Objectives-To examine whether welding is a risk factor for an accelerated decline in pulmonary function.
Methods-2 Year follow up of pulmonary function and respiratory symptoms among 54 welders and 38 non-welders in eight New Zealand welding sites.
There were no significant differences in age, height, smoking habits, ethnicity, or total time in industrial work between welders and non-welders.
No overall differences were noted in the changes of pulmonary function variables between the two study groups.
However, when the comparison was restricted to smokers, welders had a significantly greater (p=0.02) annual decline (88.8 ml) in FEV, than non-welders, who had a slight non-significant annual increase (34.2 ml).
Also, welders without respiratory protection or local exhaust ventilation while welding had a greater annual decline both in forced vital capacity (FVC) and forced expiratory volume in one second (FEV,) than welders with protection (p=0.001 and 0.04, respectively).
Among welders a significant association was found between the acute across shift change and the annual decline in FEV, Chronic bronchitis was more common among welders (24%) than non-welders (5%). Only one welder (2%) but eight non-welders (21%) reported having asthma.
Conclusions-Welders who smoked and welders working without local exhaust ventilation or respiratory protection have an increased risk of accelerated decline in FEV1.
Mots-clés Pascal : Médecine travail, Soudage, Industrie, Facteur risque, Evaluation, Poumon pathologie, Fonction respiratoire, Toxicité, Homme, Etude longitudinale, Exposition professionnelle, Fumée, Condition travail, Appareil respiratoire pathologie
Mots-clés Pascal anglais : Occupational medicine, Welding, Industry, Risk factor, Evaluation, Lung disease, Lung function, Toxicity, Human, Follow up study, Occupational exposure, Fumes, Working condition, Respiratory disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0233671
Code Inist : 002B03L02. Création : 16/11/1999.