Fig. 2
From: Vitamin D deficiency and supplementation in pregnancy in a multiethnic population-based cohort
a. Change in unadjusted mean 25(OH)D of Western European women at gestational week 15 and 28 - stratified for baseline levels (paired t-test). Women with <37 nmol/L at baseline were recommended 20 μg or 30 μg vitamin D daily. b. Change in unadjusted mean 25(OH)D of ethnic minority women at gestational week 15 and 28 - stratified for baseline levels (paired t-test). Women with <37 nmol/L at baseline were recommended 20 μg or 30 μg vitamin D daily