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J Allergy Clin Immunol. 2005 Jul;116(1):42-8.

Associations of place of birth with asthma and wheezing in Mexican American children.

Author information

1
Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, IL 60612-7260, USA. Keldei1@uic.edu

Abstract

BACKGROUND:

There are wide global variations in the prevalence of asthma and wheezing.

OBJECTIVES:

We examined the associations of place of birth with doctor-diagnosed asthma, wheezing in the past 12 months, and other allergic conditions in Mexican American children.

METHODS:

The study used data on 4121 Mexican American children age 2 months to 16 years who participated in the Third National Health and Nutrition Examination Survey.

RESULTS:

The risk of asthma was associated with being born in the United States after adjusting for sex, age, history of ear infection, and having a regular place for health care (odds ratio, 2.19; 95% CI, 1.09-4.40). Among children with no previous history of ear infection, US-born children were more likely to report wheezing in the past 12 months than their peers born in Mexico after controlling for confounding variables (odds ratio, 2.05; 95% CI, 1.09-3.87). Mexican American children born in the United States were more likely to have positive skin reaction to cat, house mite, Alternaria alternata , peanut, Bermuda grass, and short ragweed but were less likely to have a positive skin test to German cockroaches after adjusting for sex, age, ear infection, having a regular place for health care, and area of residence.

CONCLUSION:

Our study indicated significant associations of place of birth with respiratory symptoms and allergic conditions in Mexican American children. These findings highlight the need for further studies to examine environmental factors that change by migration and explain the observed differential in the risk of asthma or wheezing.

PMID:
15990771
DOI:
10.1016/j.jaci.2005.03.041
[Indexed for MEDLINE]
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