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Factors influencing ln25(OH)D concentration.
| Determinants | β (SE) | p-Value |
|---|---|---|
| Age | 0.13 (0.05) | 0.009 |
| BMI | 0.07 (0.05) | 0.15 |
| Examination date (May–October/November–April) | −0.19 (0.05) | <0.001 |
SE—standard error; BMI—body mass index; examination date is categorical variable: May–October—0, November–April—1.
