Chronic bronchitis, work related respiratory symptoms, and pulmonary function in welders in New Zealand.
Objectives-A cross sectional study of respiratory symptoms and lung function in welders was performed at eight New Zealand welding sites : 62 current welders and 75 non-welders participated.
Methods-A questionnaire was administered to record demographic data, smoking habit, and current respiratory symptoms.
Current and previous welding exposures were recorded to calculate a total lifetime welding fume exposure index.
Forced expiratory volume in one second (FEV,), forced vital capacity (FVC), and peak expiratory flow (PEF) were measured before the start of the shift.
There were no significant differences in ethnicity, smoking habits, or years of work experience between welders and non-welders.
Symptoms of chronic bronchitis were more common in current welders (11.3%) than in non-welders (5.0%). Of those workers with a cumulative exposure index to welding fume =10 years, 16.7% reported symptoms of chronic bronchitis compared with 4.7% of those with a cumulative exposure index<4 years (odds ratio (OR) 4.1,95% confidence interval (95% CI) 0.90 to 17.6).
Workers with chronic bronchitis had significantly lower measures of baseline PEF (p=0.008) and FEV1/FVC ratio (p=0.001) than workers without chronic bronchitis.
Multivariate analysis showed that current smoking (OR 9.3,1.0 to 86.9) and total exposure index to welding fumes>10 years (OR 9.5,1.3 to 71.9) were independent risk factors for chronic bronchitis. (...)
Mots-clés Pascal : Soudage, Fumée, Industrie métallurgique, Exposition professionnelle, Médecine travail, Homme, Appareil respiratoire pathologie, Fonction respiratoire, Bronchite, Chronique, Epidémiologie, Nouvelle Zélande, Océanie, Toxicité
Mots-clés Pascal anglais : Welding, Fumes, Metallurgical industry, Occupational exposure, Occupational medicine, Human, Respiratory disease, Lung function, Bronchitis, Chronic, Epidemiology, New Zealand, Oceania, Toxicity
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0163546
Code Inist : 002B03L03. Création : 21/07/1998.