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Life Expectancy of Monozygotic and Dizygotic Twins

Published online by Cambridge University Press:  01 August 2014

P. Taubman*
Affiliation:
Department of Economics, University of Pennsylvania, Philadelphia, Pa, USA
*
Department of Economics, University of Pennsylvania, Philadelphia, PA 19104-6297, USA

Abstract

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White male twins from the NAS-NRC twin sample, who were born in the U.S. between 1917 and 1927 and served in the military, are used to estimate variability in hazard functions for those twins who died during the period 1974-1990. Roughly the same number of MZ and DZ twins died during this period, but their death rates are similar. DZ twins exhibit greater within-pair variation. Using hazard and other analyses, the only statistically significant variables are found to be being a DZ twin (in level equations), date of birth, and, sometimes, wife's religious preference. Variables not significant for level or within-pair equations, include own religion, parental education, working overtime frequently, and number of children. The greater variation in life expectancy of DZ twins is hardly surprising and may say something about the lack of comparability in phenotype variance of DZ twins, which in turn may be worrying.

Type
Research Article
Copyright
Copyright © The International Society for Twin Studies 1993

References

REFERENCES

1. Ashenfelter, O, Krueger, A (1992): Estimates of the Economic Return to Schooling from a New Sample of Twins, Second Edition. Princeton: Princeton University Press.Google Scholar
2. Behrman, JR, Hrubec, Z, Taubman, P, Wales, TJ (1980): Socioeconomic Success: a Study of the Effects of Genetic Endowments, Family Environment and Schooling. Amsterdam: North-Holland Publishing Company.Google Scholar
3. Behrman, JR, Rosenzweig, MR, Taubman, P (1992): Endowment and the allocation of schooling in the family and in the marriage market: the twin experiment'. Jul. Pol. Econ. 102.Google Scholar
4. Behrman, JR, Sickles, R, Taubman, P (1988): Age-specific death rates. In Lazear, E and Ricardo-Campbell, R (eds): Issues in Contemporary Retirement. Stanford, CA: Hoover Institution Press: pp. 162190.Google Scholar
5. Behrman, JR, Sickles, R, Taubman, P (1990): Survivor functions with covariates: sensitivity to sample length, functional form, and unobserved frailty. Demography 27:267284.Google Scholar
6. Behrman, JR, Sickles, R, Taubman, P (1993): Some Causes and Consequences of Death. Philadelphia: University of Pennsylvania, mimeo.Google Scholar
7. Brook, RH, Ware, JE Jr, Rogers, WH, Keeler, EB, Davies, AR, Donald, CA, Goldberg, GA, Lohr, KK, Masthay, PC, Newhouse, JP (1983): Does free care improve adults' health? Results from a randomized controlled trial. New England Journal of Medicine 309:23:14261434.Google Scholar
8. Cavalli-Sforza, LL, Bodmer, M (1971): The Genetics of Human Populations. San Francisco, CA: W.H. Freeman and Company.Google Scholar
9. Cox, D (1972): Regression models and life tables. Journal of the Royal Statistical Society, Series B, 34:187202.Google Scholar
10. Dorn, H (1958): The mortality of smokers and non-smoking. Proceedings of the Social Statistics Section of the American Statistical Association 53:3971.Google Scholar
11. Duleep, H (1986): The socioeconomic determinants of mortality: the role of income. Journal of Human Resources 21:238251.Google Scholar
12. Grossman, M (1972): The Demand for Health: a Theoretical and Empirical Investigation. New York: Columbia University Press.Google Scholar
13. Hougaard, PB, Harvald, B, Holm, NV (1992): Measuring the similarities between the lifetimes of adult Danish twins born between 1881-1930. Journal of the American Statistical Association 87:1724.Google Scholar
14. Hrubec, Z, Neel, J (1981): Familial factors in early deaths: twins followed 30 years to ages 51-61. Human Genetics 59:3946.Google Scholar
15. Jacquard, A (1982): Heritability of human longevity. In Preston, SH (ed): Biological and Social Aspects of Mortality and Length of Life. Liege, Belgium: Ordina.Google Scholar
16. Kapiro, J, Koskenuvo, M (1990): Cigarette smoking as a cause of lung cancer and coronary heart disease: a study of smoking discordant twin pairs. Acta Genet Med Gemellol 39:2570.Google Scholar
17. Kitagawa, E, Hauser, P (1973): Differential Mortality in the United States of America: a Study in Socioeconomic Epidemiology. Cambridge, MA: Harvard University Press.Google Scholar
18. Loehlin, J, Nichols, R (1976): Heredity, Environment and Personality: a Study of 850 Sets of Twins. Austin, Texas and London: University of Texas Press.Google Scholar
19. Lykken, DT, Bouchard, TJ Jr, Mcbue, M, Tellegen, A (1990): The Minnesota Twin Family Registry: some initial findings. Acta Genet Med et Gemellol 39:3570.Google Scholar
20. Manton, KG, Stollard, E, Vaupel, JW (1986): Alternative models for the heterogeneity of mortality risks among the aged. Journal of the American Statistical Association 81:635644.Google Scholar
21. Rosen, S, Taubman, P (1979): Changes in the impact of education and income on Mortality in the U.S. In Statistical Uses of Administrative Records with Emphasis on Mortality and Disability Research. Washington, DC: United States Department of Health, Education, and Welfare.Google Scholar
22. Scarr, S, Webber, PL, Weinberg, RA, Wittig, MA (1981): Personality resemblance among adolescents and their parents in biologically related and adoptive families. In Gedda, L, Parisi, P, Nance, WE (eds): Twin Research: Part B, Intelligence, Personality and Development. New York: Alan R. Liss.Google Scholar
23. Taubman, P (1976a): Earning education, genetics and environment. Journal of Human Resources 11:4:447461.Google Scholar
24. Taubman, P (1976b): The determinants of earnings: genetics, family and other environments: a study of white male twins. American Economic Review 66:5:858870.Google Scholar
25. Vaupel, J (1988): Inherited frailty and longevity. Demography 25:2 277288.Google Scholar
26. Vaupel, J W, Lindstrom, H (1993): Longer life expectancy? Evidence from Sweden of reduction in mortality rates in advanced ages. In Wise, D (ed): Economics of Aging. Chicago: University of Chicago Press.Google Scholar
27. Yashin, A I, Vaupel, J W, Chervonenkis, Y, Sachine, A, Harvald, B, Holm, N (1992): Twins Die Twice. Ann Arbor: University of Michigan, mimeo.Google Scholar