Sam Lau

Dr. Sam Lau

Hong Kong Baptist University
orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

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

Representative Publications

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10 November 2022 in Frontiers in Public Health
Verified
Journal Article
Open access
Sam LauSam Lau
Sam Lau
CHCherry C. Y. Ho
Cherry C. Y. Ho
RPRebecca C. K. Pang
Rebecca C. K. Pang
SSSusan Su
Susan Su
HKHeather Kwok
Heather Kwok
RHRoger C. Ho
Roger C. Ho
Burnout is an important public health issue at times of the COVID-19 pandemic. Current measures which focus on work-based burnout have limitations in length and/or relevance. When stepping into the post-pandemic as a new Norm Era, the burnout scale for the general population is urgently needed to fill the gap. This study aimed to develop a COVID-19 Burnout Views Scale (COVID-19 BVS) to measure burnout views of the general public in a Chinese context and examine its psychometric properties. A multiphase approach including literature review, expert consultation, and pilot testing was adopted in developing the scale. The scale was administered to a sample of 1,078 of the general public in Hong Kong with an average age of 34.45 years (SD = 12.47). Exploratory and Confirmatory Factor Analyses suggested a 5-item unidimensional model of COVID-19 BVS. The CFA results indicated that the COVID-19 BVS had a good model fit, as χ2 (10.054)/5 = 2.01, SRMR = 0.010, CFI = 0.998, RMSEA = 0.031. Five items were maintained in EFA with high internal consistency in terms of Cronbach's α of 0.845 and McDonald's ω coefficient of 0.87, and the corrected item-to-total correlations of 0.512 to 0.789 are way above the acceptable range. The KMO values of 0.841 and Bartlett's Test of Sphericity (p < 0.01) verified the normal distribution of the EFA and the adequacy of the EFA sampling. The analyses suggest that the COVID-19 BVS is a promising tool for assessing burnout views on the impacts of the epidemic on the Chinese general populations.

6 July 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
Sam LauSam Lau
Sam Lau
CHCherry Ho
Cherry Ho
CPCho Kwan Rebecca Pang
Cho Kwan Rebecca Pang
SSSusan Xiqing SU
Susan Xiqing SU
HKHei Man Heather Kwok
Hei Man Heather Kwok
Roger HoRoger Ho
Roger Ho
We sought to develop and validate a self-assessment burnout scale of the Chinese general population during the COVID-19 pandemic in the context of a dynamic zero-COVID policy. Factors relevant to individuals’ burnout during the prolonged COVID-19 pandemic were identified in the literature and through the reviews of an expert panel. A convenience sample of 1087 was randomly divided into two subsamples and the scale’s psychometric properties were assessed. Findings suggested that the COVID-19 BFS has adequate reliability (α = 0.90) along with factorial, concurrent, and convergent validity. Results of confirmatory factor analysis (CFA) supported the one-factor structure of the scale. Concurrent validity results indicate a significant positive correlation between COVID-19 BFS and the Fear of COVID-19 Scale (r = 0.131, p < 0.001), suggesting that individuals with higher levels of burnout may also have higher levels of fear of COVID, or vice versa. The scale was also correlated positively with being against the dynamic zero-COVID strategy (r = 0.340, p < 0.001), indicating that a higher level of burnout may be associated with individuals who are against the dynamic zero-COVID strategy. The results suggest the five-item COVID-19 BFS is a valid and reliable scale for the measurement of burnout frequency of the Chinese general population in relation to the prolonged COVID-19 pandemic in a dynamic zero-COVID policy context.

Sam LauSam Lau
Sam Lau
ESEric Ngai Yin Shum
Eric Ngai Yin Shum
JMJackie O. T. Man
Jackie O. T. Man
ECEthan Cheung
Ethan Cheung
PAPadmore Adusei Amoah
Padmore Adusei Amoah
Kevin DadaczynskiKevin Dadaczynski
Kevin Dadaczynski
School teachers have faced many challenges due to the coronavirus disease-2019 (COVID-19) pandemic and public health-related containment measures. Recent studies have demonstrated high levels of stress and mental health issues among school teachers. To better understand teacher well-being and inform practices to support them in the face of the ongoing pandemic, we aimed to assess perceived stress, well-being and associated factors among school teachers in Hong Kong, China. For this cross-sectional study, we employed a self-reported questionnaire to assess teacher well-being as an indicator of mental health. Drawing on quantitative data obtained from 336 teachers in Hong Kong from April 2021 to February 2022, we assessed workloads, work-related sense of coherence, perceived stress, secondary burnout symptoms (i.e. intensification of work and exhaustion related to work situation), self-endangering work behaviours and satisfaction with work. Bivariate and multivariate analyses were performed to examine the associations between well-being, demographic and work characteristics. A high percentage (87.6%) of teachers had high levels of perceived stress, which was positively associated with extensification of work (r = 0.571, p < 0.01), intensification of work (r = 0.640, p < 0.01) and exhaustion related to work situation (r = 0.554, p < 0.01). A multilinear regression model adjusted for age and gender was computed to detect predictors of teachers’ well-being index values (F(12, 296) = 41.405, p < 0.001, R2 = 0.627). A higher WHO-5 score was associated with (1) higher teaching hours (B = 0.235, 95% CI = 0.093, 0.413, p = 0.002); (2) higher work-related sense of coherence (B = 2.490, 95% CI = 0.209, 4.770, p = 0.032); (3) higher work satisfaction (B = 5.410, 95% CI = 2.979, 7.841, p < 0.001); (4) lower level of exhaustion related to work situations (B = −9.677, 95% CI = −12.279, −7.075, p < 0.001); and (5) lower level of psychosomatic complaints (B = −4.167, 95% CI = −6.739, −7.075, p = 0.002). These findings highlight the critical need to allocate more attention and resources to improve the mental health of school teachers in Hong Kong. The findings can also inform the development of psychological and organisational interventions and support mechanisms for teachers during the prolonged COVID-19 pandemic and in preparation for future stressful scenarios. Safeguarding the well-being and mental health of teachers is important for improving the quality of teaching and learning environments and the mental health of school students.

12 January 2023 in Frontiers in Public Health
Verified
Journal Article
Open access
Sam LauSam Lau
Sam Lau
SLSharron S. K. Leung
Sharron S. K. Leung
JWJonathan W. C. Wong
Jonathan W. C. Wong
TLTerence C. P. Lee
Terence C. P. Lee
SCStephen R. Cartwright
Stephen R. Cartwright
RCRegene P. W. Choi
Regene P. W. Choi
The COVID-19 pandemic and its associated uncertainties and restrictions have adverse impacts on university students' mental wellbeing. Evidence shows that virtual nature contact has mental health benefits. However, little is known about the potential beneficial health impacts of virtual nature contact during times of social distancing, when access to the natural environment is restricted. This pilot study aimed to examine the effectiveness of a 3-week virtual nature contact in improving nature connectedness and reducing psychophysiological stress. A sample of 56 university students in Hong Kong was randomly assigned to control and nature interventions using 2-D video played for 15 min three times a week for 3 weeks. Nature connectedness, perceived restorativeness and psycho-physiological wellbeing were measured. Our findings show significant changes in psychological stress levels after nature interventions compared with the baseline, including increased happiness and stronger emotions of comfort and relaxation. When compared with the control group, the results show the nature intervention group has significantly higher levels of nature connectedness, happiness, and positive affect, but no significant effects on other psychological and physiological variables (e.g., cardiovascular responses). Our preliminary findings highlight the potential use of virtual nature contacts in bolstering university students' wellbeing at times of pandemic or when in-person visit to the natural environment is not feasible.

5 June 2024 in The Lancet Planetary Health
Verified
Journal Article
Open access
Sam LauSam Lau
Sam Lau
JFJason W L Fong
Jason W L Fong
NRNicola van Rijsbergen
Nicola van Rijsbergen
LMLaura McGuire
Laura McGuire
CHCherry C Y Ho
Cherry C Y Ho
DTDorothy Tse
Dorothy Tse
New global crises are emerging, while existing global crises remain unabated. Coping with climate change, the radioactive water released into the Pacific Ocean subsequent to the Fukushima nuclear accident in Japan, and the wars in Ukraine and the Middle East (hereafter referred to as the wars) as individual crises can negatively affect the psychological health of young people, but little is known about the compounded impact of multiple crises. We aimed to examine: (1) the emotional responses of young people towards each individual crisis, (2) how aggregate levels of emotional engagement in global crises might pose different potential trajectories in psychological health, and (3) the protective or exacerbating role of media exposure and nature connectedness as mediators on psychological health outcomes of young people. We conducted a cross-national online survey among young people (aged 18-29 years) from China, Portugal, South Africa, the USA, and the UK. We adopted stratified purposive sampling and distributed the survey using online platforms (www.wenjuan.com and www.prolific.com). Individuals were eligible for inclusion in our analysis if they were literate in Chinese or English and had no mental disorders diagnosed within the past 12 months. Participants were asked questions on their demographic characteristics and time spent on social media, including proportion of time exposed to media pertaining to global crises of interest, and they completed surveys based on validated scales that measure depression, anxiety, stress, and wellbeing, as well as emotional responses to each global crisis and nature relatedness. We assessed the survey results using descriptive statistics, ANOVA tests, cluster analysis for individual emotional responses, and structural equation modelling for the aggregate measure of emotional engagement towards individual global crises. Between Oct 20 and Nov 3, 2023, 2579 individuals participated in the survey, of whom 400 participants from each country (200 male and 200 female participants) were included in our analysis (mean age 24·36 years [SD 2·86]). The mean emotional engagement varied between the global crises of interest (on a scale from 0 to 68, where 0 indicates no emotional response and 68 indicates strong emotional responses across 17 different emotions; wars: 32·42 [SD 14·57]; climate change: 28·79 [14·17]; radioactive water: 21·26 [16·08]), and emotional engagement also varied by country; for instance, for respondents from China, mean emotional engagement in radioactive water was relatively high (39·15 [10·72]) compared with the other countries, and for respondents from the USA, engagement with the wars was relatively low (29·45 [15·78]). We found significant variations in the level of emotional engagement between different crises, with distinct emotional profiles observed among individual countries. To assess the role of media exposure and nature connectedness on psychological outcomes, using structural equation modelling, we constructed a multi-country model comprising Portugal, South Africa, the USA, and the UK, and a standalone model for China. These models elucidated associations between emotional engagement and psychological distress and wellbeing, explaining substantial portions of the variance in both. Notably, while greater emotional engagement in the ecological crises (ie, climate change and radioactive water) generally predicted worse psychological health outcomes, we found the direction of effect for war crises to have positive outcomes for mental health in the standalone China model. Additionally, we found that media exposure mediated the negative effect of wars on psychological distress in the multi-country model, and positive psychological wellbeing in the standalone China model. Moreover, nature connectedness emerged as a potent mediator, effectively mitigating the adverse mental health effects of emotional engagement with some crises, such as radioactive water and climate change. Our findings offer valuable insights into the nuanced dynamics of emotional engagement in global crises and its implications for mental health outcomes among young people across diverse global contexts. Further research is needed to understand the contribution of ongoing and new global crises towards a compounded negative future outlook on young people's mental health to identify effective communication and intervention strategies that can mitigate the effect of this global challenge. Research Grants Council of Hong Kong, China.

Sam LauSam Lau
Sam Lau
ESEric Ngai Yin Shum
Eric Ngai Yin Shum
JMJackie O. T. Man
Jackie O. T. Man
ECEthan Cheung
Ethan Cheung
PAPadmore Adusei Amoah
Padmore Adusei Amoah
Kevin DadaczynskiKevin Dadaczynski
Kevin Dadaczynski
The health and well-being of school leaders during the COVID-19 pandemic have been largely neglected compared to the health and well-being of students and teachers. This study assessed the magnitude of perceived stress and well-being and the associated factors, including number of working hours, work-related sense of coherence (work-SoC), perceived stress, self-endangering work behaviour, secondary burnout symptoms, and satisfaction with work, among school leaders in Hong Kong, China during the COVID-19 pandemic. This cross-sectional, survey-based study collected demographic data and mental health measurements from 259 eligible school leaders in Hong Kong from April 2021 to February 2022. Pearson’s correlation analyses, multilinear regression models, and independent-samples Student’s t-tests were performed. The findings revealed that school leaders’ perceived stress was negatively correlated with their well-being (r = −0.544, p < 0.01) and work-related SoC (r = −0.327, p < 0.01) but positively correlated with their extensification of work (r = 0.473, p < 0.01), exhaustion related to work situations (r = 0.559, p < 0.01), and psychosomatic complaints (r = 0.439, p < 0.01). In a model that adjusted for gender and age, student leaders with higher subjective well-being scores had a lower level of perceived stress (B = −0.031; 95% confidence interval [CI], −0.59, −0.02; p = 0.034), whereas leaders in schools with a larger student population had a higher level of perceived stress (B = 0.002; 95% CI, 0.000, 0.003; p = 0.030). School leaders with a higher likelihood of performing the self-endangering work behaviour of ‘intensification of work’ had higher perceived stress levels (B = 1.497; 95% CI, 0.717, 2.278; p < 0.001). School leaders with a higher work-related SoC (B = 4.20; 95% CI, 1.290, 7.106; p = 0.005) had a higher level of well-being. School leaders with higher levels of perceived stress (B = −0.734; 95% CI, −1.423, −0.044; p = 0.037), a higher likelihood of performing the self-endangering work behaviour of ‘extensification of work’ (B = −4.846; 95% CI, −8.543, −1.149; p = 0.010), and a higher score for exhaustion related to work (B = −10.449; 95% CI, −13.864, −7.033; p = 0.000) showed lower levels of well-being. The finding of a high incidence of stress among school leadership justifies the need for more societal attention to the well-being of school leaders in Hong Kong. It is important that policies and initiatives are designed to enhance the well-being of school leaders and that they are supported in leading the management of schools and coping with stress in school settings.