Vitamin A and D Intake in Pregnancy, Infant Supplementation and Asthma Development

CompletedOBSERVATIONAL
Enrollment

61,676

Participants

Timeline

Start Date

January 31, 1999

Primary Completion Date

June 30, 2015

Study Completion Date

June 30, 2015

Conditions
Asthma in Children
Interventions
OTHER

Maternal vitamin A and D intake during pregnancy

Dietary exposures during pregnancy and infant supplement use were assessed from maternal questionnaire report

All Listed Sponsors
collaborator

National Institute of Environmental Health Sciences (NIEHS)

NIH

lead

Norwegian Institute of Public Health

OTHER_GOV

NCT03197233 - Vitamin A and D Intake in Pregnancy, Infant Supplementation and Asthma Development | Biotech Hunter | Biotech Hunter