Maternal vitamin D status during pregnancy and childhood bone mass at age 9 years: a longitudinal study

Background Vitamin D insufficiency is common in women of childbearing age and increasing evidence suggests that the risk of osteoporotic fracture in adulthood could be determined partly by environmental factors during intrauterine and early postnatal life. We investigated the effect of maternal vitamin D status during pregnancy on childhood skeletal growth. Methods In a longitudinal study, we studied 198 children born in 1991–92 in a hospital in...