Leukoedema – an epidemiologic study with special reference to the influence of tobacco habits

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Abstract
Among 20,333 individuals aged .gtoreq. 15 yr, examined in urban, suburban and rural regions in the middle of Sweden, leukoedema was found in 48.9%. The sex difference, males 61.9% and females 35.9%, was highly significant (P < 0.001). The condition was most prevalent in the age groups 25-34 and 15-24 yr being 60.6 and 57.3%, respectively. Leukoedema was significantly more prevalent among individuals with some daily tobacco habit (60.0%) than among those without (36.3%) (P < 0.001), being most prevalent among smokers. The lesion seemed to be related to the amount of smoking since it was most prevalent among heavy smokers, and also the most clearly established lesions were found in this group.