Determinants of the mother and child's 25-hydroxyvitamin D (25(OH)D)) level
| Season of sampling | ||
| High* | Low* | |
| Mother | ||
| Vitamin D containing multivitamin supplements use | ||
| Yes (Mean (SD)) | 54.5 (16.9) | 42.6 (15.5) |
| No (Mean (SD)) | 46.4 (17.2) | 29.9 (13.1) |
| p value† | 0.000 | 0.000 |
| Model (beta (SE)) | ||
| constant | 41.3 (2.1) | 18.8 (2.0) |
| Vitamin D containing multivitamin supplements use (yes vs no) | 7.7 (1.3) | 12.6 (1.2) |
| Overweight‡ (yes vs no) | −9.0 (2.2) | −0.8 (2.0) |
| Recruitment group (alternative vs regular) | −4.5 (1.4) | −4.7 (1.4) |
| Child | ||
| Vitamin D supplements use | ||
| Yes (Mean (SD)) | 80.1 (20.6) | 67.7 (18.4) |
| No (Mean (SD)) | 73.6 (18.0) | 48.5 (18.3) |
| p value† | 0.003 | 0.000 |
| Model (beta (SE)) | ||
| constant | 73.6 (1.8) | 48.5 (2.2) |
| Vitamin D supplement use (yes vs no) | 3.2 (1.1) | 9.6 (1.3) |