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Probabilities of Developing Cancer over the Whole Life Span of a Japanese
Manami Inoue1, Kazuo Tajima, Suketami Tominaga
1Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan. minoue@aichi-cc.pref.aichi.jp
Abstract:
To obtain a relevant index of the impact of cancer on the Japanese population, considering curable cases as well as mortalities, the probability of developing cancer in the entire life span of a Japanese was estimated. A method based on the cumulative risk of cancer was employed to estimate the probability. This cumulative risk method gave a lifetime probability of developing cancer in any site of 52 % for males and 31 % for females in 1994 up to 85+ years of age. and for the average life expectancy of Japanese, 77 years for males and 84 years for females, 32 % and 26 % respectively. The estimated probabilities provide reasonable and practical indices of the impact of cancer today. This method can be also applied to local estimation if population-based cancer registry data are available.
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