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Vitamin D of Chinese Children and Adolescents

Vitamin D Deficiency Clinical Trial

Official title:
Vitamin D Nutritional Status and Its Related Factors for Chinese Children and Adolescents in 2010-2012

Clinical Trial Summary

The aim of this study was to assess the vitamin D status and analyze risk factors for vitamin D inadequacy of Chinese children and adolescents aged 6-17y.

Clinical Trial Description

In this study, we analyzed the vitamin D status of Chinese children and adolescents aged 6-17y, and related risk factors (such as gender, region strata, ambient UVB level at area of residence, season, and outdoor time, etc.). Serum 25 hydroxyvitamin D [25(OH)D] was measured with a radioimmunoassay kit in 15 000 children and adolescent participants in Chinese national nutrition and health survey (CNNHS) 2010-2012. Age, gender, region type, ethnicity, outdoor time, vitamin D supplementation were recorded in unified design questionnaires. Season was recorded by the date of blood taken; location was divided into north and south by China's Qinling mountains and Huaihe river; and ambient ultraviolet B (UVB) radiation level was classified according to the corresponding dose of each participant living area from National Aeronautics and Space Administration data. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03221972
Study type Observational
Source Centers for Disease Control and Prevention, China
Contact
Status Completed
Phase N/A
Start date January 1, 2010
Completion date October 30, 2016
View Details
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