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Article: Byssinosis in Guangzhou, China

TitleByssinosis in Guangzhou, China
Authors
Keywordsbyssinosis
cotton dust
Issue Date1995
PublisherB M J Publishing Group. The Journal's web site is located at http://www.occenvmed.com
Citation
Occupational And Environmental Medicine, 1995, v. 52 n. 4, p. 268-272 How to Cite?
AbstractObjectives - To study the prevalence of byssinosis and other respiratory abnormalities in workers exposed to cotton dust in Guangzhou in two factories that processed purely cotton. Methods - All the 1320 workers exposed were included. The controls were 1306 workers with no history of occupational dust exposure. Total dust and inhalable dust were measured by Chinese total dust sampler and American vertical elutriator respectively. A World Health Organisation questionnaire was used. Forced vital capacity (FVC) and forced expiratory volume in one second (FEV 1) were measured by a Vitalograph spirometer. Results - The median inhalable dust concentrations ranged from 0.41 to 1.51 mg/m 3 and median total dust concentrations from 3.04 to 12.32 mg/m. The prevalence of respiratory abnormalities in the cotton workers were (a) typical Monday symptoms 9.0%; (b) FEV 1 fall by ≥ 5% after a shift 16.8%; (c) FEV 1 fall by ≥ 10% after a shift 4.2%; (d) FEV'q < 80% predicted 6.1%; (e) FEV 1/FVC < 75% 4.0%; (f) cough or phlegm 18.2%; (g) chronic bronchitis 10-9%; and (h) byssinosis, defined by (a) plus (b) 1.7%. With the exception of (d), most of the prevalences increased with increasing age, duration of exposure, and cumulative inhalable dust exposure. No increasing trends of respiratory abnormalities were found for current total dust, inhalable dust, and cumulative total dust concentrations. Compared with controls, after adjustment for sex and smoking, with the exception of (d), all the pooled relative risks of respiratory abnormalities were raised for cotton exposure. Conclusions - It is concluded that cumulative inhalable cotton is likely to be the cause of byssinotic symptoms, acute lung function decrements, cough, or phlegm, and chronic bronchitis.
Persistent Identifierhttp://hdl.handle.net/10722/43560
ISSN
2014 Impact Factor: 3.267
2014 SCImago Journal Rankings: 1.401
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJiang, CQen_HK
dc.contributor.authorLam, THen_HK
dc.contributor.authorKong, Cen_HK
dc.contributor.authorCui, CAen_HK
dc.contributor.authorHuang, HKen_HK
dc.contributor.authorChen, DCen_HK
dc.contributor.authorHe, JMen_HK
dc.contributor.authorXian, PZen_HK
dc.contributor.authorChen, YHen_HK
dc.date.accessioned2007-03-23T04:49:03Z-
dc.date.available2007-03-23T04:49:03Z-
dc.date.issued1995en_HK
dc.identifier.citationOccupational And Environmental Medicine, 1995, v. 52 n. 4, p. 268-272en_HK
dc.identifier.issn1351-0711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43560-
dc.description.abstractObjectives - To study the prevalence of byssinosis and other respiratory abnormalities in workers exposed to cotton dust in Guangzhou in two factories that processed purely cotton. Methods - All the 1320 workers exposed were included. The controls were 1306 workers with no history of occupational dust exposure. Total dust and inhalable dust were measured by Chinese total dust sampler and American vertical elutriator respectively. A World Health Organisation questionnaire was used. Forced vital capacity (FVC) and forced expiratory volume in one second (FEV 1) were measured by a Vitalograph spirometer. Results - The median inhalable dust concentrations ranged from 0.41 to 1.51 mg/m 3 and median total dust concentrations from 3.04 to 12.32 mg/m. The prevalence of respiratory abnormalities in the cotton workers were (a) typical Monday symptoms 9.0%; (b) FEV 1 fall by ≥ 5% after a shift 16.8%; (c) FEV 1 fall by ≥ 10% after a shift 4.2%; (d) FEV'q < 80% predicted 6.1%; (e) FEV 1/FVC < 75% 4.0%; (f) cough or phlegm 18.2%; (g) chronic bronchitis 10-9%; and (h) byssinosis, defined by (a) plus (b) 1.7%. With the exception of (d), most of the prevalences increased with increasing age, duration of exposure, and cumulative inhalable dust exposure. No increasing trends of respiratory abnormalities were found for current total dust, inhalable dust, and cumulative total dust concentrations. Compared with controls, after adjustment for sex and smoking, with the exception of (d), all the pooled relative risks of respiratory abnormalities were raised for cotton exposure. Conclusions - It is concluded that cumulative inhalable cotton is likely to be the cause of byssinotic symptoms, acute lung function decrements, cough, or phlegm, and chronic bronchitis.en_HK
dc.format.extent430569 bytes-
dc.format.extent2360 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherB M J Publishing Group. The Journal's web site is located at http://www.occenvmed.comen_HK
dc.relation.ispartofOccupational and Environmental Medicineen_HK
dc.rightsOccupational and Environmental Medicine. Copyright © B M J Publishing Group.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectbyssinosisen_HK
dc.subjectcotton dusten_HK
dc.subject.meshByssinosis - epidemiology - etiologyen_HK
dc.subject.meshDust - adverse effects - analysisen_HK
dc.subject.meshGossypiumen_HK
dc.subject.meshOccupational exposureen_HK
dc.subject.meshRespiration disorders - epidemiology - etiologyen_HK
dc.titleByssinosis in Guangzhou, Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1351-0711&volume=52&issue=4&spage=268&epage=272&date=1995&atitle=Byssinosis+in+Guangzhou,+Chinaen_HK
dc.identifier.emailLam, TH:hrmrlth@hkucc.hku.hken_HK
dc.identifier.authorityLam, TH=rp00326en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.pmid7795743-
dc.identifier.pmcidPMC1128206-
dc.identifier.scopuseid_2-s2.0-0028950971en_HK
dc.identifier.hkuros1350-
dc.identifier.volume52en_HK
dc.identifier.issue4en_HK
dc.identifier.spage268en_HK
dc.identifier.epage272en_HK
dc.identifier.isiWOS:A1995QT35000009-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridJiang, CQ=10639500500en_HK
dc.identifier.scopusauthoridLam, TH=7202522876en_HK
dc.identifier.scopusauthoridKong, C=35603489200en_HK
dc.identifier.scopusauthoridCui, CA=7201920200en_HK
dc.identifier.scopusauthoridHuang, HK=7405615002en_HK
dc.identifier.scopusauthoridChen, DC=7405450652en_HK
dc.identifier.scopusauthoridHe, JM=7404983600en_HK
dc.identifier.scopusauthoridXian, PZ=6508381056en_HK
dc.identifier.scopusauthoridChen, YH=8138124300en_HK

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