A targeted questionnaire was administered to 336 male workers (112 industry workers, 120 stoneworkers, and 104 office workers) regarding occupational and extra-occupational risk factors for venous diseases. The workers were clinically examined, and a venous check-up and specific tests were done in clinostatic and orthostatic postures. The prevalence of chronic venous disorders was significantly higher among industrial workers than among stoneworkers and office workers. The results showed a positive relationship between the prevalence of venous diseases and increased age and number of hours spent standing. Considering workers of the same age classes, a higher prevalence of venous diseases was found between those who stood for >=50% of their shift and those who stood for <50% of the time. The results suggest that professions involving standing, particularly for those standing for >50% of the shift, can influence the development of chronic venous disorders.

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