–23.6) |  |
 Occupation |  |  | 0.373 |  | 0.185 |
  None | 48 | 10.8 (7.0–17) |  | 15.2 (11.5–23.8) |  |
  Housewife/clerk | 49 | 8.2 (4.8–13.8) |  | 14.6 (10.8–23.4) |  |
  Farmer/outdoor worker | 39 | 10.5 (6–17.4) |  | 20.1 (12.9–29.6) |  |
 Vitamin D supplementation |  |  | 0.451 |  | 0.144 |
  No | 127 | 10.4 (5.4–16.7) |  | 15.3 (11.6–24.1) |  |
  Yes | 9 | 8.1 (5.8–12.0) |  | 29.2 (15.2–30.1) |  |
Clinical characteristics | |||||
 Type of cataract |  |  | 0.006 |  | 0.631 |
  Senile | 87 | 8.8 (4.4–13.6) |  | 16.1 (11.6–26.3) |  |
  Diabetic | 49 | 12.6 (7.5–20.2) |  | 14.7 (12.4–23.2) |  |
 Hypertension |  |  | 0.276 |  | 0.879 |
  No | 65 | 9.1 (4.7–14.6) |  | 15.6 (11.9–26.3) |  |
  Yes | 71 | 10.9 (5.8–16.7) |  | 15.6 (11.6–24.9) |  |
 Lung disease |  |  | 0.195 |  | 0.306 |
  No | 108 | 9.9 (5.5–15.6) |  | 16.2 (12.1–25.8) |  |
  Yes | 27 | 12.6 (7.4–17.9) |  | 13.5 (10.8–26.8) |  |
 Previous thyroid operation |  |  | 0.232 |  | 0.122 |
  No | 134 | 10.4 (5.5–16.2) |  | 15.7 (11.7–26.0) |  |
  Yes | 2 | 6 (3.0–9.0) |  | 9.5 (5.8–13.2) |  |