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Spina Bifida in Japan 1969‐1975: Geographical and Social Class Variations
Author(s) -
IMAIZUMI Yoko
Publication year - 1985
Publication title -
congenital anomalies
Language(s) - English
Resource type - Journals
eISSN - 1741-4520
pISSN - 0914-3505
DOI - 10.1111/j.1741-4520.1985.tb00638.x
Subject(s) - spina bifida , anencephaly , demography , social class , variation (astronomy) , prevalence , geographic variation , medicine , fetus , pediatrics , biology , pregnancy , population , genetics , sociology , physics , political science , astrophysics , law
An analysis of 1,103 fetal and postnatal deaths from spina bifida during 1969‐1975 is presented. The overall birth prevalence rate was 0.75 per 10,000 births and was slightly higher in the southwest than in the northeast of Japan. Social class variation in the prevalence rate during the period was studied. Geographical variation in the prevalence rate of spina bifida is not similar to that of anencephaly, whereas the social class variations in the prevalence rate of the two defects are similar.