Table 4.
Seasonal Variation in Sun Exposure Score and Daily Calcium and Vitamin D Intake
| Measurement | Spring (n = 26) | Summer (n = 18) | Autumn (n = 24) | Winter (n = 32) | ANOVA P-Value |
|---|---|---|---|---|---|
| Vitamin D supplementation | 15 (58) | 10 (56) | 16 (67) | 24 (75) | .12 |
| Daily supplemental vitamin D intake, IU | 1067 ± 1509 | 1130 ± 1785 | 1391 ± 1689 | 768 ± 800 | .45 |
| Daily dietary vitamin D, IU | 413 ± 398 | 290 ± 203 | 526 ± 732 | 484 ± 386 | .41 |
| Daily total vitamin D intake, IU | 1480 ± 1615 | 1420 ± 1780 | 1917 ± 2001 | 1228 ± 938 | .45 |
| Daily calcium intake, mg/dL | 1260 ± 856 | 931 ± 642 | 868 ± 702 | 1170 ± 862 | .28 |
| Sun exposure score (max = 24) | 8 ± 5 | 16 ± 5 | 9 ± 4 | 5 ± 3 | < .0001 |
Data are presented as N (%) or mean ± sd.