Respiratory symptoms in children living near busy roads and their relationship to vehicular traffic: results of an Italian multicenter study (SIDRIA 2).

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dc.contributor.authorMigliore E
dc.contributor.authorBerti G
dc.contributor.authorGalassi C
dc.contributor.authorPearce N
dc.contributor.authorForastiere F
dc.contributor.authorCalabrese R
dc.contributor.authorArmenio L
dc.contributor.authorBiggeri A
dc.contributor.authorBisanti L
dc.contributor.authorBugiani M
dc.contributor.authorCadum E
dc.contributor.authorChellini E
dc.contributor.authorDell'orco V
dc.contributor.authorGiannella G
dc.contributor.authorSestini P
dc.contributor.authorCorbo G
dc.contributor.authorPistelli R
dc.contributor.authorViegi G
dc.contributor.authorCiccone G
dc.contributor.authorSIDRIA-2 Collaborative Group
dc.date.accessioned2010-10-07T06:51:50Z
dc.date.accessioned2016-03-06T22:26:02Z
dc.date.availableNO_RESTRICTION
dc.date.available2010-10-07T06:51:50Z
dc.date.available2016-03-06T22:26:02Z
dc.date.issued2009-06-18
dc.description.abstractBACKGROUND: Epidemiological studies have provided evidence that exposure to vehicular traffic increases the prevalence of respiratory symptoms and may exacerbate pre-existing asthma in children. Self-reported exposure to road traffic has been questioned as a reliable measurement of exposure to air pollutants. The aim of this study was to investigate whether there were specific effects of cars and trucks traffic on current asthma symptoms (i.e. wheezing) and cough or phlegm, and to examine the validity of self-reported traffic exposure. METHODS: The survey was conducted in 2002 in 12 centers in Northern, Center and Southern Italy, different in size, climate, latitude and level of urbanization. Standardized questionnaires filled in by parents were used to collect information on health outcomes and exposure to traffic among 33,632 6-7 and 13-14 years old children and adolescents. Three questions on traffic exposure were asked: the traffic in the zone of residence, the frequency of truck and of car traffic in the street of residence. The presence of a possible response bias for the self-reported traffic was evaluated using external validation (comparison with measurements of traffic flow in the city of Turin) and internal validations (matching by census block, in the cities of Turin, Milan and Rome). RESULTS: Overall traffic density was weakly associated with asthma symptoms but there was a stronger association with cough or phlegm (high traffic density OR = 1.24; 95% CI: 1.04, 1.49). Car and truck traffic were independently associated with cough or phlegm. The results of the external validation did not support the existence of a reporting bias for the observed associations, for all the self-reported traffic indicators examined. The internal validations showed that the observed association between traffic density in the zone of residence and respiratory symptoms did not appear to be explained by an over reporting of traffic by parents of symptomatic subjects. CONCLUSION: Children living in zones with intense traffic are at higher risk for respiratory effects. Since population characteristics are specific, the results of validation of studies on self-reported traffic exposure can not be generalized.
dc.identifier.citationMigliore, E., Berti, G., Galassi, C., Pearce, N., Forastiere, F., Calabrese, R., et al. (2009). Respiratory symptoms in children living near busy roads and their relationship to vehicular traffic: results of an Italian multicenter study (SIDRIA 2). Environmental Health, 8(27). doi: 2710.1186/1476-069x-8-27
dc.identifier.harvestedMassey_Dark
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1476-069X
dc.language.isoen
dc.publisherBIOMED CENTRAL LTD
dc.relation.isbasedonBioMed Central
dc.relation.isformatofhttp://www.ehjournal.net/content/8/1/27
dc.rights2009 Migliore et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.subjectTraffic
dc.subjectChildren
dc.subjectAsthma
dc.subject.otherFields of Research::320000 Medical and Health Sciences::321200 Public Health and Health Services::321210 Community child health
dc.titleRespiratory symptoms in children living near busy roads and their relationship to vehicular traffic: results of an Italian multicenter study (SIDRIA 2).
dc.typeJournal article
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