Abstract
A range of mathematical models and error distributions was used to examine the validity of linear regression methods for the calculation of lethal gene equivalents. Because of the restricted span of inbreeding coefficient F values available in human studies and the limited number of data points, equivalent results were obtained with all combinations tested. It was concluded that linear regressions should be employed only for the detection of significant inbreeding effects in man and that their application to the estimation of lethal gene equivalents was not warranted.
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Azevedo, E S, Freire-Maia, N, Azevedo, M C C, Weiner, T A, and Souza, M M M. 1980. Inbreeding in a Brazilian general hospital. Ann Hum Genet 43, 255–264.
Baker, R J, and Nelder, J A. 1978. GLIM Manual, (release 3), Numerical Algorithms Group, Oxford.
Bemiss, S M. 1958. Report on influence of marriages of consanguinity upon offspring. Trans Amer Med Assoc 11, 319–425.
Bittles, A H, and Makov, E. 1985. Linear regressions in the calculation of lethal gene equivalents in man. Ann Hum Biol 12, 287–289.
Cavallisforza, L L, and Bodmer, W F. 1971. The Genetics of Human Populations, W. H. Freeman, San Francisco, pp. 360–365.
Chakraborty, R, and Chakravarti, A. 1977. On consanguineous marriage and the genetic load. Hum Genet. 36, 47–54.
Dobson, A J. 1983. Introduction to Statistical Modelling, Chapman and Hall, London.
Freire-Maia, N. 1984. Effects of consanguineous marriages on morbidity and precocious mortality: genetic counselling. Amer J Med Genet. 18, 401–406.
McCullagh, P, and Nelder, J A. 1983. Generalized Linear Models, Chapman and Hall, London.
Morton, N E, Crow, J F, and Muller, H J. 1956. An estimate of the mutational damage in man from data on consanguineous marriages. Proc Natl Acad Sci (USA) 42, 855–863.
Neel, J V, and Schull, W J. 1962. The effect of inbreeding on mortality and morbidity in two Japanese cities. Proc Natl Acad Sci (USA) 48, 573–582.
Rao, P S S, and Inbaraj, S G. 1979. Trends in human reproductive wastage in relation to long-term practice of inbreeding. Ann Hum Genet 42, 401–413.
Schull, W J. 1958. Empirical risks in consanguineous marriages: sex ratio, malformation and viability. Amer J Hum Genet 10, 294–343.
Smith, C A B. 1967. Note on a paper by S. Kumar, R. A. Pai and M. S. Swaminathan. Ann Hum Genet 31, 146–147.
Smith, C A B. 1969. Corrigenda. Ann Hum Genet 32, 419.
Spiess, E B. 1977. Genes in Populations, John Wiley, New York, pp. 604–608.
Sutter, J, and Tabah, L. 1952. Effets de la consanguinité et de l'endogamie. Une enquete en Morbihan et Loir et Cher. Population 7, 249–266.
Sutter, J, and Tabah, L. 1953. Structure de la mortalité dans les familles consanguines. Population 8, 511–526.
Yamaguchi, M, Yanase, T, Nagano, H, and Nakamoto, N. 1970. Effects of inbreeding on mortality in Fukuoka population. Amer J Hum Genet 22, 145–159.
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Makov, E., Bittles, A. On the choice of mathematical models for the estimation of lethal gene equivalents in man. Heredity 57, 377–380 (1986). https://doi.org/10.1038/hdy.1986.136
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DOI: https://doi.org/10.1038/hdy.1986.136


