期刊
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
卷 136, 期 3, 页码 595-+出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.jaci.2015.02.007
关键词
Urban; rural; African American; asthma; prevalence; inner-city; high school students; youth
资金
- National Heart, Lung, and Blood Institute of the National Institutes of Health [R01HL092412, R01HL06897]
- Fund for Henry Ford Hospital
Background: The high prevalence of asthma among urban African American (AA) populations has attracted research attention, whereas the prevalence among rural AA populations is poorly documented. Objective: We sought to compare the prevalence of asthma among AA youth in rural Georgia and urban Detroit, Michigan. Methods: The prevalence of asthma was compared in population-based samples of 7297 youth attending Detroit public high schools and in 2523 youth attending public high schools in rural Georgia. Current asthma was defined as a physician diagnosis and symptoms in the previous 12 months. Undiagnosed asthma was defined as multiple respiratory symptoms in the previous 12 months without a physician diagnosis. Results: In Detroit, 6994 (95.8%) youth were AA compared with 1514 (60.0%) in Georgia. Average population density in high school postal codes was 5628 people/mile(2) in Detroit and 45.1 people/mile(2) in Georgia. The percentages of poverty and of students qualifying for free or reduced lunches were similar in both areas. The prevalence of current diagnosed asthma among AA youth in Detroit and Georgia was similar: 15.0% (95% CI, 14.1-15.8) and 13.7% (95% CI, 12.0-17.1) (P = .22), respectively. The prevalence of undiagnosed asthma in AA youth was 8.0% in Detroit and 7.5% in Georgia (P = .56). Asthma symptoms were reported more frequently among those with diagnosed asthma in Detroit, whereas those with undiagnosed asthma in Georgia reported more symptoms. Conclusions: Among AA youth living in similar socioeconomic circumstances, asthma prevalence is as high in rural Georgia as it is in urban Detroit, suggesting that urban residence is not an asthma risk factor.
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