Won Sun Chen

Dr. Won Sun Chen

Department of Health Science & Biostatistics; School of Health Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

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

Representative Publications

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17 May 2021 in Vaccines
Verified
Journal Article
Open access
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SBSuzanna Awang Bono
Suzanna Awang Bono
EVEdlaine Faria de Moura Villela
Edlaine Faria de Moura Villela
CSChing Sin Siau
Ching Sin Siau
WCWon Sun Chen
Won Sun Chen
SPSupa Pengpid
Supa Pengpid
Robert ColebundersRobert Colebunders
Robert Colebunders
Vaccination is fast becoming a key intervention against the ongoing COVID-19 pandemic. We conducted cross-sectional online surveys to investigate COVID-19 vaccine acceptance across nine Low- and Middle-Income Countries (LMICs; N = 10,183), assuming vaccine effectiveness at 90% and 95%. The prevalence of vaccine acceptance increased from 76.4% (90% effectiveness) to 88.8% (95% effectiveness). Considering a 90% effective vaccine, Malaysia, Thailand, Bangladesh, and five African countries (Democratic Republic of Congo, Benin, Uganda, Malawi, and Mali) had lower acceptance odds compared to Brazil. Individuals who perceived taking the vaccine as important to protect themselves had the highest acceptance odds (aOR 2.49) at 95% effectiveness.Vaccine acceptance was also positively associated with COVID-19 knowledge, worry/fear regarding COVID-19, higher income, younger age, and testing negative for COVID-19. However, chronic disease and female gender reduced the odds for vaccine acceptance. The main reasons underpinning vaccine refusal were fear of side effects (41.2%) and lack of confidence in vaccine effectiveness (15.1%). Further research is needed to identify country-specific reasons for vaccine hesitancy in order to develop mitigation strategies that would ensure high and equitable vaccination coverage across LMICs.

1 July 2016 in Universal Journal of Educational Research
Verified
Journal Article
Open access
PDF file
WCWon Sun Chen
Won Sun Chen
AYAdrian Yong Tat Yao
Adrian Yong Tat Yao
Blended learning, a convergence of e-learning approach and face-to-face learning, has been regarded as a new paradigm in modern education. The degree of learners' satisfaction with blended learning played a crucial role in evaluating the effectiveness of blended learning adoption. Therefore, this study examined the primary factors affecting learners' satisfaction in blended learning environment. A comprehensive questionnaire was used to assess the impact of six dimensions such as learner, instructor, course, technology, design and environment, on perceived e-learner satisfaction specifically on the e-learning component within the blended learning environment. The respondents for this study were generally young with an average age of 20 years old. Results from univariate regression analysis revealed all six dimensions to be positively associated with perceived e-learner satisfaction. Subsequent multivariate regression analysis evidenced only the design dimension to be the critical factor influencing perceived e-learner satisfaction. This study concluded younger generation prioritized the design dimension to be the most critical factor in their satisfaction towards e-learning component in blended learning environment. Therefore, it may be more strategic for institutions to emphasize on the design dimension in their e-learning implementations within the blended learning environment specifically for younger learners.

18 September 2021 in Journal of Diabetes
Verified
Journal Article
Open access
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GRGregory Roberts
Gregory Roberts
JSJames Sires
James Sires
ACAngela Chen
Angela Chen
TTTilenka Thynne
Tilenka Thynne
CSCheyne Sullivan
Cheyne Sullivan
EMEmily Jane Meyer
Emily Jane Meyer
Background: The aim of this study is to compare metrics specific for stress‐induced hyperglycemia (SIH) with glucose for predicting ischemic stroke outcome.Methods: This observational retrospective study (n = 300) included patients acutely hospitalized for ischemic stroke over a 3.8‐year period. We assessed the association between acute ischemic stroke outcome with the stress hyperglycemia ratio (SHR, relative increase in glycemia) and glycemic gap (GG, absolute increase in glycemia) using admission values and 5‐day maximum values, along with incidence of poor outcome above recognized clinical thresholds of glucose 10 mmol/L, SHR 1.14, and GG 2.5 mmol/L.Results: At admission, only SHR was associated with outcome after adjustment for clinical covariates (odds ratio [OR] = 2.88; 95% CI: 1.05‐7.91; P = .041), while glucose or GG were not. Admission SHR ≥ 1.14 was also an indicator of poor outcome (39.1% vs 23.4%, P = .016), but not glucose ≥10 mmol/L or GG ≥ 2.5 mmol/L. All 5‐day maximum glucose metrics were associated with outcome, as was any SHR ≥ 1.14 (40.9% vs 20.1%, P < .001) or GG ≥ 2.5 mmol/L (42.9% vs 23.4%, P = .011), but not glucose ≥10 mmol/L. Increased comorbidity was strongly associated with worse outcome (P < .001) in all models.Conclusions: SHR provided the best prognostic insight at admission to assess the relationship between SIH and ischemic stroke outcome. Absolute glucose levels failed to account for natural interpatient variation in background glycemia and provided little prognostic insight. To assess the impact of SIH, future interventional studies need to be designed using designated markers of SIH such as SHR in preference to absolute glucose.

1 September 2017 in Archives of Gerontology and Geriatrics
Verified
Journal Article
Closed access
BABoon Hong Ang
Boon Hong Ang
WCWon Sun Chen
Won Sun Chen
SLShaun Wen Huey Lee
Shaun Wen Huey Lee

1 August 2016 in Eating Behaviors
Verified
Journal Article
Closed access
TKTommy Kristanto
Tommy Kristanto
WCWon Sun Chen
Won Sun Chen
YTYin Yin Thoo
Yin Yin Thoo

4 May 2022 in BMC Public Health
Verified
Journal Article
Open access
PDF file
BLBob Lew
Bob Lew
David LesterDavid Lester
David Lester
Kairi KolvesKairi Kolves
Kairi Kolves
PYPaul Siu Fai Yip
Paul Siu Fai Yip
YCYing-Yeh Chen
Ying-Yeh Chen
NINorhayati Ibrahim
Norhayati Ibrahim
Background: This study examines the 20-year trend of suicide in 46 Muslim-majority countries throughout the world and compares their suicide rates and trends with the global average. Ecological-level associations between the proportion of the Muslim population, the age-standardized suicide rates, male-to-female suicide rate ratio, and the Human Development Index (HDI) in 2019 were examined. Methods: Age-standardized suicide rates were extracted from the WHO Global Health Estimates database for the period between 2000 and 2019. The rates in each country were compared with the age-standardized global average during the past 20 years. The countries were further grouped according to their regions/sub-regions to calculate the regional and sub-regional weighted age-standardized suicide rates involving Muslim-majority countries. Correlation analyses were conducted between the proportion of Muslims, age-standardized suicide rate, male: female suicide rate ratio, and the HDI in all countries. Joinpoint regression was used to analyze the age-standardized suicide rates in 2000-2019. Results: The 46 countries retained for analysis included an estimated 1.39 billion Muslims from a total worldwide Muslim population of 1.57 billion. Of these countries, eleven (23.9%) had an age-standardized suicide rate above the global average in 2019. In terms of regional/sub-regional suicide rates, Muslim-majority countries in the Sub-Saharan region recorded the highest weighted average age-standardized suicide rate of 10.02/100,000 population, and Southeastern Asia recorded the lowest rate (2.58/100,000 population). There were significant correlations between the Muslim population proportion and male-to-female rate ratios (r=-0.324, p=0.028), HDI index and age-standardized suicide rates (r=-0.506, p<0.001), and HDI index and male-to-female rate ratios (r=0.503, p<0.001) in 2019. Joinpoint analysis revealed that seven Muslim-majority countries (15.2%) recorded an increase in the average annual percentage change regarding age-standardized suicide rates during 2000-2019. Conclusions: Most Muslim-majority countries had lower age-standardized suicide rates than the global average, which might reflect religious belief and practice or due to Muslim laws in their judicial and social structure which may lead to underreporting. This finding needs further in-depth country and region-specific study with regard to its implication for public policy.