Summary
Information was obtained on consanguinity between parents of outpatients, born in 1960–1976, at the pediatric clinic in a hospital in Tokyo. Of 2,383 couples living in Metropolis Tokyo, 16 or 0.67% were first cousins, 8 or 0.34% first cousins once removed, and 5 or 0.21% second cousins. The total consanguinity rate was 1.22%, and the mean inbreeding coefficient was 0.000557, much lower than the values for the whole of Japan.
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References
Furusho, T. Unpublished, cited from Komai.
Imaizumi, Y., Shinozaki, N., and Aoki, H. 1975. Inbreeding in Japan: Results of a nation-wide study.Jap. J. Human Genet. 20:91–107.
Imaizumi, Y., Shinozaki, N., and Aoki, H. Unpublished data.
Kawakami, R. 1931. Statistical consideration of consanguineous marriage (in Japanese).Nipponljishinpo No. 482.
Komai, T. 1972. Genetic studies on inbreeding in some Japanese populations. I. Introductory remarks.Jap. J. Human Genet. 17:87–113.
Komai, T. and Tanaka, K. 1972. Genetic studies on inbreeding in some Japanese populations. II. The study of school children in Shizuoka: History, frequencies of consanguineous marriages and their subtypes, and comparability in socio-economic status among consanguinity classes.Jap. J. Human Genet. 17:114–148.
Nakamoto, N. 1969. A study of consanguinity in Fukuoka, an urban population of large size—Mating patterns and degree of inbreeding (in Japanese).Fukuoka Acta Medica 60:184–209.
Schull, W.J. and Neel, J.V. 1965. The Effects of Inbreeding on Japanese Children. Harper & Row, New York.
Shinozaki, N. Unpublished, cited from Schull and Neel.
Tachikawa, K. and Kuwahara, R. 1941. Frequency of consanguineous marriages in Tokyo City (in Japanese). In:Quality and Life of Nation. Society of Population Problem Study, ed., Toko-Shoin, Tokyo, pp. 98–101.
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This study was supported by the Scientific Research Grant from the Ministry of Education, Science, and Culture of Japan No. 037020 in 1975 and No. 137071 in 1976 and 1977, and the Grant from the Ministry of Health and Welfare of Japan in 1974–1976 for the Research on Handicapped Children.
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Tanaka, K., Haraoka, K. & Hayase, R. Incidence of consanguineous marriage in recent metropolis Tokyo. Jap J Human Genet 23, 395–400 (1978). https://doi.org/10.1007/BF01908195
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DOI: https://doi.org/10.1007/BF01908195
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