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.

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. - Vitamin D children

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON48435

Enrollment

Registered

2019-10-23

Start date

2020-01-01

Completion date

Unknown

Last updated

2024-04-15

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

Conditions

vitamin D deficiency

Interventions

None listed

Eligibility

Age

2 Years to 11 Years

Inclusion criteria

Inclusion criteria: healthy children where blood is taken for medical reasons

Exclusion criteria

Exclusion criteria: disorders of calcium and bone metabolism, non caucasian

Design outcomes

Primary

Measure	Time frame
Main study parameters/endpoints: The incidence of plasma 25OHD levels below 50 nmol/l in each cohort in both countries in two seasons.	—

Secondary

Measure	Time frame
Secondary study parameter(s) The correlation between Ca, P, alkaline phosphatase, 25OHD and FGF23. Relation between dietary and supplemental intake of Ca and vit D with plasma 25OHD levels.	—

Countries

Netherlands

Outcome results