Author:
Ranzi Andrea,Freni Sterrantino Anna,Forastiere Francesco,Sartini Claudio,Casale Giovanna,Cavallini Rino,De Togni Aldo,Gallo Lorenza,Lauriola Paolo
Abstract
<p>The Po Valley (Northern Italy) has elevated levels of air-pollution due to various sources of pollution and adverse weather conditions. This study evaluates the short-term effects of exposure to particulate matter with a diameter of 10 microns or less (PM<sub>10</sub>) on asthma symptoms in school-aged children. An initial cross-sectional survey was conducted in the area to estimate asthma prevalence in children. Out of a total of 250 asthmatic children identified by the study, 69 agreed to participate in a panel study. The PM<sub>10</sub> exposure assessment was based on a combination of geographic and environmental measurements leading to a focus on three different areas, each characterised by its own daily PM<sub>10</sub> level. Participants were monitored daily for respiratory symptoms for eight weeks (January-March 2006). We assessed the relationship between daily PM<sub>10</sub> exposure and occurrence of asthma symptoms with a generalised linear model based on a total of 3864 person-days of observation. Exposure to PM<sub>10</sub> per m<sup>3</sup> was found to be particularly associated with cough (OR=1.03, CI 95% 0.99; 1.08) and phlegm (OR=1.05, CI 95% 1.00; 1.10). In the most polluted area, exposure to PM10 was also associated with wheezing (OR=1.18, CI 95% 1.02; 1.37).</p>
Subject
Health Policy,Geography, Planning and Development,Health(social science),Medicine (miscellaneous)
Cited by
8 articles.
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