Figure 1From: Evaluation of sun holiday, diet habits, origin and other factors as determinants of vitamin D status in Swedish primary health care patients: a cross-sectional study with regression analysis of ethnic Swedish and immigrant women Plasma-25-OH-vitamin D concentrations (P-25(OH)D) by origin and reported sun holiday. The general linear regression model was used to compute expected mean plasma concentrations of 25-OH-vitamin D estimates based on origin and reported sun holiday.Back to article page