Sunlight Exposure and Vitamin D Status of Children of South Asian Ethnicity Living in the UK

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01623414

Enrollment

131

Registered

2012-06-20

Start date

2012-09-30

Completion date

2014-10-31

Last updated

2015-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

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

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

12 Years to 15 Years

Healthy volunteers

Yes

Inclusion criteria

* Healthy schoolchildren aged 12-15 years * Sun-reactive skin type V (naturally brown skin) * South Asian ethnicity * Male or female

Exclusion criteria

* History of photosensitivity disorder * Non-ambulant

Design outcomes

Primary

Measure	Time frame	Description
Change in serum concentration of 25-hydroxyvitamin D	1 year	Serum vitamin D will be assessed every 3 months over a period of 1 year

Secondary

Measure	Time frame	Description
Change in sunlight exposure received	1 year	Exposure to sunlight over 7 consecutive days is measured using polysulphone badges with one badge for weekdays and a second badge for the weekend. Exposure is assessed every 3 months for 1 year.
Change in dietary intake of vitamin D	1 year	Intake of foods containing vitamin D is recorded for a one week period once every 3 months over a period of 1 year and the average daily intake determined.

Countries

United Kingdom

Outcome results