25-Hydroxyvitamin D levels among 2-year-old children: findings from the Japan environment and Children's study (JECS)

The study aim was to obtain epidemiological data on vitamin D levels for the pediatric population in Japan. We assessed the prevalence of vitamin D deficiency and insufficiency in 2-year-old Japanese children using data from a large ongoing birth cohort study. Data for analysis was obtained from the...

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Bibliographic Details
Published in:BMC pediatrics 2021-12, Vol.21 (1), p.539-539, Article 539
Main Authors: Yang, Limin, Sato, Miori, Saito-Abe, Mayako, Irahara, Makoto, Nishizato, Minaho, Sasaki, Hatoko, Konishi, Mizuho, Ishitsuka, Kazue, Mezawa, Hidetoshi, Yamamoto-Hanada, Kiwako, Ohya, Yukihiro
Format: Article
Language:English
Subjects:
25-Hydroxyvitamin D
Birth Cohort
Child
Child, Preschool
Children
Children & youth
Cohort
Cohort Studies
Deficiency
Demographic aspects
Female
Girls
Health aspects
Humans
Insufficiency
Japan - epidemiology
Male
Maternal & child health
Medical records
Metabolism
Metabolites
Pediatric research
Pediatrics
Pregnancy
Prevalence
Seasons
Statistics
Toddlers
Vitamin D
Vitamin D - analogs & derivatives
Vitamin D deficiency
Vitamin D Deficiency - epidemiology
Vitamin deficiency
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Summary:The study aim was to obtain epidemiological data on vitamin D levels for the pediatric population in Japan. We assessed the prevalence of vitamin D deficiency and insufficiency in 2-year-old Japanese children using data from a large ongoing birth cohort study. Data for analysis was obtained from the Japan Environment and Children's Study (JECS) and a Sub-Cohort Study (SCS) of JECS. We evaluated the children's serum 25(OH) D levels by 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles, and the rates of vitamin D deficiency or insufficiency. We also presented a weighted prevalence rate for vitamin D deficiency or insufficiency among all children in JECS. After excluding children with missing 25(OH)D2 or 25(OH)D3 data, we analyzed 4655 remaining children, of whom 24.7% (95% CI, 23.5-26.0%) had vitamin D deficiency (
ISSN:1471-2431
1471-2431
DOI:10.1186/s12887-021-03005-3