Risk of Childhood Asthma in Relation to the Timing of Early Child Care Exposures - 07/08/11
, James A. Blackman, MD, MPH b, Peter W. Heymann, MD b
Reprint requests: Matthew J. Gurka, PhD, Division of Biostatistics and Epidemiology, Department of Public Health Sciences, University of Virginia School of Medicine, PO Box 800717, Charlottesville, VA 22908-0717.Abstract |
Objective |
To examine whether early child care exposure influences the risk for development of asthma.
Study design |
Longitudinal data from 939 children and their families from the National Institute of Child Health and Development Study of Early Child Care and Youth Development were analyzed. Exposure to other children in the primary child care setting as an infant (before 15 months) and as a toddler (16-36 months) were assessed as risk factors for persistent or late-onset asthma by age 15 via logistic regression.
Results |
The number of children in the child-care environment when the child was a toddler was significantly associated with odds of asthma, even after adjusting for respiratory illnesses and other risk factors (P < .05). The fewer the children exposed to as toddlers, the higher the probability of persistent or late-onset asthma by age 15.
Conclusions |
This study supports the theory of a protective effect of exposure to other children at an early age, especially as a toddler, on the risk of asthma. This effect appears to be independent of the number of reported respiratory tract illnesses, suggesting that other protective mechanisms related to the number of children in the child care environment may be involved.
Le texte complet de cet article est disponible en PDF.Mots-clés : NICHD, SECCYD
Plan
| Funded by NICHD grant R03-HD055298. The authors declare no potential, perceived, or real conflicts of interest. |
Vol 155 - N° 6
P. 781 - décembre 2009 Retour au numéro
Article précédent
- Update on “The Choking Game”
- Thomas A. Andrew, Andrew Macnab, Patricia Russell
- Continuity of Prescribers of Short-Acting Beta Agonists among Children with Asthma
- Kevin J. Dombkowski, Stephanie Roahen Harrison, Lisa M. Cohn, Toby C. Lewis, Sarah J. Clark
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?