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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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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Healthy volunteers | Healthy adolescents aged 12-15 years |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| None - observational study | Other |
|
| Measure | Description | Time Frame |
|---|---|---|
| Serum concentration of 25-hydroxyvitamin D | Approximately every 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| Amount of sunlight exposure received | Exposure to sunlight over 7 consecutive days is measured using polysulphone badges with one badge for weekdays and a second badge for the weekend. | Approx every 3 months |
| Dietary intake of vitamin D |
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Inclusion Criteria:
Exclusion Criteria:
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Schoolchildren in Greater Manchester
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| Name | Affiliation | Role |
|---|---|---|
| Lesley Rhodes, MBBS MD FRCP | University of Manchester | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Salford Royal NHS Foundation Trust | Manchester | M6 8HD | United Kingdom |
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Intake of foods containing vitamin D is recorded for a one week period and the average daily intake determined.
| Approximately every 3 months |