Doctor Scientiae Dentium - DSc(Dent) (Odontology)

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Oral submucous fibrosis in Durban, Natal: a study of its epidemiology, aetiology and morphological features
(Stellenbosch University, 1985) Seedat, Hoosen Ahmed; van Wyk, C W
There is no satisfactory statistical record of oral submucous fibrosis in the Republic of South Africa or India. The present prevalence study of OSF among Indians in the municipal area of Durban was planned by the Institute for Biostatistics of the South African Medical Research Council. The sampling consisted of a stratified random survey and the total number of subjects examined was 2 058. They were stratified into the age groups: 10-14, 15-24, 25-34, 35-44, 45-54, 55-64, 65+ years, and into sexes. Each age group included 294 people (147 males and 147 females). From the 29 suburbs included in this survey 147 points were sampled. The number of sampling points was calculated proportional to the population size. At each sampling point one individual of each sex in each age group was selected i.e. 14 individuals at each sampling point.