Abstract

The effects of smoking habits, socio-occupational factors and respiratory symptoms in the development of airflow obstruction have been studied in a working population of 575 men aged 30-54 in 1960 and surveyed in 1960 and 1972. On average, FEV1 decreased by 47 ml/annum. Apart from FEV1 level, which reflects loss since the beginning of adult life, three factors were independently related to FEV1 slope: tobacco consumption, occupational exposure and social class. The decrease of FEV1 with smoking was dose related and decelerated among those who stopped smoking. This follow-up study ruled against phlegm as a causal factor of early stage airflow obstruction, although its role is not excluded at later stages.

Keywords

MedicinePhlegmDemographySpirometryPopulationEnvironmental healthGerontologyInternal medicineAsthmaPathology

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Publication Info

Year
1979
Type
article
Volume
8
Issue
3
Pages
201-212
Citations
120
Access
Closed

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Cite This

F. Kauffmann, D Drouet, J Lellouch et al. (1979). Twelve Years Spirometric Changes Among Paris Area Workers. International Journal of Epidemiology , 8 (3) , 201-212. https://doi.org/10.1093/ije/8.3.201

Identifiers

DOI
10.1093/ije/8.3.201