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NCT01385085 Clinical Trial

Impact of Work Environment Absent of Natural Light on Vitamin D Levels

Vitamin D Deficiency Clinical Trial

Official title:
Impact of Work Environment Absent of Natural Light on Vitamin D Levels

Clinical Trial Details — Status: Not yet recruiting

Administrative data
NCT number NCT01385085
Other study ID # 922-2010-IDF-CTIL
Secondary ID
Status Not yet recruiting
Phase N/A
First received June 28, 2011
Last updated June 28, 2011
Start date November 2011

Study information
Verified date June 2011
Source Medical Corps, Israel Defense Force
Contact n/a
Is FDA regulated No
Health authority Israel: Israeli Health Ministry Pharmaceutical Administration
Study type Observational

Clinical Trial Summary

Three types of workers exposed to different levels of natural sunlight will be tested for Vitamin D blood level, PTH, Ca, P, albumin and alkaline phosphatase.

In addition, each tested worker will be asked to fill a questionnaire for demographic, medical and personal habit information.

Recruitment information / eligibility
Status Not yet recruiting
Enrollment 300
Est. completion date
Est. primary completion date
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria:

- people employed in their current work place at least 6 months,

Exclusion Criteria:

- people who consume food additives containing Vitamin D.

- people who have a chronic illness which harms the Vitamin D absorption, such as Celiac, chronic Pancreatitis, Cystic Fibrosis and IBS.

- people who have a chronic illness which harms Vitamin D metabolism, such as chronic hepatitis, kidney insufficiency and Nephrotic Syndrome.

- pregnant women.

- people who require prescribed medicine like steroids, anti-convulsion, and HIV treatments.

Study Design

Observational Model: Case-Crossover, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Locations
Country Name City State
n/a

Sponsors (1)
Lead Sponsor Collaborator
Medical Corps, Israel Defense Force
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