Results
Mothers and offspring characteristics were similar between the intervention and placebo groups, apart from longer breastfeeding duration in the intervention group. Adjusting for breastfeeding duration, offspring of mothers who received 1000 IU cholecalciferol daily had a lower odds ratio (OR) of atopic eczema at age 12 months: OR (95%CI) 0.55 (0.32-0.97), p=0.04. The ORs of atopic eczema in the intervention group at ages 24 and 48 months were 0.77 (0.47-1.24) and 0.71 (0.35-1.43), respectively.