HENG XU

Dr. HENG XU

orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
29 November 2024 in International Journal for Equity in Health
Verified
Journal Article
Open access
PDF file
SCSiu Ming Chan
Siu Ming Chan
HXHENG XU
HENG XU
YTYuen-Ki Tang
Yuen-Ki Tang
JZJasmine Zhang
Jasmine Zhang
KKKim Kwok
Kim Kwok
KLKa-Chun Lui
Ka-Chun Lui
There are growing global concerns about informal waste pickers and their health issues. This cross-sectional study drew on the structural violence theory to examine the mental health situation of informal waste pickers in Hong Kong and identified the determinants of depression and anxiety in them ranging from individual to societal and governmental levels. The data from the largest territory-wide study of informal waste pickers in 2023 was analysed. Descriptive statistics and logistic regressions were used to investigate the association between mental health and socioeconomic variables, including demographic background, governmental measures against informal waste pickers, other negative experiences related to safety and public discrimination, and supportive resources. The symptoms of depression and anxiety were assessed using the Patient Health Questionnaire (PHQ) and General Anxiety Disorder (GAD). The results showed that physical strain/illness and chronic illness caused by long-term scavenging works (for depression adjusted OR 3.33, 95% CI [1.75, 6.31]; for anxiety adjusted OR 5.01, 95% CI [2.45, 10.24]), recycling or personal property stolen (for depression adjusted OR 2.04, 95% CI [1.23, 3.36]; for anxiety adjusted OR 2.72, 95% CI [1.62, 4.56]), being treated rudely by citizens (for depression adjusted OR 2.16, 95% CI [1.32, 3.55]); for anxiety (adjusted OR 2.85, 95% CI [1.74, 4.67]) are the critical risk factors of informal waste pickers’ mental health. While higher intention to continue scavenging work if financial conditions permit is the critical protective factor for depression (adjusted OR 0.46, 95% CI [0.24, 0.88]) and anxiety (adjusted OR 0.43, 95% CI [0.22, 0.86]), compared to lower intention to continue scavenging work if financial conditions permit in the multivariate model. This study discloses the close relationship between informal waste pickers’ long-term physical strain/illness and mental health and identifies the governmental measures, other negative experiences related to safety issues and public discrimination as risk factors for informal waste pickers’ mental health. Providing outreach, tailored medical services, increasing the unit price of recycling, developing specific recycling zones and establishing membership-based organisations help alleviate the challenges of precarious employment and enhance the well-being of the informal waste pickers.

20 March 2025 in Healthcare
Verified
Journal Article
Open access
PDF file
SCSiu Ming Chan
Siu Ming Chan
YTYuen-Ki Tang
Yuen-Ki Tang
HXHENG XU
HENG XU
JZJasmine Zhang
Jasmine Zhang
KKKim Kwok
Kim Kwok
WTWing-Him Tang
Wing-Him Tang
Background: This study explores the multifaceted inequalities faced by informal waste pickers in Hong Kong, focusing on the impacts of gender and socioeconomic status in shaping their working environment, income, and psychological health. Recognizing that social stratification encompasses a series of structural factors, i.e., gender, race, and socioeconomic status, we aim to fill the gap in existing literature regarding the precarious employment of this population. Methods: Utilizing a comprehensive, territory-wide survey, we analyzed the experiences of male and female waste pickers across different socioeconomic backgrounds. Differences between genders for continuous variables were assessed using the independent samples t-test. Differences across categories defined by gender and socioeconomic status were analyzed using one-way ANOVA, followed by post hoc comparisons with the least significant difference (LSD) method. Results: Our findings indicate that both gender and socioeconomic status significantly influence working environment, occupational income, and psychological health outcomes. Specifically, female waste pickers from lower socioeconomic backgrounds face more adverse working environments, lower income levels, and heightened psychological health risks compared to their higher-status counterparts. Conclusions: These results underscore the urgent need for targeted outreach and tailored healthcare services for vulnerable female waste pickers, as well as social support systems that empower them to negotiate with intermediaries and recycling shop owners. By recognizing their essential role in Hong Kong’s urban recycling ecosystem, this study advocates for policies that address these disparities and promote psychological health and social well-being among this marginalized group.

1 July 2024 in AIDS Patient Care and STDs
Verified
Journal Article
Closed access
HXHENG XU
HENG XU
TWTongyao Wang
Tongyao Wang
WHWanjia He
Wanjia He
CSChengshi Shiu
Chengshi Shiu
TAThin Nyein Nyein Aung
Thin Nyein Nyein Aung
WCWeiti Chen
Weiti Chen
Although enacted and internalized stigma is a continuing problem for people living with HIV (PLWH) in Southeast Asia, there is little understanding of how PLWH cope with discrimination, exclusion, and other negative outcomes caused by HIV-related stigmatization. This article aims to bridge this gap by analyzing the lived experiences of HIV-related stigmatization and coping strategies among 30 people with HIV in Myanmar, a country heavily influenced by religion, especially Buddhism. Among the 30 study participants, 20 were female and 10 were male, with ages ranging from 18 to 50 years. Through the lens of Bourdieu's concepts of habitus, field, and capital, this article first elucidates the various forms of stigmatization in family, work, social, and other settings as symbolic violence on people with HIV. The present article shows that spirituality serves as a perceptual and action framework for people with HIV to generate reflexivity toward their HIV infection and related stigmatization and to further engage in agentic responses. More importantly, this article demonstrates how people with HIV draw on spirituality to support peers in reclaiming control over their lives and how they are perceived by society. The findings indicate that the local context, especially cultural and religious resources, should be considered when developing interventions to mitigate HIV-related stigmatization in Southeast Asia.


12 September 2026 in American Journal of Industrial Medicine
Verified
Journal Article
Open access
SCSiu Ming Chan
Siu Ming Chan
ATAlan Tam
Alan Tam
HXHENG XU
HENG XU
YHYu‐Tian He
Yu‐Tian He
YTYuen‐Ki Tang
Yuen‐Ki Tang
WTWing‐Him Tang
Wing‐Him Tang
Background: Informal waste pickers play a crucial role in urban recycling systems but often face precarious employment and systematic marginalization. This study examines the evolving demographic, occupational, and health trends of informal waste pickers in Hong Kong between 2018 and 2023. Methods: This study utilized a face‐to‐face structured questionnaire to collect cross‐sectional survey data in 2018 ( N = 505) and 2023 ( N = 701) across Hong Kong. Independent‐samples t ‐tests were conducted to compare demographic variables, working conditions, income sources and levels, physical health, and negative encounters (e.g., property theft and scale manipulation) between the two periods. Results: The surveys show that the waste picker population remains predominantly older adults. Between 2018 and 2023, their living conditions exhibited significant changes across four core dimensions. First, the average monthly income from recycling and the proportion relying on the Old Age Living Allowance increased significantly. Second, a greater number of waste pickers reported being motivated by earning a basic livelihood and supporting environmental protection. Third, the proportion experiencing weighing‐scale manipulation and physical injury increased. Finally, despite a significant increase in daily work rounds, the proportion reporting physical strain declined. Conclusions: Despite nominal income gains, Hong Kong's predominantly female waste pickers face intensified structural violence via unfair markets and discrimination. Hence, female‐friendly policies and other procedures, including sector formalization, the establishment of waste picker organizations, intermediary regulation, retirement and health support, and anti‐discrimination public education, are suggested.

7 July 2025 in JMIR Formative Research
Verified
Journal Article
Open access
KSKatherine Y P Sze
Katherine Y P Sze
Daniel HoDaniel Ho
Daniel Ho
Agnes Yuen-kwan LaiAgnes Yuen-kwan Lai
Agnes Yuen-kwan Lai
JJJing Jia
Jing Jia
HXHENG XU
HENG XU
Man Ping WangMan Ping Wang
Man Ping Wang
Background: Xingfu (幸福), a Chinese term, holds meanings that transcend Western concepts of happiness; it is modern and highly valued in China. Despite its centrality to China’s national discourse on xingfu, there are no validated tools for measuring perceived xingfu, particularly in Hong Kong’s unique sociopolitical context. Postpandemic recovery efforts and widening socioeconomic disparities in Hong Kong highlight the urgency of understanding indicators such as perceived xingfu. Objective: This study aimed to develop and validate the first single-item measure of perceived xingfu and examine its association with health-related and socioeconomic factors among Hong Kong Chinese adults, addressing gaps in culturally tailored assessment. Methods: Our cross-sectional online survey included 5070 Hong Kong Chinese adults in 2023. Perceived xingfu was measured using a novel, single-item, 11-point scale from 0 to 10, with higher scores indicating better perceived xingfu. Two-week test-retest showed high reliability (intraclass correlation coefficient of 0.78). We used regression models to analyze associations between perceived xingfu score and high perceived xingfu (defined as ≥7) with mutually adjusted study variables; all estimates were weighted based on 2022 Hong Kong population data. Results: The mean perceived xingfu score was 6.3 (SD 2.2). Perceived xingfu score was associated with happiness (r=0.85), perceived mental health (r=0.65), and adversity coping capability (r=0.50) and negatively associated with perceived stress (r=−0.56), past 7-days loneliness (r=−0.52), anxiety symptoms (r=−0.45), and depressive symptoms (r=−0.52). Female sex (β=0.69, adjusted odds ratio [aOR] 2.11), older age (β=0.46, aOR 2.67), having post-secondary education or above (β=0.19, aOR 1.35), higher monthly household income (≥ HKD60,000: β=0.99, aOR 3.04), living in owned properties (β=0.27, aOR 1.57), being retired (β=0.56, aOR 1.18), and excellent versus poor self-rated health (β=3.84, aOR 40.72) were associated with higher perceived xingfu score or high perceived xingfu (all Ps or Pstrend<0.001). Conclusions: This study pioneers the perceived xingfu measurement in a Chinese population using a concise, validated tool. Significant socioeconomic disparities and health associations highlight perceived xingfu’s relevance to policy priorities, including equitable resource allocation and health support. Our single-item perceived xingfu tool offers practical utility for population surveillance and cross-cultural comparisons. Future research should explore longitudinal trends and integrate perceived xingfu into public health frameworks.