Vitamin D trial in Workplace
Not Applicable
Recruiting
- Conditions
- Endocrine, nutritional and metabolic disease
- Registration Number
- KCT0002540
- Lead Sponsor
- Samsung Electronics
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 92
Inclusion Criteria
(i) currently-employed worker at the relevant company
(ii) 'vitamin D deficient (serum 25(OH)D <10 ng/ml)' at 2016 health check-up
(iii) agree to take 2017 check-up after 120 days of vitamin D supplement intake
(iv) agree to utilization of 2016-2017 health check-up results by the researcher
Exclusion Criteria
(i) disagree to participate
(ii) pregnant or in breastfeeding
(iii) has histroy of renal disease or renal function disorder (serum creatiine >1.7 mg/dl or GFR <60 ml/min)
(iv) has history of calcium renal stone
(v) hypercalcemia(>10.5 mg/dl)
Study & Design
- Study Type
- Interventional Study
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method variables related to metabolic syndrome: blood pressure, glucose, cholesterol, body mass index and waist circumference
- Secondary Outcome Measures
Name Time Method serum vitamin D level