Siyan Yi

Biographic Data

ID3918016
NAMESiyan Yi
GIVEN NAMESSiyan
FAMILY NAMEYi
SIGNATUREYI S
AFFILIATIONSNational University of Singapore
ORCID0000-0002-3045-5386
VERIFIEDYes
TOTAL WORKS65
TOTAL CITATIONS0
AUTHOR COUNT43
EDITOR COUNT22
FIRST PUBLICATION YEAR2009
LATEST PUBLICATION YEAR2026
H-INDEX0

  • The role of alcohol control policy on the level of alcohol consumption in member states of the Association of Southeast Asian Nations 2000–2022

    Open AccessJurgen Rehm, J rgen Rehm et al.ARTICLEJournal of Global Health2026

    Background: In his historical studies of current high-income countries, Angus Deaton demonstrated a correlation between a country's prosperity and the health of its population. His conceptual framework has recently been expanded to include the role of alcohol. In this ecological study, we test the key assumptions of the expanded framework and classify countries with respect to both their levels of alcohol consumption and alcohol control policies …

  • Alcohol Policies in the Association of Southeast Asian Nations Region—Challenges, Opportunities and Moving Forward

    Open AccessWen Ting Tong, Noran Naqiah Hairi et al.ARTICLEDrug and Alcohol Review2026

    The Association of Southeast Asian Nations (ASEAN) region saw an increase in alcohol‐attributable deaths attributed to the rise in consumption over the past decade. Rapid economic transition underscores the importance of understanding the multifaceted impact of alcohol consumption on society and the policies designed to mitigate its harms. This commentary discusses the challenges and opportunities of alcohol policy implementation in the ASEAN reg…

  • Social support and depressive symptoms among people living with HIV in Cambodia

    Zar-Tashiya B Khan, Zar-Tashiya Khan et al.ARTICLEAIDS Care2026

    This cross-sectional study examined the prevalence of depressive symptoms, levels of social support, and their association among 4,089 clinically stable people living with HIV receiving antiretroviral therapy (ART) across 20 clinics in Cambodia. Depressive symptoms were assessed using the 10-item Center for Epidemiologic Studies Depression Scale (CES-D-10), and social support was measured using the Berlin Social Support Scale (BSSS). Overall, 19.…

  • Immunisation health workforce capacity building in Southeast Asia

    Open AccessGemma Saravanos, Alvin Kuo Jing Teo et al.ARTICLEBMJ Global Health2025

    The Immunization Agenda 2030 emphasises the need for a motivated, skilled and knowledgeable workforce equipped to plan, manage, implement and monitor immunisation programmes at all levels. The rapid introduction of COVID-19 vaccines during the pandemic highlighted the adaptability of the health workforce but also exposed gaps in professional development and learning. This practice paper describes the implementation of an immunisation training pro…

  • Synergising universal health coverage and global health security in the Western Pacific Region

    Open AccessYuhua Lai, Di Liang et al.ARTICLEJournal of Global Health2025

    Background: Universal health coverage (UHC) and global health security (GHS) should be pursued synergistically to strengthen health systems. However, existing studies found that the efforts toward the two agendas were divergent worldwide. We reviewed the synergy status between UHC and GHS in the Western Pacific Region (WPR) to provide evidence for decision-makers to promote synergy. Methods: We collected the UHC service coverage index (UHC SCI) a…

  • Traditional and psychosocial factors associated with non-communicable diseases among people living with HIV in Cambodia

    Beverly Wen Xin Wong, Pheak Chhoun et al.ARTICLEAIDS Care2025

    We examined traditional and psychosocial factors associated with self-reported diabetes, hypertension, raised cholesterol, and multimorbidity among 4,089 people living with HIV in Cambodia. Participants were recruited from 20 antiretroviral therapy (ART) clinics across nine provinces and the capital city in 2021. Multiple logistic regression analyses assessed the associations between sociodemographic variables, HIV-related information, and psycho…

  • Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990–2021

    Open AccessMichael Brauer, Gregory A Roth et al.ARTICLEThe Lancet2024

    BACKGROUND: Understanding the health consequences associated with exposure to risk factors is necessary to inform public health policy and practice. To systematically quantify the contributions of risk factor exposures to specific health outcomes, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 aims to provide comprehensive estimates of exposure levels, relative health risks, and attributable burden of disease for 88 ri…

  • Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990–2021

    Open AccessMohsen Naghavi, Kanyin Liane Ong et al.ARTICLEThe Lancet2024

    BACKGROUND: Regular, detailed reporting on population health by underlying cause of death is fundamental for public health decision making. Cause-specific estimates of mortality and the subsequent effects on life expectancy worldwide are valuable metrics to gauge progress in reducing mortality rates. These estimates are particularly important following large-scale mortality spikes, such as the COVID-19 pandemic. When systematically analysed, mort…

  • Global, regional, and national burden of disorders affecting the nervous system, 1990–2021

    Open AccessJaimie D Steinmetz, Katrin Seeher et al.ARTICLEThe Lancet Neurology2024

    BACKGROUND: Disorders affecting the nervous system are diverse and include neurodevelopmental disorders, late-life neurodegeneration, and newly emergent conditions, such as cognitive impairment following COVID-19. Previous publications from the Global Burden of Disease, Injuries, and Risk Factor Study estimated the burden of 15 neurological conditions in 2015 and 2016, but these analyses did not include neurodevelopmental disorders, as defined by…

  • Assessing the impact of the Covid-19 pandemic on the mental health of female entertainment workers in Cambodia

    Open AccessCalida S Chua, John Pastor Ansah et al.ARTICLEFrontiers in Public Health2024

    Background: The COVID-19 pandemic has intensified global mental health challenges, particularly for vulnerable groups like female entertainment workers (FEWs), a critical HIV-affected population in Cambodia. Already facing pre-existing inequalities, FEWs encountered heightened difficulties due to the pandemic's disruption of their livelihoods. Their susceptibility to mental health problems is exacerbated by poverty and the occupational stressors …

  • Applying the COM-B behaviour model to understand factors which impact 15–16 year old students’ ability to protect themselves against acquirement of Human Papilloma virus (HPV) in Northern Ireland, UK

    Open AccessTerri Flood, Ciara M Hughes et al.ARTICLEPLOS Global Public Health2024

    High-risk strains of Human Papillomavirus (HPV) can lead to the development of a number of cancers including cervical, vulvar, penile, anal and oropharyngeal. HPV vaccination programmes offer the HPV vaccine to males and females 12–13 years old in schools throughout the UK. However, knowledge of HPV remains low in post-primary schools. The aim of this study is to capture 15–16 year old students’ perceptions regarding the current provision of HPV …

  • Effect of a brief psychological intervention for common mental disorders on HIV viral suppression

    Open AccessVictoria Simms, Melanie Abas et al.ARTICLEPLOS Global Public Health2024

    Background For people living with co-morbid HIV and common mental disorders (CMD), it is not known whether a brief psychological intervention for CMD can improve HIV viral suppression. Methods We conducted a prospective cohort study in eight primary care clinics in Harare, Zimbabwe, enrolling adults with co-morbid HIV and CMD. Six clinics provided the Friendship Bench (FB), a brief psychological intervention for CMD based on problem-solving thera…

  • Perceptions and experiences of daily and long-acting pre-exposure prophylaxis (PrEP) among MSM in India

    Open AccessHarsh Agarwal, Ivania Núñez et al.ARTICLEPLOS Global Public Health2024

    Oral pre-exposure prophylaxis (PrEP) is an effective HIV prevention strategy with high efficacy. An increased willingness to use PrEP among at-risk Indian men who have sex with men (MSM) population has been reported; however, little is known about their real experiences that guide their key motivators, facilitators, and barriers with using oral and Long-Acting (LA) Injectable PrEP. We recruited participants (n = 18) through active MSM social medi…

  • State and territory immunization program activities and their association with human papillomavirus vaccine initiation in the United States of America

    Open AccessVivian Colón‐López, Francisco J Muñoz‐Torres et al.ARTICLEPLOS Global Public Health2024

    This study evaluates the association between immunization program (IP) activities aimed at increasing HPV vaccination among adolescents and their impact on initiation rates. Our data sources are: (i) 2016 AIM Annual Survey and (ii) 2019 National Immunization Survey–Teen. We estimated the prevalence of HPV vaccine initiation using a multilevel Poisson model, combining state-level IP data and individual characteristics of adolescents. We calculated…

  • HIV preventive practice and its associated factors among street dwellers in Ethiopia

    Open AccessYosef Wassihun, Zemed Hunegnaw et al.ARTICLEPLOS Global Public Health2024

    Street dwelling is the use of public space as a place of residence and nourishment for children, adolescents, and young people, revealing a complex and multifactorial situation. Moreover, homelessness facilitates HIV transmission and its progression due to the risky lifestyle of individuals. To the best of our knowledge, there is no study conducted in the study area on HIV preventive practices among street dwellers. The aim of this study was to a…

  • Person-centered and youth-oriented interventions to improve TB Care for adolescents and young adults

    Open AccessPatricia M Waterous, Rudo MS Chingono et al.ARTICLEPLOS Global Public Health2024

    Introduction Globally adolescents and young adults (AYA) with tuberculosis (TB) face unique challenges. Until recently they have received little attention and few tailored interventions exist. To improve TB outcomes in this population, there is a need to implement tailored interventions. However, limited research has been conducted about how to meet the needs of AYA with tuberculosis. In this paper we present the findings of a qualitative study t…

  • A qualitative analysis of self-management needs of adolescents and young adults living with perinatally acquired HIV in rural, southwestern Uganda

    Open AccessScholastic Ashaba, Charles Baguma et al.ARTICLEPLOS Global Public Health2024

    The number of adolescents living with HIV remains high in sub-Saharan Africa with poorer HIV treatment outcomes among adolescents and young adults compared to individuals in other age groups. For adolescents and young adults living with perinatally acquired HIV (AYLPHIV), the transition from pediatric to adult HIV care is a particularly high-risk period. We conducted a qualitative study to understand self-management needs of AYLPHIV in rural, sou…

  • HIV epidemiologic trends among occupational groups in Rakai, Uganda

    Open AccessVictor O Popoola, Joseph Kagaayi et al.ARTICLEPLOS Global Public Health2024

    Certain occupations have been associated with heightened risk of HIV acquisition and spread in sub-Saharan Africa, including female bar and restaurant work and male transportation work. However, data on changes in population prevalence of HIV infection and HIV incidence within occupations following mass scale-up of African HIV treatment and prevention programs is very limited. We evaluated prospective data collected between 1999 and 2016 from the…

  • Synergies and dis-synergies between universal health coverage and global health security

    Open AccessLo Yan Esabelle Yam, Pheak Chhoun et al.ARTICLEJournal of Global Health2024

    Background: After the coronavirus disease 2019 (COVID-19) pandemic, the global community's increased focus on pandemic preparedness has driven efforts such as the Pandemic Treaty proposed by the World Health Organization (WHO) and the Pandemic Fund managed by the World Bank. While these initiatives will enhance countries' capabilities in pandemic preparedness, synergies could be achieved by exploring the intersections between universal health cov…

  • Global, regional, and national burden of diabetes from 1990 to 2021, with projections of prevalence to 2050

    Open AccessKanyin Liane Ong, Lauryn K Stafford et al.ARTICLEThe Lancet2023

    BACKGROUND: Diabetes is one of the leading causes of death and disability worldwide, and affects people regardless of country, age group, or sex. Using the most recent evidentiary and analytical framework from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD), we produced location-specific, age-specific, and sex-specific estimates of diabetes prevalence and burden from 1990 to 2021, the proportion of type 1 and type 2 diabetes…

  • Developing an infection prevention and control intervention to reduce hospital-acquired infections in Cambodia and Lao People’s Democratic Republic

    Open AccessSreymom Oy, Chan Hang Saing et al.ARTICLEFrontiers in Public Health2023

    Background: Hospital-acquired infections (HAIs) are significant public health issues, especially in low-and middle-income countries (LMICs). Hand hygiene and low-level disinfection of equipment practices among healthcare workers are some of the essential measures to reduce HAIs. Various infection prevention and control (IPC) interventions to reduce HAI incidence have been developed. However, effective interventions have not been well developed in…

  • Where are the missing people affected by tuberculosis? A programme review of patient-pathway and cascade of care to optimise tuberculosis case-finding, treatment and prevention in Cambodia

    Open AccessAlvin Kuo Jing Teo, Fukushi Morishita et al.ARTICLEBMJ Global Health2023

    BACKGROUND: Cambodia has achieved great success in tuberculosis (TB) control in the past decade. Nevertheless, people with TB are missed by the health systems at different stages of the care pathway. This programme review corroborated the care-seeking behaviours of people with TB and TB services availability and estimated the number of people completing each step of the TB disease and TB preventive treatment (TPT) care cascade. METHODS: Patient p…

  • Hi-fun among men who have sex with men in Bangkok

    Open AccessT Charles Witzel, Mookarpa Charoenyang et al.ARTICLEPLOS Global Public Health2023

    The use of specific drugs (e.g. methamphetamine, GHB/GBL and other stimulants) to enhance sex among men who have sex with men (MSM), is the focus of global public health concern because of links to social harms, poor mental and sexual health. Often called ‘chemsex’ in Western settings or ‘ hi-fun ’ in Southeast Asia, this type of sexualised drug use is increasingly visible in Thailand where the unique sociocultural and legislative environments sh…

  • Stigma as a barrier and sex work as a protective factor for HIV testing among trans women in Nepal

    Open AccessErin C Wilson, C M Turner et al.ARTICLEPLOS Global Public Health2023

    Stigma towards trans women in Nepal creates individual and system-level risks for HIV. A critical protective factor is access to HIV prevention. Research is needed to determine the impact of stigma on HIV testing among trans women in Nepal. We conducted a secondary analysis of data collected using respondent driven sampling in 2019 on HIV risk among trans women in Nepal. Data analysis was restricted to trans women who were HIV negative at testing…

  • A Type II hybrid effectiveness-implementation study of an integrated CHW intervention to address maternal healthcare in rural Nepal

    Open AccessAparna Tiwari, Aradhana Thapa et al.ARTICLEPLOS Global Public Health2023

    Skilled care during pregnancy, childbirth, and postpartum is essential to prevent adverse maternal health outcomes, yet utilization of care remains low in many resource-limited countries, including Nepal. Community health workers (CHWs) can mitigate health system challenges and geographical barriers to achieving universal health coverage. Gaps remain, however, in understanding whether evidence-based interventions delivered by CHWs, closely aligne…