Traffic pollution is associated with early childhood aeroallergen sensitization.
Ann Allergy Asthma Immunol
; 114(2): 126-33, 2015 Feb.
Article
em En
| MEDLINE
| ID: mdl-25499550
ABSTRACT
BACKGROUND:
No large, prospective, epidemiologic study has investigated the association between diesel exhaust particle (DEP) exposure and early aeroallergen sensitization and allergic rhinitis (AR) at 4 years of age.OBJECTIVE:
To determine how exposure to traffic exhaust during infancy is associated with aeroallergen sensitization and AR at 4 years of age and the predictive utility of the wheal area at 1 to 3 years of age on AR at 4 years of age.METHODS:
Infants born to aeroallergen sensitized parents were evaluated annually with skin prick tests to 15 aeroallergens with measurement of wheal areas. At 4 years of age, AR was defined as at least one positive aeroallergen skin prick test result and the presence of sneezing and a runny nose without a cold or flu. Infant (DEP) exposure was estimated using data from 27 air sampling monitors and a land use regression model.RESULTS:
Complete data were available for 634 children at 4 years of age. Prevalence of AR increased annually from 6.9% to 21.9%. A positive trend was observed for high DEP exposure and aeroallergen sensitization at 2 and 3 years of age (odds ratio, 1.40; 95% confidence interval, 0.97-2.0) and (odds ratio, 1.35; 95% confidence interval, 0.98-1.85) but not with AR. At 2 years of age, every 1-mm(2) increase in the wheal area of timothy and Alternaria significantly increased the odds of AR at 4 years of age. At 3 years of age, every 1-mm(2) increase in the wheal area of fescue, dog, and Penicillium significantly increased the odds of AR at 4 years of age.CONCLUSION:
DEP exposure enhances the risk of early aeroallergen sensitization. Aeroallergen wheal area at 2 and 3 years of age is associated with AR at 4 years of age.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Emissões de Veículos
/
Alérgenos
/
Poluentes Atmosféricos
/
Poluição do Ar
/
Rinite Alérgica
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article