Yafei Si

ORCID: 0000-0001-9334-8230
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About
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Research Areas
  • Global Health Care Issues
  • Healthcare Systems and Reforms
  • Health disparities and outcomes
  • Healthcare Policy and Management
  • Global Maternal and Child Health
  • Global Public Health Policies and Epidemiology
  • Health Systems, Economic Evaluations, Quality of Life
  • Healthcare cost, quality, practices
  • Mobile Health and mHealth Applications
  • Chronic Disease Management Strategies
  • Healthcare Systems and Technology
  • Primary Care and Health Outcomes
  • Artificial Intelligence in Healthcare and Education
  • Patient Satisfaction in Healthcare
  • Retirement, Disability, and Employment
  • Climate Change and Health Impacts
  • Obesity, Physical Activity, Diet
  • Intergenerational Family Dynamics and Caregiving
  • Telemedicine and Telehealth Implementation
  • Assisted Reproductive Technology and Twin Pregnancy
  • Frailty in Older Adults
  • COVID-19 epidemiological studies
  • COVID-19 and healthcare impacts
  • COVID-19 Pandemic Impacts
  • Aging and Gerontology Research

UNSW Sydney
2020-2025

University of Washington
2024

Australian Research Council
2023-2024

Institute for Health Metrics and Evaluation
2024

City, University of London
2024

Zhejiang International Studies University
2023

Zhejiang University
2023

Duke Kunshan University
2023

Guangzhou University
2020

Xi'an Jiaotong University
2017-2020

Abstract Background The World Health Organization has proposed a model of healthy aging built around the concept functional ability, comprising an individual’s intrinsic capacity, physical and social environment they occupy, interactions between two. However, these constructs have been poorly defined. We examined structure capacity in representative sample Chinese population aged 60 years older assessed its value predicting declining performance instrumental activities daily living (IADLs)...

10.1093/gerona/glab226 article EN The Journals of Gerontology Series A 2021-08-03

China has three basic health insurance schemes: Urban Employee Basic Medical Insurance (UEBMI), Resident (URBMI) and New Rural Cooperative Scheme (NRCMS). This study aimed to compare the equity of health-related quality life (HRQoL) residents under any two schemes. Using data from 5th National Health Services Survey Shaanxi Province, China, coarsened exact matching method was employed control confounding factors. We included a matched sample 6802 respondents between UEBMI URBMI, 34,169...

10.1186/s12955-018-0868-0 article EN cc-by Health and Quality of Life Outcomes 2018-03-07

China has been undergoing tremendous demographic and epidemiological transitions during the past three decades increasing burden from non-communicable diseases an ageing population have presented great health-care challenges for country. Numerous studies examine catastrophic healthcare expenditures (CHE) worldwide on whole populations rather than specific vulnerable groups. As hypertension other chronic conditions impose a growing share of disease in China, they will become increasingly...

10.1186/s12939-016-0506-6 article EN cc-by International Journal for Equity in Health 2017-01-20

The inequality of health human resource is a worldwide problem, and solving it also one the major goals China's recent system reform. Yet there huge disparity among cities in mainland China. aim this study to analyze distribution 322 prefecture-level China 2014, reveal facets causes inequalities. data for were acquired from provincial municipal Health Statistics Yearbook (2014) Statistical (2014), National Economic Bulletin official websites governments, involving cities. Meanwhile,...

10.1186/s12939-018-0742-z article EN cc-by International Journal for Equity in Health 2018-02-27

Objective To investigate the contribution of early-life factors on intrinsic capacity Chinese adults older than 45 years.Methods We used data 21 783 participants from waves 1 (2011) and 2 (2013) China Health Retirement Longitudinal Study (CHARLS), who also participated in 2014 CHARLS Life History Survey to calculate a previously validated measure capacity.We considered 11 investigated their direct association with participants' later life, as well indirect through four current socioeconomic...

10.2471/blt.22.288888 article EN Bulletin of the World Health Organization 2023-05-01

Abstract Background Improving health equity is a fundamental goal for establishing social insurance. This article evaluated the benefits of Integration Social Medical Insurance (ISMI) policy services utilization in rural China. Methods Using China Health and Retirement Longitudinal study (2011‒2018), we estimated changes rates by generalized linear mixed model, concentration curves, indices, horizontal inequity index before after introduction ISMI policy. Results For rates, model showed that...

10.1186/s12939-021-01457-8 article EN cc-by International Journal for Equity in Health 2021-05-24

Background: China has the largest number of aging people in need long-term care, among whom 70% have chronic diseases. For policy planners, it is necessary to understand different levels needs care and provide insurance ensure all can be met. Methods: This study combines 2013 wave CHARLS survey Life Course Survey 2014. The combination allows us factor both childhood adulthood data life-course analysis. We identified 7,734 older adults with diseases for defined by presence functional...

10.3390/ijerph17072559 article EN International Journal of Environmental Research and Public Health 2020-04-08

Effective patient-physician communication has been considered a central clinical function and core value of health system. Currently, there are no studies directly evaluating the association between patient-centered (PCC) primary care quality in urban China. This study aims to investigate PCC quality. The standardized patients were used measure care. We recruited 12 from local communities presenting fixed cases (unstable angina asthma), including 492 interactions physicians across 63 CHCs...

10.3389/fpubh.2021.779293 article EN cc-by Frontiers in Public Health 2022-02-04

Population ageing is a transforming demographic force. To support evidence-based efforts for promoting healthy ageing, summary of data availabilities and gaps to study needed. Through multifaceted search strategy, we identified relevant cohort studies worldwide studying provided available pertinent measurements. Following the World Health Organization's definition extracted information on intrinsic capacity domains sociodemographic, social, environmental factors. We 287 studies. South...

10.1016/j.arr.2024.102277 article EN cc-by Ageing Research Reviews 2024-03-17

Using simulated patients to mimic 9 established noncommunicable and infectious diseases, we assessed ChatGPT’s performance in treatment recommendations for common diseases low- middle-income countries. ChatGPT had a high level of accuracy both correct diagnoses (20/27, 74%) medication prescriptions (22/27, 82%) but concerning unnecessary or harmful medications (23/27, 85%) even with diagnoses. performed better managing than ones. These results highlight the need cautious AI integration...

10.2196/56121 article EN cc-by Journal of Medical Internet Research 2024-09-09

Hypertension has become a global health challenge given its high prevalence and but low awareness detection. Whether the actual of hypertension been estimated is important, especially for poor. This study aimed to measure tested self-reported compare inequity between them in China.Data were derived from China Health Nutrition Survey (CHNS) conducted 2011. By using multistage, stratified, random sampling method, 12,168 respondents aged 18 or older identified analysis. Both (systolic blood...

10.1186/s12939-018-0796-y article EN cc-by International Journal for Equity in Health 2018-06-15

The aim of this study was to estimate the effects maternal text messages on inappropriate weight for gestational age (IWGA) in newborns rural China. Participants were pregnant women presenting antenatal care at a Maternal and Child Health Center Xi'an, China during 2013-2015 period. In total, 2115 completed program with follow-up information included final analyses. All mothers divided into four groups, including (1) control group that received only few "Basic" messages, (2) Care-Seeking...

10.3390/ijerph17051482 article EN International Journal of Environmental Research and Public Health 2020-02-25

China's New Cooperative Medical Scheme (NCMS) enables insured citizens to enjoy the same benefit package by paying a flat-rate premium. However, it still remains uncertain whether economically disadvantaged enrollees receive insurance benefits that at least match those of non-disadvantaged enrollees. This article, therefore, estimates distribution under NCMS across economic groups and compares magnitude economic-related inequity changes in benefits. Data were drawn from two-wave large-scale...

10.1186/s12939-018-0852-7 article EN cc-by International Journal for Equity in Health 2018-09-05

Background: In China, tobacco consumption is a leading risk factor for non-communicable diseases, and understanding the pattern of socio-economic inequalities will, thus, help to develop targeted policies public health control. Methods: Data came from China Health Retirement Longitudinal Study in 2013, involving 17,663 respondents aged 45 above. Tobacco use prevalence quantities were defined further analysis. Using concentration index (CI) its decomposition, grouped by gender estimated....

10.3390/ijerph15071466 article EN International Journal of Environmental Research and Public Health 2018-07-11

Objective Despite the latest wave of China’s healthcare reform initiated in 2009 has achieved unprecedented progress rural areas, little is known for specific vulnerable groups’ catastrophic health expenditure (CHE) urban China. This study aims to estimate trend incidence, intensity and inequality CHE hypertension households (households with one or more than patient) Shaanxi, China from 2008 2013. Methods Based on fourth fifth National Health Service Surveys we identified 460 1289 2013,...

10.1136/bmjopen-2018-023033 article EN cc-by-nc BMJ Open 2019-05-01

Objectives The aim of this study was to analyse the status regarding inequities in adult obesity and central China. Thus, income-related inequality for both diseases underlying factors were examined. Methods design China Health Nutrition Survey (CHNS)—conducted from 1997 2011—included 128 307 participants; study, 79 566 individuals classified as obese 65 250 regarded suffering according CHNS analysed. A body mass index greater than 27 considered indicative obesity; men women with a waist...

10.1136/bmjopen-2019-034288 article EN cc-by-nc BMJ Open 2020-10-01

Previous studies have been limited by not directly comparing the quality of public and private CHCs using a standardized patient method (SP). This study aims to evaluate compare primary care provided in urban China. We recruited 12 patients from local community presenting fixed cases (unstable angina asthma), including 492 interactions between physicians across 63 Xi’an, measured on seven criteria: (1) adherence checklists, (2) correct diagnosis, (3) treatment, (4) number unnecessary exams...

10.3390/ijerph18105060 article EN International Journal of Environmental Research and Public Health 2021-05-11

Chronic disease has become one of the leading causes poverty in China, which posed heavy economic burden on individuals, households and society, accounts for an estimated 80% deaths 70% disability-adjusted life-years lost now China. This study aims to assess effect chronic diseases health payment-induced Shaanxi Province, China.The data was from 5th National Health Survey part China's Service (NHSS) conducted 2013. Totally, 20,700 were selected analysis. We used headcount, gap mean positive...

10.1186/s12913-018-3698-1 article EN cc-by BMC Health Services Research 2018-11-20

Along with economic growth and living standard improvement, hypertension has become one of the most prevalent chronic diseases in China. Self-reported measures tested may differ significantly due to low awareness prevalence. The objective this study is figure out whether how self-reported from terms prevalence equity.

10.1186/s12913-019-4289-5 article EN cc-by BMC Health Services Research 2019-07-01

Objectives: To evaluate the economic implications of payments based on Chinese diagnosis-related groups for critically ill patients in ICUs terms total hospital expenditure, out-of-pocket payments, and length stay. Design: A pre-post comparison patient cohorts admitted to 1 year before after group reform was undertaken. Demographic characteristics, clinical data, medical expenditures were collated from a health insurance database. Setting: Twenty-two public hospitals Sanming, Southern China....

10.1097/ccm.0000000000004355 article EN Critical Care Medicine 2020-04-17

The aim of this study was to assess the trends in equity receiving inpatient health service utilization (IHSU) China over period 2011-2018.

10.1186/s12889-021-11203-y article EN cc-by BMC Public Health 2021-06-16

Abstract Background The role of social environment, that is, the aggregate effect determinants health (SDOHs), in determining dementia is unclear. Methods We developed a novel polysocial risk score for based on 19 SDOH among 5 199 participants Health and Retirement Study, United States, to measure environmental risk. used survival analysis approach assess association between environment 2006–2020. further studied interaction lifestyles, explored racial disparities. Results study (mean age =...

10.1093/gerona/glae128 article EN The Journals of Gerontology Series A 2024-05-11
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