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Sunlight Exposure and Vitamin D in Children

This study has been completed.
Information provided by (Responsible Party):
Lesley Rhodes, University of Manchester Identifier:
First received: November 18, 2011
Last updated: January 14, 2013
Last verified: January 2013
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.

Condition Intervention
Healthy Schoolchildren Other: None - observational study

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Sunlight Exposure and Vitamin D Status of Children in the UK

Resource links provided by NLM:

Further study details as provided by Lesley Rhodes, University of Manchester:

Primary Outcome Measures:
  • Serum concentration of 25-hydroxyvitamin D [ Time Frame: Approximately every 3 months ]

Secondary Outcome Measures:
  • Amount of sunlight exposure received [ Time Frame: 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.

  • Dietary intake of vitamin D [ Time Frame: Approximately every 3 months ]
    Intake of foods containing vitamin D is recorded for a one week period and the average daily intake determined.

Enrollment: 125
Study Start Date: June 2010
Study Completion Date: July 2012
Primary Completion Date: July 2012 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Healthy volunteers
Healthy adolescents aged 12-15 years
Other: None - observational study


Ages Eligible for Study:   12 Years to 15 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Schoolchildren in Greater Manchester

Inclusion Criteria:

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

Exclusion Criteria:

  • History of photosensitivity disorder
  Contacts and Locations
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Please refer to this study by its identifier: NCT01477827

United Kingdom
Salford Royal NHS Foundation Trust
Manchester, United Kingdom, M6 8HD
Sponsors and Collaborators
University of Manchester
Principal Investigator: Lesley Rhodes, MBBS MD FRCP University of Manchester
  More Information

Responsible Party: Lesley Rhodes, Professor of Experimental Dermatology, University of Manchester Identifier: NCT01477827     History of Changes
Other Study ID Numbers: Bupa Protocol 1
Study First Received: November 18, 2011
Last Updated: January 14, 2013

Additional relevant MeSH terms:
Vitamin D
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents processed this record on September 19, 2017