In recent years, there has been a rapid increase in YPLL associated with breast cancer. Preventive policies should be implemented to develop strategies aimed at reducing the rapid increase in the development of breast cancer.

Mortality from uterine cancer tended toward the aging in Japan. The general mortality reduction trend was attributed to younger people and adults. These age characteristics can be explained by the increase in life expectancy during the 50-year period.

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The purpose of this study was to determine how life expectancy is modified by ovarian cancer from 1950-2000. The contributions of ovarian cancer to life expectancy were estimated. The age characteristics of ovarian cancer were detected using the Gompertz relational mortality model. The patterns between years of potential life lost (YPLL) and mortality were obtained by fitting a linear regression equation to the natural logarithm of their ratios. YPLLs are substantially higher in Ireland than in Japan. However, the rates of change were much higher in Japan than in Ireland. YPLLs changed from 0.02 year in 1950 to 0.12 year in 2000. In Japan, there was a sixfold increase in the proportion of YPLLs for death from ovarian cancer relative to those for death from gynaecological cancers during the last half century. The impact of ovarian cancer on life expectancy clearly increased and the age-specific mortality tend to ageing.Ovarian cancer, life expectancy, YPLLs, Gompertz,