On the sexual Ratio of the Infant:Mortality in Japan proper
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概要
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The authors investigated in the sexual ratio of the infant mortality in Japan proper with the following results:<BR>1) With the successive diminution of the infant death-rate in recent years, the sexual ratio-the ratio of the female death-rate to the male death-rate in hundreds-has increased successively.<BR>2) There is a tendency, it seems, that the sexual ratio is lower in such prefectures as show the high death-rate of infants.<BR>3) The sexual ratio is higher in the death-rate of younger infants comparing with that of older infants.<BR>4) The sexual ratio is higher in the infant death-rate due to congenital weakness than in the infant death-rate due to all other causes.<BR>These points above mentioned are consistent with the opinion of Lenz and Shirmer; and the authors discussed here sexual ratio as an index to the relation between the environmental and the hereditary factors in the infant mortality.
- 日本民族衛生学会の論文