Quyen G To

Quyen G To
Central Queensland University · School of Health, Medical and Applied Sciences

PhD

About

83
Publications
73,523
Reads
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21,999
Citations
Citations since 2016
76 Research Items
21895 Citations
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Introduction
Quyen G. To currently works at the School of Health, Medical and Applied Science, CQUniversity. His research focuses on using technology-based approaches including machine learning application to improve people's physical activity and other lifestyle behaviours.

Publications

Publications (83)
Article
Full-text available
Background: Household food insecurity and physical activity are each important public-health concerns in the United States, but the relation between them has not been investigated thoroughly. Objective: This study aimed to examine the association between food insecurity and physical activity in the U.S. population. Methods: Physical activity m...
Article
Full-text available
Purpose: To determine the prevalence of falls in the 12 months prior to cataract surgery and examine the associations between visual and other risk factors and falls among older bilateral cataract patients in Vietnam. Methods: Data collected from 413 patients in the week before scheduled cataract surgery included a questionnaire and three object...
Article
Full-text available
To determine the impact of cataract surgery on vision-related quality of life (VRQOL) and examine the association between objective visual measures and change in VRQOL after surgery among bilateral cataract patients in Ho Chi Minh City, Vietnam. A cohort of older patients with bilateral cataract was assessed one week before and one to three months...
Article
Full-text available
Objective: To assess the effectiveness of workplace interventions in improving physical activity. Data source: EBSCO research database (and all subdatabases). Study inclusion and exclusion criteria: Articles were published from 2000 to 2010 in English, had appropriate designs, and measured employees' physical activity, energy consumption, and/...
Article
Deficiencies in iodine levels have been shown to seriously affect a child’s intellectual development and learning capacity. In South-East Asia, iodine deficiency remains a major public health concern. Approximately 30% of the region’s population of 503.6 million have insufficient iodine intake, and only 61% of households have access to iodized salt
Article
Background Few studies have investigated the impact of web-based physical activity interventions on mental health outcomes. Therefore, this study examined the impact of a web-based personally tailored physical activity intervention on depression, anxiety, stress and quality of life. Methods 501 participants were randomised into either a control gr...
Article
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Background The COVID-19 pandemic has led to a worsening of mental health and health behaviors. While physical activity is positively associated mental health, there is limited understanding of how mental health and physical activity evolve throughout the COVID-19 pandemic. This study aimed to examine changes in depression, anxiety and stress and ph...
Article
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Background: Physical activity is associated with depression. However, benefits of physical activity on depression may differ for specific domains of physical activity (i.e., leisure-time, work, and travel). Moreover, the relationship between physical activity and depression could also differ for people in different Body Mass Index (BMI) categories...
Article
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This study investigates differences in physical activity between weekdays and weekend days, and its associations with sociodemographic and anthropometric characteristics in the U.S population using the NHANES 2011–2014 data. Physical activity was measured using ActiGraph GT3X+. Raw acceleration data were converted to Monitor-Independent Movement Su...
Article
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Introduction: Exercise that challenges balance is proven to prevent falls in community-dwelling older people, yet widespread implementation and uptake of effective programmes is low. This systematic review and meta-analysis synthesised the evidence and evaluated the effect of eHealth-delivered exercise programmes compared with control on balance i...
Article
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Background Physical activity is an integral part of healthy aging; yet, most adults aged ≥65 years are not sufficiently active. Preliminary evidence suggests that web-based interventions with computer-tailored advice and Fitbit activity trackers may be well suited for older adults. Objective The aim of this study was to examine the effectiveness o...
Article
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Background COVID-19 has resulted in substantial global upheaval. Resilience is important in protecting wellbeing, however few studies have investigated changes in resilience over time, and associations between resilience with depression, anxiety, stress, and physical activity during the COVID-19 pandemic. Methods Online surveys were conducted to c...
Article
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Background Online risk assessment tools for type 2 diabetes communicate risk information to motivate individuals to take actions and reduce their risk if needed. The impact of these tools on follow-up behaviours (e.g., General Practitioner (GP) visits, improvement in health behaviours) is unknown. This study examined effectiveness of a personalised...
Article
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Purpose: This study examined the usage, acceptability, usability, perceived usefulness, and satisfaction of a web-based video-tailored physical activity (PA) intervention (“TaylorActive”) in adults. Methods: In 2013–2014, 501 Australian adults aged 18+ years were randomized into a video-tailored intervention, text-tailored intervention, or control...
Article
Background: To date, no citation analysis has been conducted in the physical activity field, which can contribute to assess the impact of this research field and identify knowledge gaps. Therefore, this study aimed to identify the 500 most cited physical activity publications and report their bibliometric characteristics. Methods: The Web of Sci...
Article
Full-text available
Objective: This study investigated the association between COVID-19 prevention knowledge and concern and practising preventive behaviour in Australian adults. Methods: Using an online survey, knowledge of Australian COVID-19 guidelines, concerns about pandemic impact, the practice of preventive behaviours, and sociodemographic variables (i.e. age,...
Article
This study investigates the prevalence of and associated factors with depression and anxiety among chronic obstructive pulmonary disease (COPD) outpatients at Pham Ngoc Thach Hospital, Ho Chi Minh City, Vietnam. A cross-sectional study was conducted between March and May 2020 at the hospital's outpatient department. Those aged ≥18 years, diagnosed...
Preprint
BACKGROUND Physical activity is an integral part of healthy aging; yet, most adults aged ≥65 years are not sufficiently active. Preliminary evidence suggests that web-based interventions with computer-tailored advice and Fitbit activity trackers may be well suited for older adults. OBJECTIVE The aim of this study was to examine the effectiveness o...
Article
Sedentary behaviour research is rapidly growing. Scoping reviews are important to inform policy and practice.The aim of this scoping a review was to map the available evidence from systematic reviews and meta-analyses of sedentary behaviour research on adults (≥18 years), within the phases of the behavioural epidemiology framework, and to identify...
Article
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This study investigates changes in willingness to vaccinate against COVID-19 and the effect of the extended restrictions in metropolitan Victoria on this change. Longitudinal and repeated cross-sectional data were collected from online surveys distributed in April, between July and August, and December 2020. Australian adults who were ≥18 years old...
Article
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Anti-vaccination attitudes have been an issue since the development of the first vaccines. The increasing use of social media as a source of health information may contribute to vaccine hesitancy due to anti-vaccination content widely available on social media, including Twitter. Being able to identify anti-vaccination tweets could provide useful i...
Preprint
BACKGROUND Behavioural eHealth and mHealth interventions have been moderately successful in increasing physical activity, although opportunity for further improvement remains. Chatbots equipped with natural language processing can interact and engage with users. Chatbots can also help continuously self-monitor physical activity levels using data fr...
Article
Background Behavioral eHealth and mobile health interventions have been moderately successful in increasing physical activity, although opportunities for further improvement remain to be discussed. Chatbots equipped with natural language processing can interact and engage with users and help continuously monitor physical activity by using data from...
Article
Purpose: To investigate the relationship between falls, physical activity, and other socio-demographic and visual factors among cataract patients in Ho Chi Minh City, Vietnam. Methods: A cross-sectional study was conducted between April and November 2018. Patients presenting to two hospitals with age-related unilateral or bilateral cataract, age...
Article
Full-text available
Understanding for whom behaviour change interventions work is important, however there is a lack of studies examining potential moderators in such interventions. This study investigated potential moderators on the effectiveness of a computer-tailored intervention to increase physical activity among Australian adults. People who had <150 minutes of...
Article
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Controversy around the safety and efficacy of COVID-19 vaccines may lead to low vaccination rates. Survey data were collected in April and August 2020 from a total of 2343 Australian adults. A quarter (n = 575, 24%) completed both surveys. A generalized linear mixed model analysis was conducted to determine whether willingness to vaccinate changed...
Article
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Introduction: This study assessed Health-Related Quality of Life (HRQOL) of patients with Acute Coronary Syndrome (ACS) 6 to 12 months after receiving Percutaneous Coronary Intervention (PCI) and/or Optimal Medical Therapy (OMT) at a hospital in Ho Chi Minh City, Vietnam. Methods: A cross-sectional study was conducted on 113 patients. Data on demog...
Article
This study investigates associations between after-school tutoring and availability of electronic devices with overweight/obesity among fifth-grade children in Ho Chi Minh City, Vietnam. A complex cross-sectional design was used to randomly select students and their parents in 8 public schools in Ho Chi Minh City in 2016. Students were categorized...
Article
Objectives Some online, personally tailored, text-based physical activity interventions have proven effective. However, people tend to ‘skim’ and ‘scan’ web-based text rather than thoroughly read their contents. In contrast, online videos are more engaging and popular. We examined whether web-based personally tailored physical activity videos were...
Article
Background Physical activity is an important health behavior, due to its association with many physical and mental health conditions. During distressing events, such as the COVID-19 pandemic, there is a concern that physical activity levels may be negatively impacted. However, recent studies have shown inconsistent results. Additionally, there is a...
Preprint
Full-text available
BACKGROUND Physical activity is an important health behavior, due to its association with many physical and mental health conditions. During distressing events, such as the COVID-19 pandemic, there is a concern that physical activity levels may be negatively impacted. However, recent studies have shown inconsistent results. Additionally, there is a...
Article
Full-text available
The novel coronavirus (COVID-19) has enforced dramatic changes to daily living including economic and health impacts. Evidence for the impact of these changes on our physical and mental health and health behaviors is limited. We examined the associations between psychological distress and changes in selected health behaviors since the onset of COVI...
Article
Objective To examine differences in eating and physical activity behaviours among ethnic groups in Queensland, Australia, and differences in those behaviours due to the duration of residency in Australia. Design Cross-sectional study using baseline data collected for the Living Well Multicultural–Lifestyle Modification Program between October 2014...
Article
Significance: The Catquest-9 Short Form (SF) has good psychometric properties but was not available in Vietnamese. This study provides the Vietnamese Catquest-9SF and evidence supporting for its use in hospital settings along with clinical assessment to evaluate visual function. Purpose: The purpose of this study was to evaluate the psychometric...
Article
Issue: Some migrant groups have higher risks of deaths and chronic diseases due to barriers associated with socioeconomic disadvantage, social isolation, racism, language, poor access to health services, and low levels of health literacy. However, few culturally-tailored interventions have targeted ethnic groups in Australia. This study evaluated...
Article
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Studies investigating correlates of physical activity (PA) using objective PA measurements among primary school-aged children are limited in Asia, particularly Vietnam. This study examined psychosocial and environmental factors associated with PA among fifth-grade students in eight primary schools in Ho Chi Minh city, Vietnam. Bivariate analyses sh...
Article
Information about the Vietnamese physical education (PE) programme is limited due to a lack of relevant studies. Using the Health Optimising Physical Education as a conceptual framework, this study examined students' physical activity (PA) levels in the fifth-grade PE programme in Vietnam/home/epe and barriers to programme implementation. Eight sch...
Article
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Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2—to end preventable child deaths by 2030—we need consistently estimated data at the subnational level regarding child mortality rates and trends....
Article
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Physical activity data in primary school-aged children are limited in Vietnam. Although tools to measure social ecological influences on physical activity are validated in English, they are not available in Vietnamese. Due to cultural and contextual differences, their psychometric properties need to be tested. Five scales were translated into Vietn...
Article
Aim: To investigate the impact of workplace factors on psychological resilience in registered nurses. Background: Nursing is characterised by persistent workplace adversity. Psychological resilience has been postulated as a means to mitigate the effects of workplace adversity. There is little research that examines the role of workplace factors...
Data
This appendix formed part of the original submission and has been peer reviewed. Supplement to: GBD 2017 SDG Collaborators. Measuring progress from 1990 to 2017 and projecting attainment to 2030 of the health-related Sustainable Development Goals for 195 countries and territories: a systematic analysis for the Global Burden of Disease Study 2017. L...
Article
Very little is known about the cardiometabolic risk of migrants who settle in Australia. This study investigated differences in cardiometabolic risk markers among ethnic groups attending a tailored healthy lifestyle program in Queensland, Australia; and differences in these markers between those living in Australia for shorter versus longer periods...
Article
This study investigated correlates of quality of life (QOL) among people living with HIV/AIDS (PLWH) at An Hoa Clinic, Ho Chi Minh City, Vietnam. Inclusive criteria were PLWH ≥18 years old, under antiretroviral therapy (ART) for ≥3 months, and consent to participate. PLWH who were illiterate, too ill, or at the final stage of AIDS were excluded. QO...
Article
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Background Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates of population and fertility, although useful, have not been produced with transparent and replicable methods and do not use stan...
Article
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This paper estimated mortality for 282 causesof death in 195 countries from 1980 to 2017, adding 18 causes to its estimates compared to GBD 2016. In 2017, the GBD study added numerous data sources, including 127 country-years of vital registration data and 502 country-years of cancer registry data.
Article
Full-text available
Background Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates of population and fertility, although useful, have not been produced with transparent and replicable methods and do not use stan...
Article
Full-text available
Background: Assessments of age-specific mortality and life expectancy have been done by the UN Population Division, Department of Economics and Social Affairs (UNPOP), the United States Census Bureau, WHO, and as part of previous iterations of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD). Previous iterations of the GBD used...
Article
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Background Global development goals increasingly rely on country-specific estimates for benchmarking a nation's progress. To meet this need, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2016 estimated global, regional, national, and, for selected locations, subnational cause-specific mortality beginning in the year 1980. He...
Article
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Background The Global Burden of Diseases, Injuries, and Risk Factors Study 2017 (GBD 2017) includes a comprehensive assessment of incidence, prevalence, and years lived with disability (YLDs) for 354 causes in 195 countries and territories from 1990 to 2017. Previous GBD studies have shown how the decline of mortality rates from 1990 to 2016 has le...
Article
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Background The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017 comparative risk assessment (CRA) is a comprehensive approach to risk factor quantification that offers a useful tool for synthesising evidence on risks and risk–outcome associations. With each annual GBD study, we update the GBD CRA to incorporate improved method...