Assessment of respiratory symptoms and asthma prevalence in a U.S.-Mexico border region

George A. Stephen, Cheryl McRill, Maura D. Mack, Mary Kay O'Rourke, Timothy J. Flood, Michael D. Lebowitz

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The authors studied children who were 10-12 yr of age and who resided in sister cities in a U.S.-Mexico border region to determine the prevalence of asthma and respiratory symptoms. The relationship of symptoms to ambient levels of particulate matter less than 10 μm in diameter (PM10), and to several indoor environmental conditions, was assessed. The study was conducted in the border cities of Ambos Nogales (Nogales, Arizona [United States], and Nogales, Sonora [Mexico]). At the beginning of the 11-wk study, during the autumn of 1996, 631 students and their parents completed baseline questionnaires. While in school, the children completed daily symptom diaries and daily peak expiratory flow maneuvers. PM10 values and daily temperatures were also measured. The authors found that the prevalence of self-reported asthma among 5th-grade students was comparable on both sides of the border (i.e., 7.6% on the Arizona side and 6.9% on the Sonora side). Wheezing was a frequent complaint (29.5-35.6%), as was cough (16.8-29.6%). Smoking in the home was common on both sides of the border, and it was associated with a greater occurrence of self-reported asthma and respiratory complaints. Increased respiratory symptoms were also associated with increased ambient PM10 levels. The prevalence of respiratory symptoms such as wheezing and frequent cough among all children in this study, combined with the limitations inherent in self-reporting, suggest that asthma may actually be more prevalent than has been previously reported.

Original languageEnglish (US)
Pages (from-to)156-162
Number of pages7
JournalArchives of Environmental Health
Volume58
Issue number3
DOIs
StatePublished - Mar 2003

Fingerprint

Symptom Assessment
border region
asthma
Mexico
Asthma
Students
Particulate Matter
Respiratory Sounds
Cough
student
peak flow
smoking
Parents
Smoking
particulate matter
Temperature
autumn
environmental conditions
border
temperature

Keywords

  • Air pollution
  • Asthma
  • Hispanic
  • Smoking
  • Wheezing

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Public Health, Environmental and Occupational Health

Cite this

Assessment of respiratory symptoms and asthma prevalence in a U.S.-Mexico border region. / Stephen, George A.; McRill, Cheryl; Mack, Maura D.; O'Rourke, Mary Kay; Flood, Timothy J.; Lebowitz, Michael D.

In: Archives of Environmental Health, Vol. 58, No. 3, 03.2003, p. 156-162.

Research output: Contribution to journalArticle

Stephen, George A. ; McRill, Cheryl ; Mack, Maura D. ; O'Rourke, Mary Kay ; Flood, Timothy J. ; Lebowitz, Michael D. / Assessment of respiratory symptoms and asthma prevalence in a U.S.-Mexico border region. In: Archives of Environmental Health. 2003 ; Vol. 58, No. 3. pp. 156-162.
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