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Incidence of airflow limitation among employees in Norwegian smelters.
MedLine Citation:
PMID:  21360726     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have investigated the association between the incidence of airflow limitation and occupational exposure. The employees (n = 3,924) were investigated annually during five years (n = 16,570) using spirometry. Exposure was classified using job category and a job exposure matrix. Airflow limitation was expressed using two indices: (i) as forced expiratory volume in one second/force vital capacity (FEV(1) /FVC) <0.7 and (ii) lower limit of normal (LLN). The incidence of airflow limitation was 21.2/1000 years(-1) and 15.1/1000 years(-1) using the fixed limit (0.7) and the LLN criterion, respectively. We found a dose-response relationship between the incidence of airflow limitation and tobacco consumption and with job-category in non-smokers. The associations between airflow limitation and covariates were independent of how airflow limitation was defined. The incidence of airflow limitation defined as FEV(l) /FVC <0.7 yielded higher incidence rates of airflow limitation than LLN. We found a significant association between the incidence of airflow limitation and occupational exposure in non-smokers. Am. J. Ind. Med. © 2011 Wiley-Liss, Inc.
Authors:
Vidar Søyseth; Helle Laier Johnsen; Merete Drevvatne Bugge; Siri Merete Hetland; Johny Kongerud
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-28
Journal Detail:
Title:  American journal of industrial medicine     Volume:  -     ISSN:  1097-0274     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-3-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8101110     Medline TA:  Am J Ind Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley-Liss, Inc.
Affiliation:
Department of Medicine, Faculty Division Akershus University Hospital, University of Oslo, Lørenskog, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway. vidar.soyseth@medisin.uio.no.
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