Summary
We analyzed the relationship between incidence rates of chronic respiratory symptoms over 13 years and occupational exposure during the first five years of follow-up. The study group contained 1132 males and 1598 females, 19 to 60 years of age, randomly selected from residents of Cracow, Poland. The data was collected in three surveys conducted in 1968, five and 13 years later. Prolonged occupational exposure (i.e. reported in the initial survey and 5 years later) to dusts doubled the odds for the appearance of chronic phlegm and attacks of breathlessness in all men, and of chronic bronchitis in men aged 41 to 50, initially free of the symptom. In women, this exposure doubled the odds for new chronic cough and for chronic bronchitis. Prolonged exposure to chemicals doubled the incidence rates of attacks of breathlessness and dyspnea in all women and of chronic bronchitis in women with the lowest level of education. Prolonged work in variable temperatures doubled the risk of wheeze in women. The effects of discontinuation or start of exposure during the initial 5 years of the study were also seen on the incidence rates of the symptoms but were less pronounced. The detected effects of occupational exposure were not modified by cigarette smoking or living in areas of the city with various levels of air pollution. This longitudinal analysis confirms the results of cross-sectional studies which have indicated deleterious effects of even moderate occupational exposures on respiratory symptoms.
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Becklake MR (1985) Chronic airflow limitation: its relationship to work in dusty occupations. Chest 88:605–617
Bishop YMM, Fienberg SE, Holland PW (1975) Discrete multivariate analysis: theory and practice. MIT Press, Cambridge
Bond GG, Bodner KM, Sobel W, et al (1988) Validation of work histories obtained from interviews. Am J Epidemiol 128:343–351
Cockcroft A, Adams L (1986) Measurement and mechanisms of breathlessness. Bull Eur Physiopath Respir 22:85–92
Dixon WJ (ed) (1985) BMDP statistical software. University of California Press, Berkeley
Ernst P, Dales RE, Nunes F, Becklake MR (1989) Relation of airway responsiveness to duration of work in a dusty environment. Thorax 44:116–120
Enarson DA, Vedal S, Chang-Yeung M (1985) Rapid decline in FEV1 in grain handlers. Relation to level of dust exposure. Am Rev Respir Dis 132:814–817
Howe GR, Chiarelli AM, Lindsay JP (1988) Components and modifiers of the healthy worker effect: evidence from three occupational cohorts and implications for industrial compensation. Am J Epidemiol 128:1364–1375
James AL, Cookson WOCM, Buters G, et al (1986) Symptoms and longitudinal changes in lung function in young seasonal grain handlers. Br J Ind Med 43:587–591
Jedrychowski W (1979) A consideration of risk factors and development of chronic bronchitis in a five-year follow-up study of an industrial population. J Epidemiol Community Health 33:210–214
Jedrychowski W, Krzyzanowski M (1989) Ventilatory lung function and chronic chest symptoms among the inhabitants of urban areas with various levels of acid aerosols. The prospective study in Cracow. Environ Health Persp 79:101–107
Kauffmann F, Drouet D, Lellouch J, Brille D (1982) Occupational exposure and 12-year spirometric changes among Paris area workers. Br J Ind Med 39:221–232
Killian KJ (1988) Assessment of dyspnoea. Eur Respir J 1:195–197
Korn RJ, Dockery DW, Speizer FE (1987) Occupational exposures and chronic respiratory symptoms. A population based study. Am Rev Respir Dis 136:298–304
Krzyzanowski M, Jedrychowski W, Wysocki M (1988) Occupational exposures and changes in pulmonary function over 13 years among residents of Cracow. Br J Ind Med 45:747–754
Krzyzanowski M, Kauffmann F (1988) The relation of respiratory symptoms and ventilatory function to moderate occupational exposure in a general population. Results from the French PAARC study of 16000 adults. Int J Epidemol 17:397–406
Lebowitz MD (1977) Occupational exposures in relation to symptomatology and lung function in a community population. Environ Res 14:59–67
MRC Committee on the Aetiology of Chronic Bronchitis (1969) Standardised questionnaires on respiratory symptoms. Br Med J 2:1665
Norusis MJ (1988) SPSS/PC+ advanced statistics V2.0 SPSS Inc, Chicago
Pham QT, Mastrangelo G, Chau N, Haluszka J (1979) Five year longitudinal comparison of respiratory symptoms and function in steelworkers and unexposed workers. Bull Eur Physiopath Respir 15:469–480
Sawicki F (1972) Chronic nonspecific respiratory diseases in Cracow. Epidemiol Rev 26:229–250
Siracusa AR, Forcina A, Volpi R (1988) An 11-year longitudinal study of the occupational dust exposure and lung function of polyvinyl chloride, cement and asbestos cement factory workers. Scand J Work Environ Health 14:181–188
Speizer FE, Tager IB (1979) Epidemiology of chronic mucus hypersecretion and obstructive airways disease. Epidemiol Rev 1:124–142
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Krzyzanowski, M., Jedrychowski, W. Occupational exposure and incidence of chronic respiratory symptoms among residents of Cracow followed for 13 years. Int. Arch Occup Environ Heath 62, 311–317 (1990). https://doi.org/10.1007/BF00640839
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DOI: https://doi.org/10.1007/BF00640839