Vitamin D levels in relation to other calcium and phosphate regulating hormones in children in Murmansk and Groningen. Effect of summer and winter. A pilot study.

Completed

• Conditions: vitamin D deficiency; 10013296

• Registration Number: NL-OMON48435
• Lead Sponsor: niversitair Medisch Centrum Groningen

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 15 April 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 60

Inclusion Criteria

healthy children where blood is taken for medical reasons

Exclusion Criteria

disorders of calcium and bone metabolism, non caucasian

Study & Design

• Study Type: Observational invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Main study parameters/endpoints: The incidence of plasma 25OHD levels below 50<br /><br>nmol/l in each cohort in both countries in two seasons.</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>Secondary study parameter(s)<br /><br>The correlation between Ca, P, alkaline phosphatase, 25OHD and FGF23.<br /><br>Relation between dietary and supplemental intake of Ca and vit D with plasma<br /><br>25OHD levels. </p><br>