Comparison of cancers of the oral cavity and pharynx worldwide: etiological clues

摘要: We assessed separate and combined sex-specific incidence rates of oral pharyngeal cancer for 1988-92 oral/pharyngeal ratios from 49 different registries in five continents. Incidence trends over a period approximately 30 years were evaluated 16 long active men four women. Cancers the lip, salivary glands, nasopharynx excluded. The both among is highest northern France, southern India, few areas central eastern Europe, Latin America. Among women, observed India. Oral/pharyngeal ratio everywhere systematically lower compared to Recent are more favourable than those developing countries. In developed countries, appears be closely correlated changes alcohol consumption cancer.