Despite technological breakthroughs, healthcare inequality remains a pressing public health challenge across developed and developing nations. Low levels of income or education mobility can exacerbate socioeconomic disparities, leaving children from disadvantaged families with fewer opportunities to improve their social and economic prospects. Moreover,  children in families with low-income backgrounds are also more likely to experience poor health outcomes, perpetuating a cycle of disadvantage.

Huixia Wang, a visiting scholar at Shorenstein APARC, sees this phenomenon as an opportunity to better understand the dynamics of intergenerational health and how to interrupt patterns of persistent health inequalities across generations. Her research aims to identify potential interventions to improve health outcomes in developing regions.

An associate professor at Hunan University, Wang has spent the 2024 fall quarter at APARC. She recently presented her research on the intricate dynamics of intergenerational health metrics, particularly in China and Indonesia. Watch her talk, “Intergenerational Persistence of Self-Reported Health Status and Biomarkers in Indonesia,” on our YouTube channel.

Barriers to Intergenerational Health

While much has been written about the transmission of income and education across generations, “much less is known about how health is passed down between generations," Wang notes, highlighting a gap in the existing research. Emphasizing that health is a crucial factor in determining overall well-being, as it affects everything from mental health to economic productivity and social mobility, she asserts that good health is linked to better educational outcomes, higher earning potential, and improved labor market performance. Poor health, on the other hand, is associated with lower educational attainment, reduced employment prospects, and higher rates of chronic illness.

Wang’s research approach centers on recognizing the multiple challenges in implementing maternal health-oriented policies. Having identified limited access to healthcare services as a significant barrier, she considers how, in many low-income and rural areas, “access to quality healthcare is constrained by poor infrastructure, lack of transportation, and shortages of healthcare professionals, making it difficult for pregnant women to receive essential care.”

Another obstacle is the prohibitive cost of healthcare. In countries where maternal health services are not subsidized or free, the financial burden of out-of-pocket expenses for transportation, medications, and other related costs can prevent women from accessing necessary care. Furthermore, Wang shows that low levels of maternal health education can contribute to poor health-seeking behaviors. “Many women may not recognize the warning signs of complications, may not fully understand the importance of prenatal care, or may be unaware of their rights to healthcare services,” she says.

Measuring Health Outcomes Across Generations

Wang acknowledges the difficulties in studying intergenerational health mobility, as it cannot be neatly defined and measured by observable metrics such as income or education. Health is much more subjective and varies from person to person. To gauge health outcomes, researchers must therefore rely on diverse and sometimes imprecise indicators, such as the presence of chronic diseases.

Moreover, to examine intergenerational mobility, researchers need data that includes health information for both parents and children. Such datasets are not always readily available, and those that do exist often lack the necessary granularity and long-term tracking to provide meaningful insights.

To overcome these challenges, Wang draws on a variety of panel data that tracks individuals over time, as well as survey data and self-reported status. For Wang, longitudinal studies are crucial for understanding how health disparities manifest and evolve over time. 

Using data from the Indonesia Family Life Survey, she combines subjective measures like self-reported health and objective measures such as pulse, BMI, hypertension, and anemia to capture a more complete picture of health mobility. This approach expands beyond previous studies, which typically relied on fewer health indicators and focused on developed countries. Her study includes a broad range of health variables and provides a unique look at the role of gender and socioeconomic factors in shaping health outcomes across generations.

Wang uses two primary methods for measuring intergenerational health mobility: one following the Intergenerational Health Association, which regresses children's health outcomes on those of their parents, and rank-rank regressions, which examine the persistence of health outcomes by analyzing percentile ranks. These techniques, adapted from income mobility research, allow her to assess health persistence and mobility across generations.

Future Directions and Policy Impact

Wang’s time at APARC has been instrumental in shaping and refining her research. "The opportunity to engage with experts from various fields [...] opened my eyes to new ways of thinking about my research," she shared. "The collaborative environment at APARC also made me realize how much I can learn from perspectives outside my immediate area of focus.”

Wang credits Stanford’s vibrant academic environment, with its rich array of seminars and talks, to broadening her understanding of Southeast Asian health systems, a subject she was less familiar with. She expressed gratitude to APARC faculty for their “invaluable guidance for both my research and my life at Stanford.” In particular,  APARC’s Asia Health Policy Program Director Karen Eggleston “dedicated a significant amount of time to advising my work, introducing me to key researchers in my field, and sharing the valuable resources that I might benefit from on campus,” Wang said.

Looking ahead, she is excited to continue exploring the role of health in intergenerational mobility, particularly in the Southeast Asian context, and plans to expand her research into the health effects of pollution, an area she has already begun to investigate. Wang also hopes to contribute to policymaking that addresses health inequality. By providing a deeper understanding of how health disparities are perpetuated across generations, she aims to inform policies that could improve health outcomes and reduce inequality in developing countries.

Wang’s research on intergenerational health mobility offers a fresh and much-needed perspective on the crucial yet understudied role of health in social mobility. She hopes her research helps policymakers and scholars address health inequalities that perpetuate socioeconomic disadvantage across generations.

The Walter H. Shorenstein Asia-Pacific Research Center (APARC) is pleased to invite applications for a host of fellowships in contemporary Asia studies to begin in Autumn quarter 2025.

The Center offers postdoctoral fellowships that promote multidisciplinary research on Asia-focused health policy, contemporary Japan, and contemporary Asia broadly defined, postdoctoral fellowships and visiting scholar positions with the Stanford Next Asia Policy Lab, and a fellowship for experts on Southeast Asia. Learn more about each opportunity and its eligibility and specific application requirements:

Asia Health Policy Program Postdoctoral Fellowship

Hosted by the Asia Health Policy Program at APARC, the fellowship is awarded to one recent PhD undertaking original research on contemporary health or healthcare policy of high relevance to countries in the Asia-Pacific region, especially developing countries. Appointments are for one year beginning in Autumn quarter 2025. The application deadline is December 1, 2024.

Japan Program Postdoctoral Fellowship

Hosted by the Japan Program at APARC, the fellowship supports research on contemporary Japan in a broad range of disciplines including political science, economics, sociology, law, policy studies, and international relations. Appointments are for one year beginning in Autumn quarter 2025. The application deadline is December 1, 2024.  

Shorenstein Postdoctoral Fellowship on Contemporary Asia

APARC offers two postdoctoral fellowship positions to junior scholars for research and writing on contemporary Asia. The primary research areas focus on political, economic, or social change in the Asia-Pacific region (including Northeast, Southeast, and South Asia), or international relations and international political economy in the region. Appointments are for one year beginning in Autumn quarter 2025. The application deadline is December 1, 2024. 
 

On October 18, as part of its autumn 2023 seminar series on APEC in advance of the organization's meeting in San Francisco in November, Shorenstein APARC and its Asia Health Policy Program (AHPP) presented the series' second event, Asia-Pacific Digital Health Innovation: Technology, Trust, and the Role of APEC. The featured panelists were Kiran Gopal Vaska, Director of the National Health Authority of India, and CK Cheruvettolil, the Senior Strategy Officer, Digital Health and Artificial Intelligence, at the Bill & Melinda Gates Foundation. Siyan Yi, the Director of the Integrated Research Program at the National University of Singapore and a former AHPP fellow, moderated the conversation.

While India is not an APEC member, Indian initiatives are examples of leveraging technology to better the health of the most vulnerable citizens in low- and middle-income countries (LMICs). Kiran Gopal Vaska gave an overview of the Ayushman Bharat Digital Mission (ABDM), India's latest health initiative that focuses on the interoperability of health records, services, and health claims. He stressed that ABDM was built on previous digital infrastructure, like Aadhaar, the national digital identity system, and Digilocker, a digital storage scheme for citizens' health and other records.

The approach India has taken is for the government to build the rails—the infrastructure of the system—and create a space where the private sector can develop applications integrated with that space through application programming interfaces (APIs), avoiding the siloing that can hamper the interoperability of data.

Regarding health data, privacy is a crucial concern at the patient level. ABDM addresses this concern through the use of a consent artifact. Individuals decide whether hospitals or other medical service providers have access to their data, and this access has levels of granularity: you can share specific portions of 7 different data types, like immunizations or prescriptions. You can limit that sharing to a particular period, like one day.

Also participating on the panel was CK Cheruvettolil, who discussed strategies by the Bill & Melinda Gates Foundation in leveraging the power of mobile phones to augment the work of Accredited Social Health Activists (ASHAs), the more than one million female frontline health workers in India. ASHAs can use mobile phone cameras, sensors, and streaming data to better care for low-birth-weight babies and other patients. 

He explained the critical role of taking local context into account when developing software by using the example of pregnant Indian women in their third trimesters. The custom for Indian mothers, especially in rural areas, is for the child to be born in the maternal grandparents' home. If software were to store only the mother's address, healthcare workers in the grandparents' jurisdiction would not know that a pregnant woman in the critical third trimester would soon be giving birth at a local address.

Kiran Gopal Vaska noted that India had solved the technological issues, and now the task was to push for adoption. He emphasized that the technologies underlying India's digital health stack were created as public goods for the world, and for LMICs to support each other in advancing digital health technologies, the key was interoperability, "using standards that are accessible and acceptable worldwide."

Telemedicine has faced an uphill battle in South Korea and in fact, under the nation’s Medical Services Act, it is currently prohibited, a result of opposition from the medical community and other stakeholders. However, during the height of the COVID-19 pandemic, the South Korean government temporarily allowed for prescriptions and counseling by phone, which gave investigators the opportunity to examine patient preferences toward the service. 

It has been demonstrated that for consultations on chronic diseases—diabetes, hypertension, and heart disease—telemedicine is effectively equal to in-person visits, and moreover is convenient. Previous studies have looked at patient attitudes toward telemedicine but not many have used the COVID-19 pandemic as a backdrop. 

A new study, published in the Asia Pacific Journal of Public Health, helps to address this knowledge gap. The researchers focused on patients with the chronic diseases of diabetes and hypertension in South Korea and asked them about their preferences for telemedicine versus in-person care, including under different levels of recommended social distancing.

The co-authors of the study are Karen Eggleston, director of the Asia Health Policy Program at Shorenstein APARC; Annie Chang, ’21, MS ’22, currently an MD candidate at Icahn School of Medicine at Mount Sinai in New York City, who started the project as a Stanford student; Richard Liang, MD/PhD candidate at Stanford, and Daejung Kim of the Korea Institute for Health and Social Affairs.

The data was collected from a larger study on the impacts of the pandemic on the management of chronic disease in a number of Asian countries.

Chang notes that her research with Eggleston began after taking her course Health and Healthcare Systems in East Asia: “As a Korean American, I was naturally interested in learning more about South Korea and its healthcare system. I had the opportunity to work with Dr. Eggleston during the COVID-19 pandemic, when telemedicine usage surged globally.”

The study findings indicate that respondents did not have a strong preference for telemedicine services during the COVID-19 pandemic. This could be attributed to the prohibition of such services outside of the pandemic, to unfamiliarity with the technology, or to other factors.

However, the results show that attitudes toward telemedicine differed among demographic segments: younger patients, who tend to be more familiar with new technologies, had a higher preference for telemedicine, as did males (who are more likely to be employed, restricting their time for in-person visits), and those whose access to healthcare was more restricted.

This research carries significant policy implications concerning the advancement of telemedicine in South Korea and elsewhere. To make better use of telemedicine, policymakers should raise awareness of and familiarity with the services, especially among older populations who are less comfortable with new technologies. There is also a need to develop basic guidelines for telemedicine practices like reimbursement and data security to encourage the adoption of telemedicine as a viable alternative to in-person consultations. 

This announcement was updated on October 6, 2023, to reflect the addition of two new fellowship offerings focused on contemporary Taiwan.

The Walter H. Shorenstein Asia-Pacific Research Center (APARC) is pleased to invite applications for a suite of fellowships in contemporary Asia studies to begin fall quarter 2024.

The Center offers postdoctoral fellowships that promote multidisciplinary research on Asia-focused health policy; contemporary Japan; contemporary Asia broadly defined; postdoctoral fellowships and visiting scholar positions as part of the new Stanford Next Asia Policy Lab; and a fellowship for experts on Southeast Asia. Learn more about each opportunity and its eligibility and specific application requirements:

Asia Health Policy Postdoctoral Fellowship

Hosted by the Asia Health Policy Program at APARC, the fellowship is awarded annually to one recent PhD undertaking original research on contemporary health or healthcare policy of high relevance to countries in the Asia-Pacific region, especially developing countries. Appointments are for one year beginning in fall quarter 2024. The application deadline is December 1, 2023.

Postdoctoral Fellowship on Contemporary Japan

Hosted by the Japan Program at APARC, the fellowship supports research on contemporary Japan in a broad range of disciplines including political science, economics, sociology, law, policy studies, and international relations. Appointments are for one year beginning in fall quarter 2024. The application deadline is December 1, 2023.  
 

Do increases in medical spending improve health outcomes? To answer this question, analysts need to quantify the net value of medical spending and measure the productivity of medical care with the output of improvement in survival and quality of life, thereby deducing for what medical conditions the “bang for the buck” is greatest and for what conditions spending outstrips gains in health improvement.

This condition-specific, quality-adjusted net value approach to health spending is known as a “satellite account for health” because it “orbits around” the national income and product accounts that include aggregate health spending to provide a clearer picture of productivity in the health sector. Thus far, researchers have applied this account to the U.S. health sector only, but it would be highly beneficial for many economies. One notable beneficiary would be South Korea, one of the most rapidly aging societies globally. Now new research by Karen Eggleston, the director of APARC’s Asia Health Policy Program, studies the link between medical spending and health outcomes in South Korea, providing evidence on the productivity of medical spending over recent decades.

The research, published by the East-West Center, develops an estimate of the net value of Korean medical spending, which has outpaced most other countries in recent decades. To generate this estimate, Eggleston compares the gains in life expectancy at birth to the increases in medical spending for 2000–2019. Data comes from Korean lifetables and medical expenditures per capita, available from the Korean Statistical Information Services.

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Eggleston shows that, even with the most conservative assumptions ($50,000 per life-year and only 10 percent of health gains due to medical care), the net value of Korean medical spending is positive and substantial. Korean life expectancy at birth increased from 76 in 2000 to 83.3 in 2019, while lifetime medical spending increased by over $19,000. The value of 7.3 additional years of life far outweighs even this rapid increase in spending, implying substantial productivity growth in Korea’s health sector.

Moreover, evidence on condition-specific spending changes and health improvements suggests that Korea’s rapid spending increases yield significant net value. Eggleston’s research indicates that improvements in survival for key conditions afflicting Koreans, such as stroke and cancer, point to productivity gains. “Korea could be a pioneer in developing a national health account that accurately measures net value by medical condition,” she writes.

Condition-specific metrics of health gain per won spent on treatment can help to guide the allocation of investments to promote longer, healthier lives. In the future, analysts could also link condition-specific improvements in survival and morbidity to earnings. Such linkage would particularly benefit South Korea, where focusing on the productivity of older adult employment is crucial given its high labor force participation and relatively low income of older Koreans.

Eggleston advocates for the Korean government to develop a national satellite account for health that can provide valuable evidence for prioritizing investments to address the country’s most pressing health challenges so that productivity improvement will contribute to longer, healthier lives. “By linking National Health Insurance and health outcome data, Korea could develop an accurate measure of medical productivity and a more accurate measure of overall economic productivity, while pioneering development of ‘health satellite accounts’ for overall populations,” Eggleston argues.