Document Detail

Respiratory symptoms, across-shift lung function changes and lifetime exposures of welders in New Zealand.
MedLine Citation:
PMID:  9403465     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The possibility was investigated that exposure to welding fumes causes an acute decrease in pulmonary function. METHODS: Changes in the pulmonary function of 62 current welders and 75 nonwelders at the same sites and the relationship with work-related symptoms were recorded. RESULTS: Work-related cough was reported by 22.6% of the current welders and 6.7% of the nonwelders [odds ratio (OR) 4.1, 95% confidence interval (95% CI) 1.5-11.5], and the respective figures for at least 1 work-related symptom were 30.7% and 16.0% (OR 2.3, 95% CI 1.0-5.2). The groups' preshift lung function did not differ. The mean percentage change from the base-line value of the forced expiratory volume in 1 s (FEV1.0) after 15 minutes of work was -2.8% (range -29.3% to +20.9%) for the current welders and +1.0% (range -20.7% to +22.6%) for the nonwelders (P = 0.01). A multivariate analysis identified current welding as the most significant risk factor for a decrease of at least 5% in FEV1.0 after 15 minutes, the risk being greater for those with no local exhaust ventilation (OR 22.4, 95% CI 4.5-113.4) than for those with personal protection only (OR 16.0, 95% CI 2.1-122.9) and those with local exhaust ventilation (OR 2.8, 95% CI 0.2-41.2) or passive exposure only (OR 2.0, 95% CI 0.5-8.8). CONCLUSIONS: An acute decrease in FEV1.0 in relation to work is more prevalent among welders than among nonwelders, and is more common among welders without local exhaust ventilation than among those with it.
D Fishwick; L M Bradshaw; T Slater; N Pearce
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian journal of work, environment & health     Volume:  23     ISSN:  0355-3140     ISO Abbreviation:  Scand J Work Environ Health     Publication Date:  1997 Oct 
Date Detail:
Created Date:  1998-01-15     Completed Date:  1998-01-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7511540     Medline TA:  Scand J Work Environ Health     Country:  FINLAND    
Other Details:
Languages:  eng     Pagination:  351-8     Citation Subset:  IM    
Wellington Asthma Research Group, Department of Medicine, Wellington School of Medicine, New Zealand.
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MeSH Terms
Air Pollutants, Occupational / adverse effects*
Cross-Sectional Studies
Forced Expiratory Volume* / drug effects
Lung Diseases / epidemiology,  etiology*
Middle Aged
Multivariate Analysis
New Zealand / epidemiology
Occupational Exposure / adverse effects*,  statistics & numerical data
Risk Factors
Smoking / adverse effects,  epidemiology
Work Schedule Tolerance*
Reg. No./Substance:
0/Air Pollutants, Occupational

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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