Logistic Regression for proposed predictors of vitamin D Insufficiency with ‘training dataset’.

<p>Nagelkerke R Square = 0.46.</p><p>Hosmer and Lemeshow test p = 0.45.</p><p>Comparators are: age (4–8 years); white; blood test taken June–November; not on income support; more than half hour exercise/day/week; less than 2.5 hours TV/day/week; taking Vitamin D supplements.