The significance of tobacco smoking, alcohol consumption and occupation as risk factors for the development of vocal chord dysplasia was evaluated in a case-control study. Twenty-seven male patients with dysplasia of the vocal chords were chosen from the 1. ENT-University Clinic in Vienna (1985–1988) and compared with 54 controls.
The main results are: The relative risk (RR) of a smoker compared to that of a non-smoker for vocal chord dysplasia is 7.27 (6.81–7.73); the RR adjusted for occupation is 3.58 (2.31–4.84). The most important risk factor, however, is occupational exposure. The relative risk of a blue collar worker compared to that of a white collar worker is 11.04 (10.61–11.46), which is reduced only to 10.02 (10.61–11.46) after stratification according to smoking habits.
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Grasp, M.C., Neuwirth-Riedl, K., Vutuc, C. et al. Risk of vocal chord dysplasia in relation to smoking, alcohol intake and occupation. Eur J Epidemiol 6, 45–48 (1990). https://doi.org/10.1007/BF00155548
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DOI: https://doi.org/10.1007/BF00155548