Sexual behaviours and the risk of head and neck cancers: a pooled analysis in the International Head and Neck Cancer Epidemiology (INHANCE) consortium.

Background: Sexual contact may be the means by which head and neck cancer patients are exposed to human papillomavirus (HPV).

Methods: We undertook a pooled analysis of four population-based and four hospital-based case-control studies from the International Head and Neck Cancer Epidemiology (INHANCE) consortium, with participants from Argentina, Australia, Brazil, Canada, Cuba, India, Italy, Spain, Poland, Puerto Rico, Russia and the USA. The study included 5642 head and neck cancer cases and 6069 controls.

[Risk factors of laryngeal cancer in Central and Eastern Europe].

A case-control epidemiologic study in squamous-cell carcinoma of the larynx (LC) vs. smoking was carried out. Although no independent influence of drinking was found, the synergetic effect of the two habits potentiated the carcinogenic impact.

[Chloroprene as possible industrial carcinogen].

The authors conducted 2 independent cohort studies on epidemiology of malignancies among workers contacting chloroprene. The first study covered morbidity and mortality with malignancies among workers engaged into polychloroprene resins production in Erevan; the second study--mortality with malignancies among Moscow shoe makers who contacted polychloroprene glues and latex. The findings are reliably higher risk of morbidity and mortality with hepatic cancer, dose--effect dependence between chloroprene exposure and occurrence of and mortality with hepatic cancer.

[New aspects of carcinogenic hazards in shoe industry (a retrospective epidemiological study)].

Epidemiologic study of occupational cancer covered a cohort of shoe production workers exposed to chloroprene. The cohort consists of 5058 examinees having length of service over 2 years and subjected to follow-up for 15 years. The total person-years equaled 75,000.

[Preliminaries to a study of epidemiology of occupational cancer among workers of shoe factories].

Data presented in literature proves frequent malignancies of various localizations in workers engaged into footwear production, which could result from exposure to leather, rubber dust and some chemicals (polyvinylchloride, chloroprene and others). Hygienic studies of air at footwear production demonstrate that the workers at their workplaces are exposed to such occupational hazards as dust, chemicals. Epidemiologic research to reveal possible correlation between work conditions and the workers' health are expedient.