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OpenTrials
Completed

NCT Number: NCT01477827

Sunlight Exposure and Vitamin D in Children

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.

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Key information

Conditions

Healthy Schoolchildren

Age range

12 year–15 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Salford Royal NHS Foundation Trust

Manchester, M6 8HD, United Kingdom

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

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

Exclusion criteria

  • History of photosensitivity disorder

Treatment and study plan

None - observational study

Other

Primary outcomes

  1. Serum concentration of 25-hydroxyvitamin D

    Time frame: Approximately every 3 months

Secondary outcomes

  1. 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.

  2. 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.

Sponsors and collaborators

Lead sponsor

University of Manchester

Other

Registry information

Official study title

Sunlight Exposure and Vitamin D Status of Children in the UK

Important dates

Study start
2010
Primary completion
2012
Study completion
2012
First posted
Nov 23, 2011
Registry last updated
Jan 16, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.