Table 2.
Comparison of self-reported intakes of vitamin D from specific dietary sources in children with deficient and adequate levels of serum 25-OHD measured after winter
| The source of vitamin D supplementation | Participants with the level of 25-OHD < 50 nmol/L | Participants with the level of 25-OHD ≥ 50 nmol/L | p value | ||
|---|---|---|---|---|---|
| Supplemented, n (%) | Not supplemented, n (%) | Supplemented, n (%) | Not supplemented, n (%) | ||
| Cod-liver oil | 147 (27%) | 399 (73%) | 46 (46%) | 54 (54%) | < 0.01 |
| Multi-vitamins | 129 (23%) | 422 (77%) | 39 (39%) | 62 (61%) | < 0.01 |
| Vitamin D only products | 31 (6%) | 495 (94%) | 11 (12%) | 81 (88%) | < 0.03 |
p values are derived from χ2 test