Respiratory infections in infants: interaction of parental allergy, child care, and siblings-- The PIAMA study
OBJECTIVE: To investigate the association between contacts with other children and the development of respiratory infections in the first year of life in children with or without genetic predisposition for allergy. METHODS: Children (n = 4146) who participate in a prospective birth cohort study (Prevention and Incidence of Asthma and Mite Allergy study) were investigated. Questionnaires were used to obtain information on doctor-diagnosed upper respiratory tract infection (URTI) and lower respiratory tract infection (LRTI), child care attendance, having siblings, family history of allergic disease, and various potential confounders. RESULTS: Child care attendance in the first year of life was associated with doctor-diagnosed URTI (adjusted odds ratio [AOR]: 2.7; 95% confidence interval [CI]: 2.1-3.4 for large child care facility vs no child care) and doctor-diagnosed LRTI (AOR: 5.6; 95% CI: 3.9-7.9). Having siblings was associated with doctor-diagnosed LRTI (AOR: 2.6; 95% CI: 2.0-3.4). In addition, children who have allergic parents and attend child care or have older siblings have a higher risk of developing doctor-diagnosed LRTI than do children who have nonallergic parents. CONCLUSIONS: Child care attendance or having siblings increases the risk of developing doctor-diagnosed LRTI in the first year of life to a greater extent in allergy-prone children than in children who are not allergy prone.
|Keywords||*Disease Transmission, Horizontal, *Interpersonal Relations, Adult, Child Care/*statistics & numerical data, Child Day Care Centers/statistics & numerical data, Child of Impaired Parents/statistics & numerical data, Child, Preschool, Cohort Studies, Female, Genetic Predisposition to Disease, Humans, Hypersensitivity/*epidemiology/genetics, Incidence, Infant, Infant, Newborn, Male, Netherlands/epidemiology, Prospective Studies, Research Support, Non-U.S. Gov't, Respiratory Tract Infections/*epidemiology/etiology/transmission, Risk Factors, Sibling Relations|
Koopman, L.P., Smit, H.A., Heijnen, M.L., Wijga, A., van Strien, R.T., Kerkhof, M., … Neijens, H.J.. (2001). Respiratory infections in infants: interaction of parental allergy, child care, and siblings-- The PIAMA study. Pediatrics (English Edition). Retrieved from http://hdl.handle.net/1765/9766