Abstract
OBJECTIVE: To examine the use of vitamin D supplements during infancy among the participants in an international infant feeding trial.
DESIGN: Longitudinal study.
SETTING: Information about vitamin D supplementation was collected through a validated FFQ at the age of 2 weeks and monthly between the ages of 1 month and 6 months.
SUBJECTS: Infants (n 2159) with a biological family member affected by type 1 diabetes and with increased human leucocyte antigen-conferred susceptibility to type 1 diabetes from twelve European countries, the USA, Canada and Australia.
RESULTS: Daily use of vitamin D supplements was common during the first 6 months of life in Northern and Central Europe (>80% of the infants), with somewhat lower rates observed in Southern Europe (> 60%). In Canada, vitamin D supplementation was more common among exclusively breast-fed than other infants (e.g., 71% v. 44% at 6 months of age). Less than 2% of infants in the U.S.A. and Australia received any vitamin D supplementation. Higher gestational age, older maternal age and longer maternal education were study-wide associated with greater use of vitamin D supplements.
CONCLUSIONS: Most of the infants received vitamin D supplements during the first 6 months of life in the European countries, whereas in Canada only half and in the U.S.A. and Australia very few were given supplementation.
Originalsprog | Engelsk |
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Tidsskrift | Public Health Nutrition |
Vol/bind | 17 |
Udgave nummer | 4 |
Sider (fra-til) | 810-22 |
Antal sider | 13 |
ISSN | 1368-9800 |
DOI | |
Status | Udgivet - apr. 2014 |