Table 2.
Comparison of vitamin D status based on serum concentration of 25(OH)D between groups
| Groups | Before intervention | After intervention | P valuea | ||||
|---|---|---|---|---|---|---|---|
| Deficient | Insufficient | Sufficient | Deficient | Insufficient | Sufficient | ||
| 1,000 IU/day, n (%) | 26 (70.3) | 5 (13.5) | 6 (16.2) | 3 (8.1) | 20 (54.1) | 14 (37.8) | .04 |
| 2,000 IU/day, n (%) | 20 (55.6) | 11 (30.6) | 5 (13.9) | 2 (5.6) | 10 (27.8) | 24 (66.7) | |
| Total, n (%) | 46 (63) | 16 (21.9) | 11 (15.1) | 5 (6.8) | 30 (41.1) | 38 (52.1) | |
Note. Deficiency is defined as <50 nmol L−1, insufficiency as 50–75 nmol L−1, and sufficiency as >75 nmol L−1.
a
Denotes the significance of differences in the distribution of vitamin D categories between the two groups (chi‐square test).