Evidence of a significant vitamin D deficiency among 9-13-year-old Polish children: results of a multicentre study.

ABSTRACT:

Purpose

To evaluate the extent to which the population of Polish preadolescents is vitamin D deficient and to assess seasonal variations in vitamin D status.

Participants and methods

A total of 720 healthy children aged 9-13 years (409 girls, 311 boys) residing in 6 representative geographical locations in Poland were studied. A parental-assisted questionnaire provided data on nutritional habits, vitamin D supplements and sun exposure. Serum concentration of 25-hydroxyvitamin was determined twice, after the winter in March and after the summer in October.

Results

In March, vitamin D deficiency (25-50 nmol/L) was found in 64%, and severe deficiency (< 25 nmol/L) in 20.2% of children. In October, the deficiency and severe deficiency were still noticed in 25.9 and 0.1% o

SUBMITTER: Chlebna-Sokol D 

PROVIDER: S-EPMC6647701 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature