Vitamin D Deficiency Epidemiological Research in Sichuan, China

• Conditions: Healthy

• Registration Number: NCT01457365
• Lead Sponsor: West China Hospital

Brief Summary

Vitamin D insufficiency and deficiency is pandemic in the world.Sichuan Basin has a subtropical monsoon climate with China's lowest sunshine totals. Inferably, the prevalence of vitamin D insufficiency/deficiency in Sichuan basin is high, and possibly the highest in China. This study will research the serum 25OHD level to get the prevalence of vitamin D deficiency and insufficiency of urban and rural residents in Sichuan Province, China.

Detailed Description

Not available

Study Timeline

• Status Verified: 2011-10
• Study First Submitted: 2011-10-17
• Study First Submitted QC: 2011-10-20
• Last Update Submitted: 2011-10-20
• Study First Posted: 2011-10-21
• Last Update Posted: 2011-10-21
• Study Start: 2011-12
• Primary Completion: 2012-02
• Study Completion: 2012-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: Female
• Target Recruitment: 1500

Inclusion Criteria

• Females aged 30 years old living in Sichuan province.

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Serum 25OHD	0 day.	It is a cross-sectional study. All measurements will be performed once after subjects are enrolled.
serum calcium and phosphate, creatinine, PTH, BALP and CTX	0 day	It is a cross-sectional study. All measurements will be performed once after subjects are enrolled.
Bone mineral density of lumbar spine and hip	0 day.	It is a cross-sectional study. All measurements will be performed once after subjects are enrolled.
Short physical performance battery	0 day.	It is a cross-sectional study. All measurements will be performed once after subjects are enrolled.

Trial Locations

Locations (1)

West China hospital, Sicuhuan University; 🇨🇳 Chengdu, Sichuan, China