Impaired lung function in individuals chronically exposed to biomass combustion

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dc.contributorSistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSP
dc.contributor.authorSILVA, Luiz Fernando Ferraz da
dc.contributor.authorSALDIVA, Silvia Regina Dias Medici
dc.contributor.authorSALDIVA, Paulo Hilario Nascimento
dc.contributor.authorDOLHNIKOFF, Marisa
dc.contributor.groupauthorBandeira Cient Project
dc.date.accessioned2013-07-30T15:15:06Z
dc.date.available2013-07-30T15:15:06Z
dc.date.issued2012
dc.description.abstractBackground: The use of biomass for cooking and heating is considered an important factor associated with respiratory diseases. However, few studies evaluate the amount of particulate matter less than 2.5 mu in diameter (PM2.5), symptoms and lung function in the same population. Objectives: To evaluate the respiratory effects of biomass combustion and compare the results with those of individuals from the same community in Brazil using liquefied petroleum gas (Gas). Methods: 1402 individuals in 260 residences were divided into three groups according to exposure (Gas, Indoor-Biomass, Outside-Biomass). Respiratory symptoms were assessed using questionnaires. Reflectance of paper filters was used to assess particulate matter exposure. In 48 residences the amount of PM2.5 was also quantified. Pulmonary function tests were performed in 120 individuals. Results: Reflectance index correlated directly with PM2.5 (r=0.92) and was used to estimate exposure (ePM2.5). There was a significant increase in ePM2.5 in Indoor-Biomass and Outside-Biomass, compared to Gas. There was a significantly increased odds ratio (OR) for cough, wheezing and dyspnea in adults exposed to Indoor-Biomass (OR=2.93, 2.33, 2.59, respectively) and Outside-Biomass (OR=1.78, 1.78, 1.80, respectively) compared to Gas. Pulmonary function tests revealed both Non-Smoker-Biomass and Smoker-Gas individuals to have decreased %predicted-forced expiratory volume in the first second (FEV1) and FEV1/forced vital capacity (FVC) as compared to Non-Smoker-Gas. Pulmonary function tests data was inversely correlated with duration and ePM2.5. The prevalence of airway obstruction was 20% in both Non-Smoker-Biomass and Smoker-Gas subjects. Conclusion: Chronic exposure to biomass combustion is associated with increased prevalence of respiratory symptoms, reduced lung function and development of chronic obstructive pulmonary disease. These effects are associated with the duration and magnitude of exposure and are exacerbated by tobacco smoke.
dc.description.indexMEDLINE
dc.description.sponsorshipFAPESP
dc.description.sponsorship[FMUSP-HC/LIMs]
dc.description.sponsorshipCNPq
dc.identifier.citationENVIRONMENTAL RESEARCH, v.112, p.111-117, 2012
dc.identifier.doi10.1016/j.envres.2011.10.012
dc.identifier.issn0013-9351
dc.identifier.urihttps://observatorio.fm.usp.br/handle/OPI/1007
dc.language.isoeng
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE
dc.relation.ispartofEnvironmental Research
dc.rightsrestrictedAccess
dc.rights.holderCopyright ACADEMIC PRESS INC ELSEVIER SCIENCE
dc.subjectBiomass
dc.subjectLung function
dc.subjectChronic obstructive pulmonary disease
dc.subjectParticulate matter
dc.subject.otherindoor air-pollution
dc.subject.otherrespiratory symptoms
dc.subject.otherdeveloping-countries
dc.subject.otherpulmonary-disease
dc.subject.otherpassive smoking
dc.subject.othermexican women
dc.subject.otherwood smoke
dc.subject.otherchildren
dc.subject.otherhealth
dc.subject.otherrisk
dc.subject.wosEnvironmental Sciences
dc.subject.wosPublic, Environmental & Occupational Health
dc.titleImpaired lung function in individuals chronically exposed to biomass combustion
dc.typearticle
dc.type.categoryoriginal article
dc.type.versionpublishedVersion
dspace.entity.typePublication
hcfmusp.author.externalSALDIVA, Silvia Regina Dias Medici:State Hlth Secretariat, Hlth Inst, Sao Paulo, Brazil
hcfmusp.citation.scopus52
hcfmusp.contributor.author-fmusphcLUIZ FERNANDO FERRAZ DA SILVA
hcfmusp.contributor.author-fmusphcPAULO HILARIO NASCIMENTO SALDIVA
hcfmusp.contributor.author-fmusphcMARISA DOLHNIKOFF
hcfmusp.description.beginpage111
hcfmusp.description.endpage117
hcfmusp.description.volume112
hcfmusp.lim.ref2012
hcfmusp.origemWOS
hcfmusp.origem.pubmed22136759
hcfmusp.origem.scopus2-s2.0-84856229474
hcfmusp.origem.wosWOS:000299804800014
hcfmusp.publisher.citySAN DIEGO
hcfmusp.publisher.countryUSA
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hcfmusp.remissive.sponsorshipCNPq
hcfmusp.remissive.sponsorshipFAPESP
hcfmusp.remissive.sponsorshipFMUSP-HC
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