Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan

Abstract Background Aging increases the disease burden because of an increase in disease prevalence and mortality among older individuals. This could influence the perception of the social burden of different diseases and treatment prioritization within national healthcare services. Cancer is a dise...

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Main Authors: Kunichika Matsumoto, Yosuke Hatakeyama, Kanako Seto, Ryo Onishi, Koki Hirata, Yinghui Wu, Tomonori Hasegawa
Format: Article
Language:English
Published: BMC 2022-12-01
Series:BMC Geriatrics
Subjects:
Online Access:https://doi.org/10.1186/s12877-022-03683-3
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author Kunichika Matsumoto
Yosuke Hatakeyama
Kanako Seto
Ryo Onishi
Koki Hirata
Yinghui Wu
Tomonori Hasegawa
author_facet Kunichika Matsumoto
Yosuke Hatakeyama
Kanako Seto
Ryo Onishi
Koki Hirata
Yinghui Wu
Tomonori Hasegawa
author_sort Kunichika Matsumoto
collection DOAJ
description Abstract Background Aging increases the disease burden because of an increase in disease prevalence and mortality among older individuals. This could influence the perception of the social burden of different diseases and treatment prioritization within national healthcare services. Cancer is a disease with a high disease burden in Japan; however, the age-specific frequency and age-specific mortality rates differ according to site. In this study, we evaluated the relationship between the aging of the Japanese society and the disease burden by comparing the features of three cancers with different age-specific frequency rates in Japan. Furthermore, we made projections for the future to determine how the social burden of these cancers will change. Methods We calculated the social burden of breast, lung, and prostate cancers by adding the direct, morbidity, and mortality costs. Estimates were made using the cost of illness (COI) method. For future projections, approximate curves were fitted for mortality rate, number of hospital admissions per population, number of outpatient visits per population, and average length of hospital stay according to sex and age. Results The COI of breast, lung, and prostate cancers in 2017 was 903.7, 1,547.6, and 390.8 billion yen, respectively. Although the COI of breast and prostate cancers was projected to increase, that of lung cancer COI was expected to decrease. In 2017, the average age at death was 68.8, 76.8, and 80.7 years for breast, lung, and prostate cancers, respectively. Conclusions Patients with breast cancer die earlier than those with other types of cancer. The COI of breast cancer (“young cancer”) was projected to increase slightly because of an increase in mortality costs, whereas that of prostate cancer (“aged cancer”) was projected to increase because of an increase in direct costs. The COI of lung cancer (“aging cancer”) was expected to decrease in 2020, despite the increase in deaths, as the impact of the decrease in human capital value outweighed that of the increase in deaths. Our findings will help prioritize future policymaking, such as cancer control research grants.
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spelling doaj.art-29b740ea03034cc09b0a6ff7f597a7f22022-12-22T03:54:25ZengBMCBMC Geriatrics1471-23182022-12-0122111110.1186/s12877-022-03683-3Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in JapanKunichika Matsumoto0Yosuke Hatakeyama1Kanako Seto2Ryo Onishi3Koki Hirata4Yinghui Wu5Tomonori Hasegawa6Department of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineSchool of Nursing, Shanghai Jiao Tong UniversityDepartment of Social Medicine, Toho University School of MedicineAbstract Background Aging increases the disease burden because of an increase in disease prevalence and mortality among older individuals. This could influence the perception of the social burden of different diseases and treatment prioritization within national healthcare services. Cancer is a disease with a high disease burden in Japan; however, the age-specific frequency and age-specific mortality rates differ according to site. In this study, we evaluated the relationship between the aging of the Japanese society and the disease burden by comparing the features of three cancers with different age-specific frequency rates in Japan. Furthermore, we made projections for the future to determine how the social burden of these cancers will change. Methods We calculated the social burden of breast, lung, and prostate cancers by adding the direct, morbidity, and mortality costs. Estimates were made using the cost of illness (COI) method. For future projections, approximate curves were fitted for mortality rate, number of hospital admissions per population, number of outpatient visits per population, and average length of hospital stay according to sex and age. Results The COI of breast, lung, and prostate cancers in 2017 was 903.7, 1,547.6, and 390.8 billion yen, respectively. Although the COI of breast and prostate cancers was projected to increase, that of lung cancer COI was expected to decrease. In 2017, the average age at death was 68.8, 76.8, and 80.7 years for breast, lung, and prostate cancers, respectively. Conclusions Patients with breast cancer die earlier than those with other types of cancer. The COI of breast cancer (“young cancer”) was projected to increase slightly because of an increase in mortality costs, whereas that of prostate cancer (“aged cancer”) was projected to increase because of an increase in direct costs. The COI of lung cancer (“aging cancer”) was expected to decrease in 2020, despite the increase in deaths, as the impact of the decrease in human capital value outweighed that of the increase in deaths. Our findings will help prioritize future policymaking, such as cancer control research grants.https://doi.org/10.1186/s12877-022-03683-3Cost of illnessAgingCancerHealth economicsJapan
spellingShingle Kunichika Matsumoto
Yosuke Hatakeyama
Kanako Seto
Ryo Onishi
Koki Hirata
Yinghui Wu
Tomonori Hasegawa
Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
BMC Geriatrics
Cost of illness
Aging
Cancer
Health economics
Japan
title Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
title_full Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
title_fullStr Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
title_full_unstemmed Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
title_short Cost of illness in a super-aged society—comparison of breast, lung, and prostate cancer in Japan
title_sort cost of illness in a super aged society comparison of breast lung and prostate cancer in japan
topic Cost of illness
Aging
Cancer
Health economics
Japan
url https://doi.org/10.1186/s12877-022-03683-3
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