Pseudocapsular exfoliation in the Bantu of South Africa
نویسندگان
چکیده
Pseudocapsular exfoliation occurs in most races and countries but appears to be particularly common in Norway and in the Eastern European and Mediterranean countries. It is rare in American Negroes, only two cases having been reported (Gradle and Sugar, 1947), and in Negroes in the West Indies (Connell, I970), and has not been reported in Negroes elsewhere outside South Africa (Bartholomew, I970; Luntz, I970). The geographical distribution of exfoliation was reviewed by Aasved (i969), who concluded that many of the differences in occurrence and prevalence are due to the nature of the samples and methods used. He found prevalence rates, in three groups of subjects over 60years old, of 6 3 per cent. in Norway, 4 0 per cent. in Germany, and 4.7 per cent. in England, using similar samples and identical methods ofexamination. The apparent rarity of exfoliation in Negroes throughout the world, apart from the South African Bantu, promoted these efforts to obtain more information about the occurrence and prevalence of exfoliation in the various Bantu tribes, who have different racial and genetic backgrounds, live under widely different climatic conditions, and are at different stages in development from a primitive rural to an urban way of life.
منابع مشابه
Pseudocapsular exfoliation in the Bantu of South Africa. II. Occurrence and prevalence.
Pseudocapsular exfoliation occurs in most races and countries but appears to be particularly common in Norway and in the Eastern European and Mediterranean countries. It is rare in American Negroes, only two cases having been reported (Gradle and Sugar, 1947), and in Negroes in the West Indies (Connell, I970), and has not been reported in Negroes elsewhere outside South Africa (Bartholomew, I97...
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