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Respiratory medicine v.132, 2017년, pp.1 - 8   SCI SCIE
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City housing atmospheric pollutant impact on emergency visit for asthma: A classification and regression tree approach

Mazenq, Julie    (Pediatric Pulmonology Department, Timone Children's Hospital, Aix-Marseille University, Marseille, France   ); Dubus, Jean-Christophe    (Pediatric Pulmonology Department, Timone Children's Hospital, Aix-Marseille University, Marseille, France   ); Gaudart, Jean    (Aix Marseille University, IRD, INSERM, SESSTIM, 13005 Marseille, France   ); Charpin, Denis    (Pulmonology and Allergology Department, Hospital Nord, Marseille, France   ); Viudes, Gilles    (Regional Emergencies Observatory, Provence-Alpes-Cote d'Azur Region (ORU PACA), France   ); Noel, Guilhem    (Regional Emergencies Observatory, Provence-Alpes-Cote d'Azur Region (ORU PACA), France  );
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    Abstract Introduction Particulate matter, nitrogen dioxide (NO 2 ) and ozone are recognized as the three pollutants that most significantly affect human health. Asthma is a multifactorial disease. However, the place of residence has rarely been investigated. We compared the impact of air pollution, measured near patients' homes, on emergency department (ED) visits for asthma or trauma (controls) within the Provence-Alpes-COte-d’Azur region. Methods Variables were selected using classification and regression trees on asthmatic and control population, 3–99 years, visiting ED from January 1 to December 31, 2013. Then in a nested case control study, randomization was based on the day of ED visit and on defined age groups. Pollution, meteorological, pollens and viral data measured that day were linked to the patient's ZIP code. Results A total of 794,884 visits were reported including 6250 for asthma and 278,192 for trauma. Factors associated with an excess risk of emergency visit for asthma included short-term exposure to NO 2 , female gender, high viral load and a combination of low temperature and high humidity. Conclusion Short-term exposures to high NO 2 concentrations, as assessed close to the homes of the patients, were significantly associated with asthma-related ED visits in children and adults. Highlights “What is new?” Keys findings: High concentration of NO 2 , measured near patients' homes, increased the risk for emergency department visit for asthma. What is known: A relationship between short-term exposure to air pollution and emergency room visits for asthma has been demonstrated. What does this add: Our study confirms the excess risk of asthma emergency visits linked to air pollution close to where the patients live. What is the implication: Emissions of NO 2 are linked to road traffic. Preventative strategies should be implemented to reduce and vehicles emissions.


  • 주제어

    Asthma .   Air pollution .   Children .   Adults.  

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