Abstract
BackgroundWe used disability-adjusted life years (DALY) to estimate the cancer burden in Japan for the year 2000.MethodsWe estimated years of life lost (YLL) by using mortality data and years lived with disability (YLD) by using incidence data. The DALY for cancer was calculated as the sum of YLL and YLD.ResultsFor all cancers combined, 2 733 884 years of DALY were estimated in men and 2 091 874 years were estimated in women. Among men, stomach and lung cancers accounted for the largest proportions of DALY, followed by liver cancer and colorectal cancer. Among women, the greatest contributors to DALY were stomach, colorectal, breast, and lung cancers.ConclusionsThe national cancer burden in Japan was expressed in terms of DALY, which might be useful in assessing future changes with respect to mortality and morbidity in Japan.
Highlights
In Japan, cancer overtook stroke in the early 1980s as the leading cause of death.[1]
The burden was greatest for stomach cancer, which accounted for 14.7% of total disability-adjusted life years (DALY), followed by colorectal cancer at 13.8%, breast cancer at 11.9%, and lung cancer at 11.2%
We estimated the cancer burden in Japan for the year 2000 by using DALY to account for the burden of both cancer incidence and mortality
Summary
In Japan, cancer overtook stroke in the early 1980s as the leading cause of death.[1]. Disability-adjusted life years (DALY) was developed in the 1990s for the Global Burden of Disease (GBD) study. It uses time units to estimate disease burden by combining years of life lost (YLL) due to premature mortality with years lived with disability (YLD) in incident cases.[2,3]. We used disability-adjusted life years (DALY) to estimate the cancer burden in Japan for the year 2000. Methods: We estimated years of life lost (YLL) by using mortality data and years lived with disability (YLD) by using incidence data. Results: For all cancers combined, 2 733 884 years of DALY were estimated in men and 2 091 874 years were estimated in women. The greatest contributors to DALY were stomach, colorectal, breast, and lung cancers. Conclusions: The national cancer burden in Japan was expressed in terms of DALY, which might be useful in assessing future changes with respect to mortality and morbidity in Japan
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