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Japan is the fastest aging country, with the largest super-aged society in the world and growing larger by the day, yet its universal health care costs are relatively low. In Health Insurance Politics in Japan , Takakazu Yamagishi draws back the curtain for an international audience and investigates how Japan has been able to control health care costs through health insurance politics. Covering the period from the Meiji Restoration to the Abe Administration, Yamagishi uses a historical institutionalist approach to examine the driving force behind the development of health insurance policies in Japan. Yamagishi pays special attention to the roles of government and medical professionals, the main actors of the policymaking and medical worlds, in this development. Health Insurance Politics in Japan pushes Japan into the spotlight of the international conversation about health care reform.

World War II forced extensive and comprehensive social and political changes on nations across the globe. This comparative examination of health insurance in the United States and Japan during and after the war explores how World War II shaped the health care systems of both countries. To compare the development of health insurance in the two countries, Takakazu Yamagishi discusses the impact of total war on four factors: political structure, interest group politics, political culture, and policy feedback. During World War II, the U.S. and Japanese governments realized that healthy soldiers, workers, mothers, and children were vital to national survival. While both countries adopted new, expansive national insurance policies as part of their mobilization efforts, they approached doing so in different ways and achieved near-opposite results. In the United States, private insurance became the predominant means of insuring people, save for a few government-run programs. Japan, meanwhile, created a near-universal, public insurance system. After the war, their different policy paths were consolidated. Yamagishi argues that these disparate outcomes were the result of each nation's respective war experience. He looks closely at postwar Japan and investigates how political struggles between the American occupation authority and U.S. domestic forces, such as the American Medical Association, helped solidify the existing Japanese health insurance system. Original and tightly argued, this volume makes a strong case for treating total war as a central factor in understanding how the health insurance systems of the two nations grew, while bearing in mind the dual nature of government intervention—however slight—in health care. Those interested in debates about health care in Japan, the United States, and other countries, and especially scholars of comparative political development, will appreciate and learn from Yamagishi's study.

Health Japan 21 is Japan’s premier health promotion policy encompassing preventive community health measures for lifestyle-related diseases. In this repeated cross-sectional survey, we report 24-year trends of type 2 diabetes mellitus (T2DM), obesity, hypertension, and their association with dietary intakes to evaluate Health Japan 21’s impact and identify gaps for future policy implementation. We analyzed data from 217,519 and 232,821 adults participating in the physical examination and dietary intake assessment, respectively, of the National Health and Nutrition Survey 1995–2019. Average HbA1c and BMI have significantly increased along with the prevalence of T2DM and overweight/obesity among males. Despite a significant decrease in daily salt intake, the decline in the combined prevalence of Grades 1–3 hypertension was non-significant. Seafood and meat intakes showed strong opposing trends during the study period, indicating a dietary shift in the Japanese population. Neither salt nor vegetable/fruit intake reached the target set by Health Japan 21. Metabolic disease trend differences between males and females highlight the need for a gender-specific health promotion policy. Future Health Japan 21 implementation must also consider locally emerging dietary trends.

Health Insurance Politics in Japan -- Contents -- Acknowledgments -- List of Abbreviations -- Notes on the Text -- Introduction: To Understand the Health Insurance Policy Development in Japan -- 1. Westernizing Medicine -- 2. Reacting to Deteriorating Health -- 3. Improving People's Health for War -- 4. Reforming Health Care with the United States -- 5. Achieving Universal Health Insurance -- 6. Consolidating Universal Health Insurance -- 7. Making Universal Health Insurance Survive -- 8. Japanese Health Care in the Globalization Era -- Conclusion: For the Future of Health Insurance Politics -- Appendix -- Notes -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- R -- S -- T -- U -- V -- W -- Y.

This study performs the augmented autoregressive distributed lag (ARDL) approach to investigate the impact of renewable energy and health expenditures on the load capacity factor in Japan and the United States of America (USA) over the period 1982-2016. The load capacity factor is obtained by dividing the biocapacity into the ecological footprint and provides a general picture of environmental quality. Thus, the study departs from the current literature by approaching environmental problems from a broader perspective. The results of this study confirm the existence of cointegration in the USA and Japan. The long-run estimates demonstrate that renewable energy and health expenditures improve environmental quality in the USA, while renewable energy has a positive but insignificant impact on load capacity factor in Japan. It has also been determined economic growth causes significant environmental degradation, which cannot be compensated by renewables and health expenditures in both countries. According to these findings, Japanese and American governments should promote green growth, support the increase in health expenditures, and diversify renewable energy sources to reduce environmental pressure.

National levels of personal health-care access and quality can be approximated by measuring mortality rates from causes that should not be fatal in the presence of effective medical care (ie, amenable mortality). Previous analyses of mortality amenable to health care only focused on high-income countries and faced several methodological challenges. In the present analysis, we use the highly standardised cause of death and risk factor estimates generated through the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) to improve and expand the quantification of personal health-care access and quality for 195 countries and territories from 1990 to 2015. We mapped the most widely used list of causes amenable to personal health care developed by Nolte and McKee to 32 GBD causes. We accounted for variations in cause of death certification and misclassifications through the extensive data standardisation processes and redistribution algorithms developed for GBD. To isolate the effects of personal health-care access and quality, we risk-standardised cause-specific mortality rates for each geography-year by removing the joint effects of local environmental and behavioural risks, and adding back the global levels of risk exposure as estimated for GBD 2015. We employed principal component analysis to create a single, interpretable summary measure–the Healthcare Quality and Access (HAQ) Index–on a scale of 0 to 100. The HAQ Index showed strong convergence validity as compared with other health-system indicators, including health expenditure per capita (r=0·88), an index of 11 universal health coverage interventions (r=0·83), and human resources for health per 1000 (r=0·77). We used free disposal hull analysis with bootstrapping to produce a frontier based on the relationship between the HAQ Index and the Socio-demographic Index (SDI), a measure of overall development consisting of income per capita, average years of education, and total fertility rates. This frontier allowed us to better quantify the maximum levels of personal health-care access and quality achieved across the development spectrum, and pinpoint geographies where gaps between observed and potential levels have narrowed or widened over time. Between 1990 and 2015, nearly all countries and territories saw their HAQ Index values improve; nonetheless, the difference between the highest and lowest observed HAQ Index was larger in 2015 than in 1990, ranging from 28·6 to 94·6. Of 195 geographies, 167 had statistically significant increases in HAQ Index levels since 1990, with South Korea, Turkey, Peru, China, and the Maldives recording among the largest gains by 2015. Performance on the HAQ Index and individual causes showed distinct patterns by region and level of development, yet substantial heterogeneities emerged for several causes, including cancers in highest-SDI countries; chronic kidney disease, diabetes, diarrhoeal diseases, and lower respiratory infections among middle-SDI countries; and measles and tetanus among lowest-SDI countries. While the global HAQ Index average rose from 40·7 (95% uncertainty interval, 39·0–42·8) in 1990 to 53·7 (52·2–55·4) in 2015, far less progress occurred in narrowing the gap between observed HAQ Index values and maximum levels achieved; at the global level, the difference between the observed and frontier HAQ Index only decreased from 21·2 in 1990 to 20·1 in 2015. If every country and territory had achieved the highest observed HAQ Index by their corresponding level of SDI, the global average would have been 73·8 in 2015. Several countries, particularly in eastern and western sub-Saharan Africa, reached HAQ Index values similar to or beyond their development levels, whereas others, namely in southern sub-Saharan Africa, the Middle East, and south Asia, lagged behind what geographies of similar development attained between 1990 and 2015. This novel extension of the GBD Study shows the untapped potential for personal health-care access and quality improvement across the development spectrum. Amid substantive advances in personal health care at the national level, heterogeneous patterns for individual causes in given countries or territories suggest that few places have consistently achieved optimal health-care access and quality across health-system functions and therapeutic areas. This is especially evident in middle-SDI countries, many of which have recently undergone or are currently experiencing epidemiological transitions. The HAQ Index, if paired with other measures of health-system characteristics such as intervention coverage, could provide a robust avenue for tracking progress on universal health coverage and identifying local priorities for strengthening personal health-care quality and access throughout the world. Bill & Melinda Gates Foundation.

The evidence and method are limited for the associations between mortality and temperature variability (TV) within or between days. We developed a novel method to calculate TV and investigated TV-mortality associations using a large multicountry data set. We collected daily data for temperature and mortality from 372 locations in 12 countries/regions (Australia, Brazil, Canada, China, Japan, Moldova, South Korea, Spain, Taiwan, Thailand, the United Kingdom, and the United States). We calculated TV from the standard deviation of the minimum and maximum temperatures during the exposure days. Two-stage analyses were used to assess the relationship between TV and mortality. In the first stage, a Poisson regression model allowing over-dispersion was used to estimate the community-specific TV-mortality relationship, after controlling for potential confounders. In the second stage, a meta-analysis was used to pool the effect estimates within each country. There was a significant association between TV and mortality in all countries, even after controlling for the effects of daily mean temperature. In stratified analyses, TV was still significantly associated with mortality in cold, hot, and moderate seasons. Mortality risks related to TV were higher in hot areas than in cold areas when using short TV exposures (0-1 days), whereas TV-related mortality risks were higher in moderate areas than in cold and hot areas when using longer TV exposures (0-7 days). The results indicate that more attention should be paid to unstable weather conditions in order to protect health. These findings may have implications for developing public health policies to manage health risks of climate change. Guo Y, Gasparrini A, Armstrong BG, Tawatsupa B, Tobias A, Lavigne E, Coelho MS, Pan X, Kim H, Hashizume M, Honda Y, Guo YL, Wu CF, Zanobetti A, Schwartz JD, Bell ML, Overcenco A, Punnasiri K, Li S, Tian L, Saldiva P, Williams G, Tong S. 2016. Temperature variability and mortality: a multi-country study. Environ Health Perspect 124:1554-1559; http://dx.doi.org/10.1289/EHP149.

This paper exploits a sharp reduction in patient cost sharing at age 70 in Japan, using a regression discontinuity design to examine its effect on utilization, health, and financial risk arising from out-of-pocket expenditures. Due to the national policy, cost sharing is 60-80 percent lower at age 70 than at age 69. I find that both outpatient and inpatient care are price sensitive among the elderly. While I find little impact on mortality and other health outcomes, the results show that reduced cost sharing is associated with lower out-of-pocket expenditures, especially at the right tail of the distribution.

This study analyzes the role of education in the outcomes of the reform of the Japanese annual health checkup program. In April 2008, the annual checkup was redesigned to address concerns about metabolic syndrome. As the checkup is mandatory only for salaried workers, their participation rate is significantly higher than other workers; thus, they were most affected by the reform. Using institutional information, a difference-in-differences estimation was conducted with salaried workers as the treatment group and self-employed workers as the control group. We found that the reform caused significant changes in health behaviors and outcomes only among university graduates who were at a relatively high risk of metabolic syndrome. This highly educated group increased their physical activity, brought energy intake close to an ideal level, and achieved significant weight loss and BMI reduction to levels that minimize all-cause mortality among middle-aged Japanese. A secondary analysis implies that the difference in cognitive functioning test scores may be a critical factor in explaining the heterogeneous responses to the reform, suggesting that thoroughly well-articulated recommendations for healthy behaviors are needed in order to improve reform uptake.