We conducted a cohort analysis of longitudinal changes in pulmonary function test values in male grain elevator workers in five regions of Canada over a 6-yr period involving three observations.
Pulmonary function tests were obtained approximately each 3 yr during an observation interval called a « cycle : » The periods of the cycles were 1978-81 (Cycle I), 1981-84 (Cycle II), and 1984-87 (Cycle III), respectively.
Data on respiratory symptoms and pulmonary function tests were collected on the same 881 workers in Cycles I and II (mean ages±SE : 37.0±0.48 yr at Cycle I), on the same 1,294 workers in Cycles I, II, and III (34.6±0.34 yr at Cycle I), and on the same 1,021 workers in Cycles II and III (33.9±0.38 yr at Cycle II) for a total of 3.196 workers with two or more observations over the 6-yr period.
Mots-clés Pascal : Bronchopneumopathie obstructive, Graine, Inhalation, Etude longitudinale, Complication, Exploration, Homme, Appareil respiratoire pathologie, Exposition professionnelle, Maladie professionnelle
Mots-clés Pascal anglais : Obstructive pulmonary disease, Seeds, Inhalation, Follow up study, Complication, Exploration, Human, Respiratory disease, Occupational exposure, Occupational disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0217192
Code Inist : 002B03L03. Création : 09/06/1995.