Wei Lyu
Datos Biográficos
| ID | 5535291 |
|---|---|
| NOMBRE | Wei Lyu |
| NOMBRES | Wei |
| APELLIDO | Lyu |
| FIRMA | LYU W |
| AFILIACIONES | Peking University |
| ORCID | 0000-0001-7441-9961 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 18 |
| TOTAL DE CITAS | 0 |
| TOTAL COMO AUTOR | 18 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2019 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 0 |
Human mobility dynamics for cost-effective flood emergency resource allocation
Association between physical activity level and frailty status among community-dwelling older adults with multimorbidity
Objective To examine the cross-sectional association between physical activity characteristics and frailty status among community-dwelling older adults with multimorbidity, and to provide descriptive evidence for community-level health promotion in this high-risk population. Methods A cross-sectional survey was conducted among 500 community-dwelling older adults with multimorbidity. Frailty was assessed using the FRAIL scale and classified into t…
Non-linear responses and biocultural buffering of ancient tree multi-dimensional diversity along an urbanisation gradient
Networks of Digital Addiction Symptoms
Digital addictions, such as Internet, game, social media, and smartphone addiction, pose health risks. This cross-sectional online survey of 1,764 participants aged 16-28 (75.7 percent women) identified four addiction subtypes using specific scales. Network analysis revealed significant comorbidity (95.35 percent) among subtypes, with smartphone addiction playing a dominant role, leading to social media, Internet, and potentially game addiction. …
How Service Robot Anthropomorphism and Employee Self-Efficacy Shape Collaborative Performance
This study aims to elucidate the mechanisms through which service robot anthropomorphism and employee self-efficacy influence human-robot collaborative performance in the service industry. A conceptual model was developed in which perceived usefulness, perceived ease of use, perceived competence, and collaborative intention operate as multiple mediators, clarifying how robot-assisted collaboration enhances performance. Using structural equation m…
Global patterns and health impact of unintentional injuries among children and adolescents, 1990–2021
Unintentional injuries significantly threaten the health of children and adolescents globally. Annually, injuries result in approximately five million deaths worldwide, with around 12% occurring in children. This study investigates global trends in incidence, mortality, and disability-adjusted life years (DALYs) associated with unintentional injuries among children and adolescents from 1990 to 2021. Methods: We conducted an analysis of global uni…
Major depressive disorders in children aged 5–14 years
Background: Major depressive disorder (MDD) is an increasingly recognized contributor to morbidity and disability among children globally. While adolescent mental health has received growing attention, the burden and drivers of MDD in children aged 5-14 years remain inadequately characterized at the global level. Methods: We conducted a comprehensive analysis using Global Burden of Disease (GBD) 2021 data to quantify trends in the prevalence, inc…
Expansion of the Earned Income Tax Credit for Young Adults and Mental Health of US Home Renters, 2021–2023
Objectives. To evaluate the impact of the temporary expansion of the Earned Income Tax Credit (EITC) for childless adults in 2021 on the mental health of home renters and homeowners. Methods. We used US Behavioral Risk Factor Surveillance System data from 2021 through 2023. Mental health outcomes included the number of mentally unhealthy days in the past 30 days and an indicator for frequent mental distress (14 or more unhealthy days). We used a …
Effects of Expanding Medicaid Dental Coverage on General Health Status of Low-Income Adults
BACKGROUND: Oral health is considered a key component of general health. However, causal evidence examining the effects of dental coverage on general health is sparse. OBJECTIVES: To examine the effects of the Affordable Care Act (ACA) Medicaid expansions with extensive dental benefits versus less generous dental benefits on the general health status of individuals with low income. RESEARCH DESIGN: A difference-in-differences design comparing sta…
Predicting human mobility flows in response to extreme urban floods
Effects of the Families First Coronavirus Response Act on Coverage Continuity and Access for Medicaid Beneficiaries
The Families First Coronavirus Response Act (FFCRA) enacted in March 2020 prohibited states from redetermining Medicaid eligibility until March 31st, 2023. However, there has been little direct evidence on how the FFCRA affected coverage continuity, health care access and utilization among Medicaid beneficiaries. In this cross-sectional study, we employ data from the 2015 to 2022 National Health Interview Survey and a difference-in-differences de…
Effects of Virginia’s 2019 Medicaid Expansion on Health Insurance Coverage, Access to Care, and Health Status
Virginia expanded Medicaid under the Affordable Care Act beginning in January 2019, which substantially increased income eligibility up to 138% of the federal poverty level (FPL) for both childless adults and parents. In this study, we examined the effects of Virginia's Medicaid expansion in 2019 on health insurance coverage, access to care, and health status by employing a difference-in-differences and a synthetic control design. The study inclu…
Effects of Repealing the ACA Individual Mandate Penalty on Insurance Coverage and Marketplace Enrollment
BACKGROUND: Congress eliminated the individual mandate penalty of the Affordable Care Act (ACA) effective January 1, 2019. OBJECTIVE: To examine the effects of repealing the ACA mandate penalty on private health insurance coverage and marketplace enrollment by leveraging state-based mandates in Massachusetts and New Jersey. RESEARCH DESIGN: We employ synthetic control and difference-in-differences methods to compare insurance and enrollment chang…
Community Use Of Face Masks And Covid-19: Evidence From A Natural Experiment Of State Mandates In The US
State policies mandating public or community use of face masks or covers in mitigating the spread of coronavirus disease 2019 (COVID-19) are hotly contested. This study provides evidence from a natural experiment on the effects of state government mandates for face mask use in public issued by fifteen states plus Washington, D.C., between April 8 and May 15, 2020. The research design is an event study examining changes in the daily county-level C…
Effects of the Recent Medicaid Expansions on Dental Preventive Services and Treatments
BACKGROUND: Low-income adults in the United States have historically had poor access to dental services largely due to limited dental coverage. OBJECTIVE: We examined the effects of recent Medicaid income-eligibility expansions under the Affordable Care Act on dental visits separately for preventive care and treatments. RESEARCH DESIGN: We used restricted data from the 2011 to 2016 Medical Expenditure Panel Survey with state geocodes. The main an…
The Impact of the ACA Medicaid Expansions on Dental Visits by Dental Coverage Generosity and Dentist Supply
BACKGROUND: Low-income adults in the United States have historically had limited access to dental coverage and poor dental health outcomes. OBJECTIVE: We examined the effects of the Affordable Care Act Medicaid expansions on dental visits among low-income adults focusing on the generosity of dental coverage and heterogeneity in effects by dentist supply. RESEARCH DESIGN: We used data from 2012, 2014, and 2016 Behavioral Risk Factor Surveillance S…
The Effects of the Patient Protection and Affordable Care Act on Children’s Health Coverage
BACKGROUND: Prior research of the impacts of the Patient Protection and Affordable Care Act (PPACA) on children's health coverage has been largely descriptive and focused on the Medicaid expansions. OBJECTIVE: This study examined the causal impacts of the PPACA Medicaid expansions and of the PPACA as a whole on children's health coverage through 2016. RESEARCH DESIGN: We utilized quasiexperimental difference in differences designs to estimate the…
The Impacts of the ACA Medicaid Expansions on Cancer Screening Use by Primary Care Provider Supply
BACKGROUND: Recent studies of the impacts of the Affordable Care Act (ACA) Medicaid expansions on cancer screening use have mostly found insignificant effects. We posit that these findings mask meaningful heterogeneity in impacts depending on availability of primary care providers. OBJECTIVE: This study examined the impacts of the ACA Medicaid expansions on cancer screening use separately by state-level supply of primary care providers. RESEARCH …
Sin obras prominentes en esta página.
The Impact of the ACA Medicaid Expansions on Dental Visits by Dental Coverage Generosity and Dentist Supply
BACKGROUND: Low-income adults in the United States have historically had limited access to dental coverage and poor dental health outcomes. OBJECTIVE: We examined the effects of the Affordable Care Act Medicaid expansions on dental visits among low-income adults focusing on the generosity of dental coverage and heterogeneity in effects by dentist supply. RESEARCH DESIGN: We used data from 2012, 2014, and 2016 Behavioral Risk Factor Surveillance S…
The Effects of the Patient Protection and Affordable Care Act on Children’s Health Coverage
BACKGROUND: Prior research of the impacts of the Patient Protection and Affordable Care Act (PPACA) on children's health coverage has been largely descriptive and focused on the Medicaid expansions. OBJECTIVE: This study examined the causal impacts of the PPACA Medicaid expansions and of the PPACA as a whole on children's health coverage through 2016. RESEARCH DESIGN: We utilized quasiexperimental difference in differences designs to estimate the…
The Impacts of the ACA Medicaid Expansions on Cancer Screening Use by Primary Care Provider Supply
BACKGROUND: Recent studies of the impacts of the Affordable Care Act (ACA) Medicaid expansions on cancer screening use have mostly found insignificant effects. We posit that these findings mask meaningful heterogeneity in impacts depending on availability of primary care providers. OBJECTIVE: This study examined the impacts of the ACA Medicaid expansions on cancer screening use separately by state-level supply of primary care providers. RESEARCH …
Community Use Of Face Masks And Covid-19: Evidence From A Natural Experiment Of State Mandates In The US
State policies mandating public or community use of face masks or covers in mitigating the spread of coronavirus disease 2019 (COVID-19) are hotly contested. This study provides evidence from a natural experiment on the effects of state government mandates for face mask use in public issued by fifteen states plus Washington, D.C., between April 8 and May 15, 2020. The research design is an event study examining changes in the daily county-level C…
Effects of the Recent Medicaid Expansions on Dental Preventive Services and Treatments
BACKGROUND: Low-income adults in the United States have historically had poor access to dental services largely due to limited dental coverage. OBJECTIVE: We examined the effects of recent Medicaid income-eligibility expansions under the Affordable Care Act on dental visits separately for preventive care and treatments. RESEARCH DESIGN: We used restricted data from the 2011 to 2016 Medical Expenditure Panel Survey with state geocodes. The main an…
Effects of Virginia’s 2019 Medicaid Expansion on Health Insurance Coverage, Access to Care, and Health Status
Virginia expanded Medicaid under the Affordable Care Act beginning in January 2019, which substantially increased income eligibility up to 138% of the federal poverty level (FPL) for both childless adults and parents. In this study, we examined the effects of Virginia's Medicaid expansion in 2019 on health insurance coverage, access to care, and health status by employing a difference-in-differences and a synthetic control design. The study inclu…
Effects of Repealing the ACA Individual Mandate Penalty on Insurance Coverage and Marketplace Enrollment
BACKGROUND: Congress eliminated the individual mandate penalty of the Affordable Care Act (ACA) effective January 1, 2019. OBJECTIVE: To examine the effects of repealing the ACA mandate penalty on private health insurance coverage and marketplace enrollment by leveraging state-based mandates in Massachusetts and New Jersey. RESEARCH DESIGN: We employ synthetic control and difference-in-differences methods to compare insurance and enrollment chang…
Predicting human mobility flows in response to extreme urban floods
Effects of the Families First Coronavirus Response Act on Coverage Continuity and Access for Medicaid Beneficiaries
The Families First Coronavirus Response Act (FFCRA) enacted in March 2020 prohibited states from redetermining Medicaid eligibility until March 31st, 2023. However, there has been little direct evidence on how the FFCRA affected coverage continuity, health care access and utilization among Medicaid beneficiaries. In this cross-sectional study, we employ data from the 2015 to 2022 National Health Interview Survey and a difference-in-differences de…
Global patterns and health impact of unintentional injuries among children and adolescents, 1990–2021
Unintentional injuries significantly threaten the health of children and adolescents globally. Annually, injuries result in approximately five million deaths worldwide, with around 12% occurring in children. This study investigates global trends in incidence, mortality, and disability-adjusted life years (DALYs) associated with unintentional injuries among children and adolescents from 1990 to 2021. Methods: We conducted an analysis of global uni…
Major depressive disorders in children aged 5–14 years
Background: Major depressive disorder (MDD) is an increasingly recognized contributor to morbidity and disability among children globally. While adolescent mental health has received growing attention, the burden and drivers of MDD in children aged 5-14 years remain inadequately characterized at the global level. Methods: We conducted a comprehensive analysis using Global Burden of Disease (GBD) 2021 data to quantify trends in the prevalence, inc…
Expansion of the Earned Income Tax Credit for Young Adults and Mental Health of US Home Renters, 2021–2023
Objectives. To evaluate the impact of the temporary expansion of the Earned Income Tax Credit (EITC) for childless adults in 2021 on the mental health of home renters and homeowners. Methods. We used US Behavioral Risk Factor Surveillance System data from 2021 through 2023. Mental health outcomes included the number of mentally unhealthy days in the past 30 days and an indicator for frequent mental distress (14 or more unhealthy days). We used a …
Effects of Expanding Medicaid Dental Coverage on General Health Status of Low-Income Adults
BACKGROUND: Oral health is considered a key component of general health. However, causal evidence examining the effects of dental coverage on general health is sparse. OBJECTIVES: To examine the effects of the Affordable Care Act (ACA) Medicaid expansions with extensive dental benefits versus less generous dental benefits on the general health status of individuals with low income. RESEARCH DESIGN: A difference-in-differences design comparing sta…
Human mobility dynamics for cost-effective flood emergency resource allocation
Association between physical activity level and frailty status among community-dwelling older adults with multimorbidity
Objective To examine the cross-sectional association between physical activity characteristics and frailty status among community-dwelling older adults with multimorbidity, and to provide descriptive evidence for community-level health promotion in this high-risk population. Methods A cross-sectional survey was conducted among 500 community-dwelling older adults with multimorbidity. Frailty was assessed using the FRAIL scale and classified into t…
Non-linear responses and biocultural buffering of ancient tree multi-dimensional diversity along an urbanisation gradient
Networks of Digital Addiction Symptoms
Digital addictions, such as Internet, game, social media, and smartphone addiction, pose health risks. This cross-sectional online survey of 1,764 participants aged 16-28 (75.7 percent women) identified four addiction subtypes using specific scales. Network analysis revealed significant comorbidity (95.35 percent) among subtypes, with smartphone addiction playing a dominant role, leading to social media, Internet, and potentially game addiction. …
How Service Robot Anthropomorphism and Employee Self-Efficacy Shape Collaborative Performance
This study aims to elucidate the mechanisms through which service robot anthropomorphism and employee self-efficacy influence human-robot collaborative performance in the service industry. A conceptual model was developed in which perceived usefulness, perceived ease of use, perceived competence, and collaborative intention operate as multiple mediators, clarifying how robot-assisted collaboration enhances performance. Using structural equation m…
Medicine (10 obras) · Environmental health (9 obras) · Health care (8 obras) · Medicaid (8 obras) · Healthcare Policy and Management (7 obras) · Population (7 obras) · Food Security and Health in Diverse Populations (5 obras) · Poverty (5 obras) · Demographic economics (4 obras) · Economic growth (4 obras)