Yea‐Hung Chen
Datos Biográficos
| ID | 6652412 |
|---|---|
| NOMBRE | Yea‐Hung Chen |
| NOMBRES | Yea‐Hung |
| APELLIDO | Chen |
| FIRMA | CHEN Y H |
| AFILIACIONES | San Francisco Department of Public Health |
| ORCID | 0000-0002-7949-0692 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 31 |
| TOTAL DE CITAS | 20 |
| TOTAL COMO AUTOR | 31 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2009 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 2 |
Inequities in Excess Pandemic Mortality Among Documented and Undocumented Immigrants in California, 2020–2023
Objectives. To examine how excess mortality during the COVID-19 pandemic differed by legal status and its intersections with sociodemographic factors, overall and among working-age Latinos. Methods. Using death records from Californian adults (aged ≥ 25 years) with a natural cause of death, we estimated excess mortality between March 2020 and May 2023, using ARIMA (autoregressive integrated moving average) models fit to prepandemic data spanning …
Excess Fatal Overdoses in the United States During the Covid-19 Pandemic by Geography and Substance Type
Objectives. To assess heterogeneity in pandemic-period excess fatal overdoses in the United States, by location (state, county) and substance type. Methods. We used seasonal autoregressive integrated moving average (SARIMA) models to estimate counterfactual death counts in the scenario that no pandemic had occurred. Such estimates were subtracted from actual death counts to assess the magnitude of pandemic-period excess mortality between March 20…
Examining Excess Mortality Among Critical Workers in Minnesota During 2020–2021
Objectives. To understand the occupational risk associated with COVID-19 among civilian critical workers (aged 16–65 years) in Minnesota. Methods. We estimated excess mortality in 2020 to 2021 for critical occupations in different racial groups and vaccine rollout phases using death certificates and occupational employment rates for 2017 to 2021. Results. Excess mortality during the COVID-19 pandemic was higher for workers in critical occupations…
Outdoor Activities Associated with Lower Odds of Sars-CoV-2 Acquisition
Access to recreational physical activities, particularly in outdoor spaces, has been a crucial outlet for physical and mental health during the COVID-19 pandemic. There is a need to understand how conducting these activities modulates the risk of SARS-CoV-2 infection. In this case-control study of unvaccinated individuals conducted in San Francisco, California, the odds of testing positive to SARS-CoV-2 were lower for those who conducted physical…
Increases in HIV status disclosure and sexual communication between South African men who have sex with men and their partners following use of HIV self-testing kits
Availability of HIV self-testing may increase HIV testing frequency among men who have sex with men (MSM). It is unclear, however, if self-testing may impact HIV-related sexual behaviors among MSM, including HIV status disclosure and condom use. We conducted a mixed methods analysis of changes in HIV-related behaviors after HIV self-testing introduction, using data from 110 MSM participating in a feasibility and acceptability study of HIV self-te…
A descriptive analysis of 2020 California Occupational Safety and Health Administration covid-19-related complaints
COVID-19 mortality has disproportionately affected specific occupations and industries. The Occupational Safety and Health Administration (OSHA) protects the health and safety of workers by setting and enforcing standards for working conditions. Workers may file OSHA complaints about unsafe conditions. Complaints may indicate poor workplace safety during the pandemic. We evaluated COVID-19-related complaints filed with California (Cal)/OSHA betwe…
Excess mortality among Latino people in California during the Covid-19 pandemic
Latino people in the US are experiencing higher excess deaths during the COVID-19 pandemic than any other racial/ethnic group, but it is unclear which sociodemographic subgroups within this diverse population are most affected. Such information is necessary to target policies that prevent further excess mortality and reduce inequities. Using death certificate data for January 1, 2016 through February 29, 2020 and time-series models, we estimated …
Community Levels of PrEP Use Among Men Who Have Sex with Men by Race/Ethnicity, San Francisco, 2017
Will We Get to Zero HIV Stigma in San Francisco
Increases in Pre-exposure Prophylaxis Use and Decreases in Condom Use
Starfish Sampling”
Associations between depressive syndromes and HIV risk behaviors among San Francisco men who have sex with men
HIV prevention plans for men who have sex with men (MSM) are often multifaceted. They involve reduction of sexual risk behaviors, such as condomless intercourse, but also often include pharmaceutical approaches, such as early treatment of HIV-infected individuals with antiretroviral therapy (ART). Effectiveness is possibly threatened by individual-level factors, such as depression. In this study of 322 San Francisco MSM (240 HIV-uninfected indivi…
Condomless Anal Sex Among HIV-Positive Men Who Have Sex with Men
A Novel Modeling Approach for Estimating Patterns of Migration into and out of San Francisco by HIV Status and Race among Men Who Have Sex with Men
The Impact of Discrimination on the Mental Health of Trans*Female Youth and the Protective Effect of Parental Support
Pre-exposure Prophylaxis (PrEP) Use, Seroadaptation, and Sexual Behavior Among Men Who Have Sex with Men, San Francisco, 2004–2014
A Web 2.0 and Epidemiology Mash-Up
Estimating Incidence of HIV Infection Among Men Who Have Sex with Men, San Francisco, 2004–2014
Estimated Number of People Who Inject Drugs in San Francisco, 2005, 2009, and 2012
Differential HIV Risk for Racial/Ethnic Minority Trans*female Youths and Socioeconomic Disparities in Housing, Residential Stability, and Education
Objectives. We examined HIV prevalence and risk behaviors of 282 trans*female youths aged 16 to 24 years participating in the San Francisco Bay Area, California, SHINE study from 2012 to 2013 to determine differences between racial/ethnic minority and White youths. Methods. We conducted the χ 2 test to determine distributional differences between racial/ethnic minority and White participants in sociodemographic factors, HIV-related risk behaviors…
Risk behaviors for HIV in sexual partnerships of San Francisco injection drug users
While injection drug users (IDU) in the USA are known to form sexual partnerships with IDU as well as non-IDU, scientific research is lacking regarding risk behaviors for HIV transmission within these partnerships. Such information could aid HIV-prevention efforts among IDU and could also explain the relatively low prevalence of HIV among non-IDU heterosexuals in US cities such as San Francisco. Using data from a cross-sectional sample of San Fra…
Connecting the Dots
A randomized control trial of personalized cognitive counseling to reduce sexual risk among HIV-infected men who have sex with men
The increased life expectancy and well-being of HIV-infected persons presents the need for effective prevention methods in this population. Personalized cognitive counseling (PCC) has been shown to reduce unprotected anal intercourse (UAI) with a partner of unknown or different serostatus among HIV-uninfected men who have sex with men (MSM). We adapted PCC for use among HIV-infected MSM and tested its efficacy against standard risk-reduction coun…
An Empirical Examination of Respondent Driven Sampling Design Effects Among HIV Risk Groups from Studies Conducted Around the World
Prevalence and Predictors of Conscious Risk Behavior Among San Franciscan Men who have Sex with Men
Connecting the Dots
Differential HIV Risk for Racial/Ethnic Minority Trans*female Youths and Socioeconomic Disparities in Housing, Residential Stability, and Education
Objectives. We examined HIV prevalence and risk behaviors of 282 trans*female youths aged 16 to 24 years participating in the San Francisco Bay Area, California, SHINE study from 2012 to 2013 to determine differences between racial/ethnic minority and White youths. Methods. We conducted the χ 2 test to determine distributional differences between racial/ethnic minority and White participants in sociodemographic factors, HIV-related risk behaviors…
Examining Excess Mortality Among Critical Workers in Minnesota During 2020–2021
Objectives. To understand the occupational risk associated with COVID-19 among civilian critical workers (aged 16–65 years) in Minnesota. Methods. We estimated excess mortality in 2020 to 2021 for critical occupations in different racial groups and vaccine rollout phases using death certificates and occupational employment rates for 2017 to 2021. Results. Excess mortality during the COVID-19 pandemic was higher for workers in critical occupations…
HIV Risk Behaviors in Heterosexual Partnerships
Behavioral Surveillance of Heterosexual Exchange-Sex Partnerships in San Francisco
Adolescent Experiences of Discrimination, Harassment, Connectedness to Community and Comfort with Sexual Orientation Reported by Adult Men Who have Sex with Men as a Predictor of Adult HIV Status
HIV seroadaptation among individuals, within sexual dyads, and by sexual episodes, men who have sex with men, San Francisco, 2008
"Seroadaptation" comprises sexual behaviors to reduce the risk of HIV acquisition and transmission based on knowing one's own and one's sexual partners' serostatus. We measured the prevalence of seroadaptive behaviors among men who have sex with men (MSM) recruited through time-location sampling (TLS) across three perspectives: by individuals (N = 1207 MSM), among sexual dyads (N = 3746 partnerships), and for sexual episodes (N = 63,789 episodes)…
Using Social Networks to Reach Black MSM for HIV Testing and Linkage to Care
Behavior, Intention or Chance? A Longitudinal Study of HIV Seroadaptive Behaviors, Abstinence and Condom Use
Prevalence and Predictors of Conscious Risk Behavior Among San Franciscan Men who have Sex with Men
A randomized control trial of personalized cognitive counseling to reduce sexual risk among HIV-infected men who have sex with men
The increased life expectancy and well-being of HIV-infected persons presents the need for effective prevention methods in this population. Personalized cognitive counseling (PCC) has been shown to reduce unprotected anal intercourse (UAI) with a partner of unknown or different serostatus among HIV-uninfected men who have sex with men (MSM). We adapted PCC for use among HIV-infected MSM and tested its efficacy against standard risk-reduction coun…
An Empirical Examination of Respondent Driven Sampling Design Effects Among HIV Risk Groups from Studies Conducted Around the World
Risk behaviors for HIV in sexual partnerships of San Francisco injection drug users
While injection drug users (IDU) in the USA are known to form sexual partnerships with IDU as well as non-IDU, scientific research is lacking regarding risk behaviors for HIV transmission within these partnerships. Such information could aid HIV-prevention efforts among IDU and could also explain the relatively low prevalence of HIV among non-IDU heterosexuals in US cities such as San Francisco. Using data from a cross-sectional sample of San Fra…
Connecting the Dots
A Web 2.0 and Epidemiology Mash-Up
Estimating Incidence of HIV Infection Among Men Who Have Sex with Men, San Francisco, 2004–2014
Estimated Number of People Who Inject Drugs in San Francisco, 2005, 2009, and 2012
Differential HIV Risk for Racial/Ethnic Minority Trans*female Youths and Socioeconomic Disparities in Housing, Residential Stability, and Education
Objectives. We examined HIV prevalence and risk behaviors of 282 trans*female youths aged 16 to 24 years participating in the San Francisco Bay Area, California, SHINE study from 2012 to 2013 to determine differences between racial/ethnic minority and White youths. Methods. We conducted the χ 2 test to determine distributional differences between racial/ethnic minority and White participants in sociodemographic factors, HIV-related risk behaviors…
The Impact of Discrimination on the Mental Health of Trans*Female Youth and the Protective Effect of Parental Support
Pre-exposure Prophylaxis (PrEP) Use, Seroadaptation, and Sexual Behavior Among Men Who Have Sex with Men, San Francisco, 2004–2014
Associations between depressive syndromes and HIV risk behaviors among San Francisco men who have sex with men
HIV prevention plans for men who have sex with men (MSM) are often multifaceted. They involve reduction of sexual risk behaviors, such as condomless intercourse, but also often include pharmaceutical approaches, such as early treatment of HIV-infected individuals with antiretroviral therapy (ART). Effectiveness is possibly threatened by individual-level factors, such as depression. In this study of 322 San Francisco MSM (240 HIV-uninfected indivi…
Condomless Anal Sex Among HIV-Positive Men Who Have Sex with Men
A Novel Modeling Approach for Estimating Patterns of Migration into and out of San Francisco by HIV Status and Race among Men Who Have Sex with Men
Increases in Pre-exposure Prophylaxis Use and Decreases in Condom Use
Starfish Sampling”
Community Levels of PrEP Use Among Men Who Have Sex with Men by Race/Ethnicity, San Francisco, 2017
Will We Get to Zero HIV Stigma in San Francisco
Increases in HIV status disclosure and sexual communication between South African men who have sex with men and their partners following use of HIV self-testing kits
Availability of HIV self-testing may increase HIV testing frequency among men who have sex with men (MSM). It is unclear, however, if self-testing may impact HIV-related sexual behaviors among MSM, including HIV status disclosure and condom use. We conducted a mixed methods analysis of changes in HIV-related behaviors after HIV self-testing introduction, using data from 110 MSM participating in a feasibility and acceptability study of HIV self-te…
Medicine (30 obras) · Demography (24 obras) · HIV/AIDS Research and Interventions (24 obras) · HIV, Drug Use, Sexual Risk (20 obras) · Public health (20 obras) · Men who have sex with men (17 obras) · Population (17 obras) · Psychology (17 obras) · Health psychology (16 obras) · Demography (15 obras)