Sunlight Exposure and Vitamin D in Children

Completed

• Conditions: Healthy Schoolchildren
• Interventions: Other: None - observational study

• Registration Number: NCT01477827
• Lead Sponsor: University of Manchester

Brief Summary

The purpose of this study is to examine the amount of sunlight exposure and vitamin D status of adolescent schoolchildren in each season throughout the year.

Detailed Description

Not available

Study Timeline

• Study Start: 2010-06
• Study First Submitted: 2011-11-18
• Study First Submitted QC: 2011-11-18
• Study First Posted: 2011-11-23
• Primary Completion: 2012-07
• Study Completion: 2012-07
• Status Verified: 2013-01
• Last Update Submitted: 2013-01-14
• Last Update Posted: 2013-01-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 125

Inclusion Criteria

• Healthy school children aged 12-15 years
• White Caucasian
• Male or female

Exclusion Criteria

• History of photosensitivity disorder

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Healthy volunteers	None - observational study	Healthy adolescents aged 12-15 years

Primary Outcome Measures

Name	Time	Method
Serum concentration of 25-hydroxyvitamin D	Approximately every 3 months

Secondary Outcome Measures

Name	Time	Method
Dietary intake of vitamin D	Approximately every 3 months	Intake of foods containing vitamin D is recorded for a one week period and the average daily intake determined.
Amount of sunlight exposure received	Approx every 3 months	Exposure to sunlight over 7 consecutive days is measured using polysulphone badges with one badge for weekdays and a second badge for the weekend.

Trial Locations

Locations (1)

Salford Royal NHS Foundation Trust; 🇬🇧 Manchester, United Kingdom