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SURVIVAL OF CENTENARIANS IN JAPAN

Published online by Cambridge University Press:  18 September 2014

KENTA MUROTANI ,
BIN ZHOU ,
HIDEAKI KANEDA ,
EIJI NAKATANI ,
SHINSUKE KOJIMA ,
YOJI NAGAI  and
MASANORI FUKUSHIMA
KENTA MUROTANI
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
BIN ZHOU*
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
HIDEAKI KANEDA
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
EIJI NAKATANI
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan Department of Clinical Trial Design and Management, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
SHINSUKE KOJIMA
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
YOJI NAGAI
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
MASANORI FUKUSHIMA
Affiliation:
Translational Research Informatics Center, Foundation for Biomedical Research and Innovation, Kobe, Japan
*
1Corresponding author. Email: [email protected]
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Summary

The objective of the study was to explore the survival trends of centenarians in Japan. A cohort of centenarians born between 1881 and 1900 was analysed based on national census data, and the average life expectancy at 100 years of age, risk of death and maximum age were estimated. An analysis of covariance and a Cox regression analysis were performed to explore the factors associated with life expectancy and risk of death. The death rates in centenarians tended to decrease with birth year, and the average life expectancy from the age of 100 slightly increased at a rate of 0.013 years (95% CI: 0.007–0.019) by birth year in men and 0.026 in women. Women had a longer life expectancy than men, with a difference of 0.174 years (95% CI: 0.071–0.277) at birth year 1881 and increasing by 0.013 years per year thereafter. The risk of death in both sexes decreased significantly by birth year over the course of the period analysed, and the risk of death in men was 1.16 (95% CI: 1.14–1.19) times that of women. In women, death rates at every age significantly decreased with birth year over the course of the period analysed until age 104. However, this trend did not hold true for ages 105 and older. The average life expectancy of centenarians at the age of 100 in Japan increased by birth year in the 1881–1900 birth cohort. In addition, Japanese centenarians had the lowest death rates among several countries.

Type
Articles
Information
Journal of Biosocial Science , Volume 47 , Issue 6 , November 2015 , pp. 707 - 717
Copyright
Copyright © Cambridge University Press 2014 

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References

Horiuchi, S. (1991) Assessing effects of mortality reduction on population aging. Population Bulletin of the United Nations 31–32, 38–51.Google Scholar
Jeune, B. & Vaupel, J. W. (eds) (1995) Exceptional Longevity: From Prehistory to the Present. Odense Monographs on Population Aging, 2. Odense University Press, Odense, Denmark, pp. 109–116.Google Scholar
Kannisto, V. (1994) Development of Oldest-Old Mortality, 1950–1990. Odense University Press, Denmark. URL: http://www.demogr.mpg.de/Papers/Books/Monograph1/OldestOld.html Google Scholar
Kannisto, V., Lauritsen, J., Thatcher, A. R. & Vaupel, J. W. (1994) Reductions in mortality at advanced ages: several decades of evidence from 27 countries. Population and Development Review 20(4), 793–870.CrossRefGoogle Scholar
Krach, C. A. & Velkoff, A. A. (1999) Centenarians in the United States. URL: http://www.census.gov/prod/99pubs/p23-199.pdf Google Scholar
Liu, Y., Arai, A., Obayashi, Y., Kanda, K., Boostrom, E., Lee, R. B. & Tamashiro, H. (2013) Trends of gender gaps in life expectancy in Japan, 1947–2010: associations with gender mortality ratio and a social development index. Geriatrics & Gerontology International 13(3), 792–797.CrossRefGoogle Scholar
Lynch, S. M. & Brown, J. C. (2001) Reconsidering mortality compression and deceleration: an alternative model of mortality rates. Demography 38(1), 79–95.Google Scholar
Manton, K. G. & Vaupel, J. W. (1995) Survival after the age of 80 in the United States, Sweden, France, England, and Japan. New England Journal of Medicine 333(18), 1232–1235.Google Scholar
MHLW (2010) The Demographics in 2010 in Japan (in Japanese). Ministry of Heath, Labour and Welfare of Japan URL: http://www.mhlw.go.jp/toukei/saikin/hw/life/life10/sankou02.html Google Scholar
MHLW (2011) The Current Status of Centenarians (in Japanese). Ministry of Heath, Labour and Welfare of Japan URL: http://www.mhlw.go.jp/stf/houdou/2r9852000001o7t7.html Google Scholar
Oeppen, J. & Vaupel, J. W. (2002) Broken limits to life expectancy. Science 296(5570), 1029–1031.Google Scholar
Olshansky, S. J., Carnes, B. A. & Désesquelles, A. (2001) Demography. Prospects for human longevity. Science 291(5508), 1491–1492.Google Scholar
Poulain, M., Chambre, D., Foulon, M., Zhang, C. & Liu, Y. (2001) Survival among Belgian centenarians (1870–1894 cohorts). Population 13, 117–138.Google Scholar
Rau, R., Soroko, E., Jasilionis, D. & Vaupel, J. W. (2008) Continued reductions in mortality at advanced ages. Population and Development Review 34(4), 747–768.Google Scholar
Robine, J. M., Cheung, S. L., Saito, Y., Jeune, B., Parker, M. G. & Herrmann, F. R. (2010) Centenarians today: new insights on selection from the 5-COOP study. Current Gerontology & Geriatrics Research 2010:120354, doi: 10.1155/2010/120354.Google Scholar
Robine, J. M., Saito, Y. & Jagger, C. (2003) The emergence of extremely old people: the case of Japan. Experimental Gerontology 38(7), 735–739.Google Scholar
Thatcher, A. R., Cheung, S. L., Horiuchi, S. & Robine, J. M. (2010) The compression of deaths above the mode. Demographic Research 22, 505–538.Google Scholar
Thatcher, A. R., Kannisto, V. & Vaupel, J. W. (1998) The Force of Mortality at Ages 80 to 120. Odense University Press, Odense.Google Scholar
Trovato, F. & Heyen, N. B. (2006) A varied pattern of change of the sex differential in survival in the G7 countries. Journal of Biosocial Science 38(3), 391–401.Google Scholar
Trovato, F. & Lalu, N. (2007) From divergence to convergence: the sex differential in life expectancy in Canada, 1971–2000. Canadian Review of Sociology and Anthropology 44(1), 101–122.Google Scholar
Tuljapurkar, S., Li, N. & Boe, C. (2000) A universal pattern of mortality decline in the G7 countries. Nature 405(6788), 789–792.Google Scholar
Vaupel, J. W. & Lundström, H. (1996) The future of mortality at older ages in developed countries. In Lutz, W. (ed.) The Future Population of the World: What Can We Assume Today? Revised edition. Earthscan, London, pp. 278–295.Google Scholar
Yang, S., Khang, Y. H., Chun, H., Harper, S. & Lynch, J. (2012) The changing gender differences in life expectancy in Korea 1970–2005. Social Science & Medicine 75(7), 1280–1287.Google Scholar
WHO (2013) WHO Life Expectancy Data by WHO Region. URL: http://apps.who.int/gho/data/view.main.690?lang=en Google Scholar
Wilmoth, J. R., Deegan, L. J., Lundström, H. & Horiuchi, S. (2000) Increase of maximum life-span in Sweden, 1861–1999. Science 289(5488), 2366–2368.Google Scholar