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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| subjects | it is a cross-sectional research and there is only one group. |
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| Measure | Description | Time Frame |
|---|---|---|
| Serum 25OHD | It is a cross-sectional study. All measurements will be performed once after subjects are enrolled. | 0 day. |
| serum calcium and phosphate, creatinine, PTH, BALP and CTX | It is a cross-sectional study. All measurements will be performed once after subjects are enrolled. | 0 day |
| Bone mineral density of lumbar spine and hip | It is a cross-sectional study. All measurements will be performed once after subjects are enrolled. | 0 day. |
| Short physical performance battery | It is a cross-sectional study. All measurements will be performed once after subjects are enrolled. | 0 day. |
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Inclusion Criteria:
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In total, 1500 female subjects aged more than 30 years old (750 urban and 750 rural females) will be included
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Qin Wang, M.D., Ph.D. | Contact | +86 28 85422360 | wq3166@163.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| West China hospital, Sicuhuan University | Chengdu | Sichuan | 610041 | China |
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