![Associate Professor Gary Chung Kai Chan](/sites/default/files/profiles/8921.jpeg)
Overview
Background
Dr. Gary Chan is a NHMRC Emerging Leadership Fellow at the National Centre for Youth Substance Use Research. His principal research interest lies in the field of substance misuse prevention and the application of cutting-edge statistical method for longitudinal analysis and causal inference. His recent publications have been focused on polysubstance use (including alcohol, tobacco and cannabis) profiles in adolescent populations, examinations of urban-rural differences in substance use, and the epidemiology of alcohol, tobacco and cannabis use. He collaborates extensively with leading researchers in major national and international institutes, including the University of Washington, Murdoch Children's Research Institute, University of Melbourne, and University College London. He has also served as a consultant at the United Nations Office of Drugs and Crime to improve exisitng methods for monitoring global trends of illicit substance production, trafficking and use. This work has made significant impact on how global data will be collected, and these new data will be used by the United nations and many national governments to inform drug policy decision making. He is a Deputy Statistical and Methodology Editor for the journal Addiction.
Dr. Chan is also a statistical advisor at the School of Psychology, providing statistical advice to academic staff and RHD students. Since 2016, he has also delivered several advanced statistcal workshops at the School on R and statistical modelling.
Availability
- Associate Professor Gary Chung Kai Chan is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor of Arts, The University of Queensland
- Bachelor of Science, The University of Queensland
- Masters (Coursework) of Science, The University of Queensland
- Doctor of Philosophy, The University of Queensland
Works
Search Professor Gary Chung Kai Chan’s works on UQ eSpace
2022
Journal Article
Causal inference with observational data in addiction research
Chan, Gary C. K., Lim, Carmen, Sun, Tianze, Stjepanovic, Daniel, Connor, Jason, Hall, Wayne and Leung, Janni (2022). Causal inference with observational data in addiction research. Addiction, 117 (10), 2736-2744. doi: 10.1111/add.15972
2022
Journal Article
Did the under‐reporting of meth/amphetamine use increase in a general population survey in Australia as negative media coverage increased?
Chan, Gary, Sun, Tianze, Lim, Carmen, Stjepanović, Daniel, Rutherford, Brienna, Johnson, Benjamin, Hall, Wayne and Leung, Janni (2022). Did the under‐reporting of meth/amphetamine use increase in a general population survey in Australia as negative media coverage increased?. Addiction, 117 (6), 1787-1793. doi: 10.1111/add.15783
2022
Journal Article
Prevalence and correlates of cannabis use for medicinal reasons – an Australian cross-sectional study
Leung, Janni, Lim, Carmen C.W., Chiu, Vivian, Chung, Jack, Mekonen, Tesfa, Dawson, Danielle, Hall, Wayne D. and Chan, Gary C.K. (2022). Prevalence and correlates of cannabis use for medicinal reasons – an Australian cross-sectional study. Addictive Behaviors Reports, 15 100436, 100436. doi: 10.1016/j.abrep.2022.100436
2022
Journal Article
Age‐period‐cohort analysis of trends in tobacco smoking, cannabis use, and their co‐use in the Australian population
Leung, Janni, Gravely, Shannon, Lim, Carmen, Hall, Wayne and Chan, Gary (2022). Age‐period‐cohort analysis of trends in tobacco smoking, cannabis use, and their co‐use in the Australian population. Addiction, 117 (10), 2730-2735. doi: 10.1111/add.15951
2022
Journal Article
Association between the implementation of tobacco control policies and adolescent vaping in 44 lower‐middle, upper‐middle, and high‐income countries
Chan, Gary C. K., Gartner, Coral, Lim, Carmen, Sun, Tianze, Hall, Wayne, Connor, Jason, Stjepanović, Daniel and Leung, Janni (2022). Association between the implementation of tobacco control policies and adolescent vaping in 44 lower‐middle, upper‐middle, and high‐income countries. Addiction, 117 (8), 1-10. doi: 10.1111/add.15892
2022
Journal Article
A systematic review of trends in US attitudes toward cannabis legalization
Chiu, Vivian, Hall, Wayne, Chan, Gary, Hides, Leanne and Leung, Janni (2022). A systematic review of trends in US attitudes toward cannabis legalization. Substance Use and Misuse, 57 (7), 1-10. doi: 10.1080/10826084.2022.2063893
2022
Journal Article
Is smoking reduction and cessation associated with increased e-cigarette use? Findings from a nationally representative sample of adult smokers in Australia
Sun, Tianze, Lim, Carmen C.W., Rutherford, Brienna N., Johnson, Benjamin, Leung, Janni, Gartner, Coral, Hall, Wayne D., Connor, Jason P. and Chan, C. K. Gary (2022). Is smoking reduction and cessation associated with increased e-cigarette use? Findings from a nationally representative sample of adult smokers in Australia. Addictive Behaviors, 127 107217, 1-5. doi: 10.1016/j.addbeh.2021.107217
2022
Journal Article
An age-period-cohort analysis of trends in psychedelic and ecstasy use in the Australian population
Chan, Gary, Sun, Tianze, Lim, Carmen, Yuen, Wing See, Stjepanović, Daniel, Rutherford, Brienna, Hall, Wayne, Johnson, Ben and Leung, Janni (2022). An age-period-cohort analysis of trends in psychedelic and ecstasy use in the Australian population. Addictive Behaviors, 127 107216, 107216. doi: 10.1016/j.addbeh.2021.107216
2022
Journal Article
State-level prevalence and associates of opioid dependence in the USA
Leung, Janni, Chan, Gary C. K., Tan, Samuel X., McClure-Thomas, Caitlin, Degenhardt, Louisa and Hall, Wayne (2022). State-level prevalence and associates of opioid dependence in the USA. International Journal of Environmental Research and Public Health, 19 (7) 3825, 3825. doi: 10.3390/ijerph19073825
2022
Journal Article
Perceived access to cannabis and ease of purchasing cannabis in retail stores in Canada immediately before and one year after legalization
Wadsworth, Elle, Driezen, Pete, Chan, Gary, Hall, Wayne and Hammond, David (2022). Perceived access to cannabis and ease of purchasing cannabis in retail stores in Canada immediately before and one year after legalization. The American Journal of Drug and Alcohol Abuse, 48 (2), 1-11. doi: 10.1080/00952990.2021.2003808
2022
Journal Article
Changes in viewer engagement and accessibility of popular vaping videos on TikTok: a 12-month prospective study
Rutherford, Brienna N., Sun, Tianze, Lim, Carmen C. W., Chung, Jack, Cheng, Brandon, Davidson, Lily, Tisdale, Calvert, Leung, Janni, Stjepanović, Daniel, Connor, Jason P. and Chan, Gary C. K. (2022). Changes in viewer engagement and accessibility of popular vaping videos on TikTok: a 12-month prospective study. International Journal of Environmental Research and Public Health, 19 (3) 1141, 1141. doi: 10.3390/ijerph19031141
2022
Journal Article
Prevalence and self-reported reasons of cannabis use for medical purposes in USA and Canada
Leung, Janni, Chan, Gary, Stjepanović, Daniel, Chung, Jack Yiu Chak, Hall, Wayne and Hammond, David (2022). Prevalence and self-reported reasons of cannabis use for medical purposes in USA and Canada. Psychopharmacology, 239 (5), 1509-1519. doi: 10.1007/s00213-021-06047-8
2022
Journal Article
Assessing alcohol consumption in a Chinese urban population and a university town using high temporal resolution wastewater-based epidemiology
Zheng, Qiuda, Chan, Gary C.K., Wang, Zhe, Connor, Jason P., Ren, Yuan and Thai, Phong K. (2022). Assessing alcohol consumption in a Chinese urban population and a university town using high temporal resolution wastewater-based epidemiology. Drug and Alcohol Dependence, 230 109178, 109178. doi: 10.1016/j.drugalcdep.2021.109178
2022
Journal Article
The impact of eSports and online video gaming on lifestyle behaviours in youth: a systematic review
Chan, Gary, Huo, Yan, Kelly, Sarah, Leung, Janni, Tisdale, Calvert and Gullo, Matthew (2022). The impact of eSports and online video gaming on lifestyle behaviours in youth: a systematic review. Computers in Human Behavior, 126 106974, 1-16. doi: 10.1016/j.chb.2021.106974
2022
Other Outputs
Causal Inference with Observational Data in R
Chan, Gary (2022). Causal Inference with Observational Data in R. Instats Inc.. doi: 10.61700/nudgujitla9qv469
2022
Journal Article
A wastewater‐based assessment of the impact of a minimum unit price on population alcohol consumption in the Northern Territory, Australia
O’Brien, Jake W., Tscharke, Benjamin J., Bade, Richard, Chan, Gary, Gerber, Cobus, Mueller, Jochen F., Thomas, Kevin V. and Hall, Wayne D. (2022). A wastewater‐based assessment of the impact of a minimum unit price on population alcohol consumption in the Northern Territory, Australia. Addiction, 117 (1), 243-249. doi: 10.1111/add.15631
2022
Journal Article
What is the short-term remission rate for people with untreated depression? A systematic review and meta-analysis
Mekonen, Tesfa, Ford, Sarah, Chan, Gary C. K., Hides, Leanne, Connor, Jason P. and Leung, Janni (2022). What is the short-term remission rate for people with untreated depression? A systematic review and meta-analysis. Journal of Affective Disorders, 296, 17-25. doi: 10.1016/j.jad.2021.09.046
2022
Other Outputs
Causal Inference with Observational Data in R: Propensity Scores, Inverse Probability Treatment Weighting, and Marginal Structural Models
Chan, Gary (2022). Causal Inference with Observational Data in R: Propensity Scores, Inverse Probability Treatment Weighting, and Marginal Structural Models. Instats Inc.. doi: 10.61700/qp1korrfs9hkv469
2021
Journal Article
Estimating the global treatment rates for depression: a systematic review and meta-analysis
Mekonen, Tesfa, Chan, Gary C.K., Connor, Jason P., Hides, Leanne and Leung, Janni (2021). Estimating the global treatment rates for depression: a systematic review and meta-analysis. Journal of Affective Disorders, 295, 1234-1242. doi: 10.1016/j.jad.2021.09.038
2021
Journal Article
The experience of physiological and psychosocial alcohol-related harms across adolescence and its association with alcohol use disorder in early adulthood: A prospective cohort study
Yuen, Wing See, Bruno, Raimondo, Chan, Gary C. K., McCambridge, Jim, Slade, Tim, Clare, Philip J., Aiken, Alexandra, Kypri, Kypros, Hutchinson, Delyse, McBride, Nyanda, Boland, Veronica, Upton, Emily, Farrell, Michael, Mattick, Richard P. and Peacock, Amy (2021). The experience of physiological and psychosocial alcohol-related harms across adolescence and its association with alcohol use disorder in early adulthood: A prospective cohort study. Alcoholism: Clinical and Experimental Research, 45 (12), 2518-2527. doi: 10.1111/acer.14726
Funding
Current funding
Past funding
Supervision
Availability
- Associate Professor Gary Chung Kai Chan is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
Available projects
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Electronic cigarettes use among young people - risks factors for its initiation and escalation, impact on mental health, and its effect on smoking cessation
Electronic cigarettes and personal vaporisors have been gaining popularity in many developed countries such as the US, Canada and the UK. It has been promoted as a cessation device for smokers, thus it holds the potential to reduce smoking related burden on the society. However, it also raises concerns that its uptake among young people may renormalise cigarette smoking. This projects will evaluate the overall evidences of its benefit and harms on public health.
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Understanding initiation, escalation and remission of substance use from adolescence to mid-adulthood: A life course approach
It is well known that adolescence is a period of experiementation and many adolescents may experience with illicit substance during this period. While many of them do not progress into problematic use (e.g. abuse and dependence), some have escalated their use during their 20s and maintained their habits into 30s and 40s. This project will take a life course approach to understand risk factors for substance initiation and escalation, and factors that are linked to natural remission of substance us in mid-adulthood.
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The benefits and harms of Gaming
With the proliferation of handheld devices, video gaming has penstrated nearly every corner of the world and every age groups. This project will focus on quantifying the benefit of gaming, such as increased connectivity with friends in the virtual world and overcoming loneliness during difficult time (e.g., COVID lockdown), and the potential harms such as addiction.
Supervision history
Current supervision
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Doctor Philosophy
Data mining for characterization of the chemical exposome in Australia
Principal Advisor
Other advisors: Professor Jochen Mueller, Dr Ben Tscharke
-
Doctor Philosophy
Impacts of Cannabis Use and Cannabis Vaping - Insight into Australian Cannabis Policies
Principal Advisor
Other advisors: Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Associate Professor Janni Leung
-
Doctor Philosophy
Social media and substance use among young people
Principal Advisor
Other advisors: Professor Jason Connor, Dr Daniel Stjepanovic, Associate Professor Janni Leung
-
Doctor Philosophy
Evaluating the Public Health Impacts of Vaping Product Use
Principal Advisor
Other advisors: Professor Jason Connor, Emeritus Professor Wayne Hall, Associate Professor Janni Leung, Professor Coral Gartner
-
Doctor Philosophy
Learning from the opioid crisis - Preventing the proliferation of prescription stimulant for non-medical use
Principal Advisor
Other advisors: Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Associate Professor Janni Leung, Dr Natalie Thomas
-
Doctor Philosophy
Determinants of alcohol drinking, and tobacco smoking, and e-cigarette vaping in Vietnamese young people and young Vietnamese migrant in Australia : implications for public health interventions and substance-use control policies
Principal Advisor
Other advisors: Professor Jason Connor, Professor Coral Gartner, Associate Professor Phong Thai
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Doctor Philosophy
The influence of social media upon alcohol use: An investigation of effects and mechanisms
Associate Advisor
Other advisors: Dr Carmen Lim, Professor Jason Connor
-
Doctor Philosophy
Enhancing self-confidence in school-aged adolescents for prevention impulsive behaviors (substance addiction, risky sexual behavior, gambling and internet addiction) and mental illnesses
Associate Advisor
Other advisors: Professor Leanne Hides, Associate Professor Janni Leung, Dr Carmen Lim
-
Doctor Philosophy
Adolescent exposure to online cannabis advertisements
Associate Advisor
Other advisors: Professor Jason Connor, Associate Professor Janni Leung
-
Doctor Philosophy
Stress, Allostatic Load and Substance Use in Defence Force Veterans with PTSD
Associate Advisor
Other advisors: Professor Jason Connor
Completed supervision
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2023
Doctor Philosophy
Emerging trends of cannabis vaping in the USA and Canada: Prevalence, correlates, and online presence
Principal Advisor
Other advisors: Professor Jason Connor, Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Associate Professor Janni Leung, Professor Coral Gartner
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2024
Doctor Philosophy
Advancements in Understanding and Intervention of Problematic Alcohol use by Emerging Adults in Australia
Associate Advisor
Other advisors: Dr Chiara Broccatelli, Professor Leanne Hides
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2024
Doctor Philosophy
The Impact of Tobacco Tax Increases on Smoking Behaviours and Tobacco Purchasing Patterns
Associate Advisor
Other advisors: Professor Coral Gartner
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2023
Doctor Philosophy
Mental health services in low resource settings: Treatment gap, service utilization, and barriers to mental health service use
Associate Advisor
Other advisors: Professor Leanne Hides, Associate Professor Janni Leung
-
2023
Doctor Philosophy
Cannabis Legalisation: An Empirical Analysis Causes of Attitudinal Change in the U.S. and Australia
Associate Advisor
Other advisors: Emeritus Professor Wayne Hall, Professor Leanne Hides, Associate Professor Janni Leung
Media
Enquiries
Contact Associate Professor Gary Chung Kai Chan directly for media enquiries about:
- alcohol
- cannabis
- Substance use
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