Changes in Vitamin D Status in Overweight Middle-Aged Adults with or without Impaired Glucose Metabolism in Two Consecutive Nordic Summers

Table 4

Determinants of D vitamin D (nmol/l) identified by multivariate regression analysis in women () and men (). The overall R² for the model (women = 0.17) (men = 0.12).

Variable	Women		Men
	RC	value	RC	value
Fat (%)	–0.28	0.012	–0.19	0.109
Vitamin D supplementation	0.23	0.030	0.19	0.126
Age	0.16	0.136	–0.09	0.448
Glucose metabolism; NGT/IGT/T2DM	0.05	0.633	0.11	0.354
Fish intake per week	0.04	0.705	0.23	0.070

R²: explanatory value of the model; RC: standardized regression coefficient.