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Vitamin D Status and Its Influencing Factors in Zhejiang Province: A Multicenter Cross-Sectional Study

StatusEnrolling by Invitation
PhaseNot specified
Started
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Record History

  1. Study First Submitted
Vitamin D deficiency is a global public health problem, with an estimated 1 billion people affected worldwide, and large-scale systematic data for Zhejiang Province remain scarce. This is a multicenter, retrospective cross-sectional study. The objectives are to: (1) assess the distribution of serum 25-hydroxyvitamin D \[25(OH)D\] levels across regions, seasons, and demographic groups in Zhejiang Province and estimate the prevalence of vitamin D deficiency (\<20 ng/mL) and insufficiency (20-29 ng/mL); (2) identify and quantify key determinants of vitamin D status, including environmental exposures (ultraviolet radiation, green coverage), lifestyle (outdoor activity, sun protection), dietary vitamin D intake, and individual characteristics; and (3) provide scientific evidence for targeted intervention strategies, public health policy, and clinical guidelines in Zhejiang Province.
Trial Details
NCT Number NCT07866391
Lead Sponsor First Affiliated Hospital of Zhejiang University
Collaborators: Bioinformatics Society of Zhejiang Province
Conditions
(from sponsor)		 Vitamin D Deficiency
Related terms Vitamin D Deficiency
Enrollment 10,000 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov