Vitamin D deficiency is associated with numerous public health issues. Limited data are
available for children in southern China, a region that receives abundant sunlight. We aimed …

Background Recent studies have suggested that vitamin D deficiency in children is
widespread. But the vitamin D status of Chinese children is seldom investigated. The …

Background Vitamin D insufficiency and deficiency in childhood are common. However, the
status and influential factors of vitamin D during different ages are not clear. This study …

Abstract Background Vitamin D deficiency (VDD) and vitamin D insufficiency (VDI) are highly
prevalent in the world, but the vitamin D status of children in northeast China is seldom …

Background: Vitamin D deficiency is considered to be a public health problem. However, the
nutrient status of vitamin D in Chinese children is unclear. The aim of this study was to …

This study was conducted to estimate the 25-hydroxyvitamin D (25 (OH) D) levels and
explore factors related to vitamin D deficiency/insufficiency. This was a multicenter, hospital …

Vitamin D plays a critical role in calcium and phosphate metabolism and helps maintain
skeletal integrity in childhood, yet vitamin D status in Chinese children and adolescents is …

Background The increasingly recognized importance of vitamin D has been discussed and
vitamin D status among young children has attracted widespread attention in recent years …

Background Vitamin D deficiency is documented as a common health problem in the world.
Limited data has been found on the prevalence of vitamin D deficiency in Beijing area. Aim …

Vitamin D is very important in maintaining children's bone health because of its regulatory
role in calcium and phosphate metabolism. To better understand vitamin D status and …