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Association Between Media Alerts of Air Quality Index and Change of Outdoor Activity Among Adult Asthma in Six States, BRFSS, 2005

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Abstract

Media alerts of air quality index (AQI) were designed to inform the public the need to avoid harmful air pollution by changing their outdoor activities. The relationship between AQI media alerts and change in outdoor activities among people with asthma is unknown. Our objective is to examine this relationship. Data were analyzed in a cross-sectional study from 33,888 adults, in six states, who responded to the questions in the 2005 Behavioral Risk Factor Surveillance System (BRFSS) about reductions/changes in outdoor activity. The prevalence of change in outdoor activity due to media alerts was 31% among adults with lifetime asthma and 16% without asthma. The prevalence of outdoor activity change increased to 75% among those with lifetime asthma and to 68% without asthma, when the combined the effects of media alerts and individual perception were examined. The odds of activity change based on the media alerts was 2.30 (Adjusted odds ratio [aOR] = 2.16, 95% Confidence interval [CI]: 1.61, 2.90) among those with lifetime asthma and 1.72 (aO R = 1.72, 95% CI: 1.50, 1.98) without asthma, compared to those unaware of media alerts, after adjustment for demographic variables and covariates. This study shows that awareness of media alerts as well as health professional advice may be associated with reported changes in outdoor activities. Therefore, along with consistent efforts to improve the air quality, government agencies, health professionals, and community leaders should implement measures to effectively inform the public about air quality and educate them to take appropriate actions accordingly.

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Acknowledgments

The authors thank the BRFSS coordinators from Colorado, Florida, Indiana, Kansas, Massachusetts, and Wisconsin and members of the Survey Operation Team in the Behavioral Survey Branch, Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, for their help in collecting the data used in this analysis.

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The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.

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Correspondence to Xiao-Jun Wen.

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Wen, XJ., Balluz, L. & Mokdad, A. Association Between Media Alerts of Air Quality Index and Change of Outdoor Activity Among Adult Asthma in Six States, BRFSS, 2005. J Community Health 34, 40–46 (2009). https://doi.org/10.1007/s10900-008-9126-4

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