Associate Professor Gary Chung Kai Chan
Associate Professor

Gary Chung Kai Chan

Email: 
Phone: 
+61 7 344 32533

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

Biomedical and Clinical Sciences Biostatistics Epidemiology Health Sciences Mathematical Sciences Psychology Statistics

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

Search Professor Gary Chung Kai Chan’s works on UQ eSpace

215 works between 2012 and 2025
All (215) Journal Article (174) Book Chapter (1) Conference Publication (33) Other Outputs (7)

1 - 20 of 215 works

2025

Journal Article

Examining the Relationship of Cannabis use Patterns, Mental Health, and Sociodemographic Factors: A Focus on Cannabis Vaping, Smoking and Dual-Use

Chung, Jack Y.C., Lim, Carmen C.W., Connor, Jason P., Hall, Wayne, Stjepanović, Daniel and Chan, Gary C.K. (2025). Examining the Relationship of Cannabis use Patterns, Mental Health, and Sociodemographic Factors: A Focus on Cannabis Vaping, Smoking and Dual-Use. Addictive Behaviors, 163 108263, 108263-163. doi: 10.1016/j.addbeh.2025.108263

Examining the Relationship of Cannabis use Patterns, Mental Health, and Sociodemographic Factors: A Focus on Cannabis Vaping, Smoking and Dual-Use

2025

Journal Article

Content analysis of the portrayal of prescription stimulants on TikTok

Johnson, Benjamin, Sun, Tianze, Wu, Leo, Seal, Stella, Stjepanovic, Daniel, Chan, Gary and Leung, Janni (2025). Content analysis of the portrayal of prescription stimulants on TikTok. Journal of Attention Disorders. doi: 10.1177/10870547251318834

Content analysis of the portrayal of prescription stimulants on TikTok

2025

Journal Article

A mixed‐methods study of staff perspectives on the barriers and facilitators to the implementation of patient‐reported routine outcome measures and feedback in alcohol and other drug treatment

Pocuca, Nina, Campbell, Gabrielle, Barnett, Anthony, Beck, Alison K., Ellem, Rhiannon, Quinn, Catherine A., Kelly, Peter J., Larance, Briony, Baker, Amanda L., Connor, Jason P., Marsden, John, Chan, Gary C. K., Connelly, Luke, Lenzen, Sabrina, Farrell, Michael, Stirling, Robert, Hudson, Suzie and Hides, Leanne (2025). A mixed‐methods study of staff perspectives on the barriers and facilitators to the implementation of patient‐reported routine outcome measures and feedback in alcohol and other drug treatment. Drug and Alcohol Review, 44 (3), 759-771. doi: 10.1111/dar.14007

A mixed‐methods study of staff perspectives on the barriers and facilitators to the implementation of patient‐reported routine outcome measures and feedback in alcohol and other drug treatment

2025

Journal Article

Do the differing vaping and smoking trends in Australia and New Zealand reflect different regulatory policies?

Mendelsohn, Colin Paul, Beaglehole, Robert, Borland, Ron, Hall, Wayne, Wodak, Alex, Youdan, Ben and Chan, Gary Chung Kai (2025). Do the differing vaping and smoking trends in Australia and New Zealand reflect different regulatory policies?. Addiction. doi: 10.1111/add.70006

Do the differing vaping and smoking trends in Australia and New Zealand reflect different regulatory policies?

2025

Journal Article

The safety and efficacy of cannabinoids for the treatment of mental health and substance use disorders: protocol for a systematic review and meta-analysis

Wilson, Jack, Langcake, Andrew, Bryant, Zachary, Freeman, Tom P., Leung, Janni, Chan, Gary C. K., Englund, Amir, Graham, Myfanwy and Stockings, Emily (2025). The safety and efficacy of cannabinoids for the treatment of mental health and substance use disorders: protocol for a systematic review and meta-analysis. Systematic Reviews, 14 (1) 23. doi: 10.1186/s13643-024-02657-3

The safety and efficacy of cannabinoids for the treatment of mental health and substance use disorders: protocol for a systematic review and meta-analysis

2024

Journal Article

The relationship between cannabis and nicotine use: a systematic review and meta‐analysis

Yimer, Tesfa Mekonen, McClure‐Thomas, Caitlin, Stjepanovic, Daniel, Wilson, Jack, Chan, Gary Chung Kai, Hall, Wayne Denis and Leung, Janni (2024). The relationship between cannabis and nicotine use: a systematic review and meta‐analysis. Addiction, 119 (12), 2076-2087. doi: 10.1111/add.16642

The relationship between cannabis and nicotine use: a systematic review and meta‐analysis

2024

Journal Article

Wastewater‐based evaluation of the efficacy of oxycodone regulations in Australia

Verhagen, Rory, Gerber, Cobus, Thai, Phong K., Connor, Jason, Loveday, Bill, Bade, Richard, O'Brien, Jake, Jaunay, Emma L., Simpson, Bradley S., Chan, Gary, Hall, Wayne, Thomas, Kevin V., Mueller, Jochen F. and Tscharke, Benjamin J. (2024). Wastewater‐based evaluation of the efficacy of oxycodone regulations in Australia. Addiction, 119 (12), 2153-2161. doi: 10.1111/add.16653

Wastewater‐based evaluation of the efficacy of oxycodone regulations in Australia

2024

Journal Article

The relationship between young people social media use and alcohol use: a prospective cohort study

Cheng, Brandon, Lim, Carmen C.W., Teixeira, Juliane Pariz, Gullo, Matthew J., Chan, Gary C. K. and Connor, Jason P. (2024). The relationship between young people social media use and alcohol use: a prospective cohort study. Drug and Alcohol Dependence, 265 112478, 112478. doi: 10.1016/j.drugalcdep.2024.112478

The relationship between young people social media use and alcohol use: a prospective cohort study

2024

Journal Article

Routine outcome monitoring and feedback in alcohol and other drug treatment: A qualitative study of client perspectives on implementation

Pocuca, Nina, Tisdale, Calvert, Campbell, Gabrielle, Beck, Alison K., Ellem, Rhiannon, Quinn, Catherine A., Kelly, Peter J., Larance, Briony, Baker, Amanda L., Connor, Jason P., Marsden, John, Chan, Gary C. K., Connelly, Luke, Lenzen, Sabrina, Farrell, Michael and Hides, Leanne (2024). Routine outcome monitoring and feedback in alcohol and other drug treatment: A qualitative study of client perspectives on implementation. Drug and Alcohol Review, 44 (1), 226-238. doi: 10.1111/dar.13962

Routine outcome monitoring and feedback in alcohol and other drug treatment: A qualitative study of client perspectives on implementation

2024

Journal Article

“Everything’s a Challenge”: An Interview Study of ADHD Individuals in the Midst of the Prescription Stimulant Shortage

Johnson, Benjamin, Stjepanovic, Daniel, Leung, Janni and Chan, Gary C. K. (2024). “Everything’s a Challenge”: An Interview Study of ADHD Individuals in the Midst of the Prescription Stimulant Shortage. Journal of Attention Disorders, 29 (2), 120-127. doi: 10.1177/10870547241288351

“Everything’s a Challenge”: An Interview Study of ADHD Individuals in the Midst of the Prescription Stimulant Shortage

2024

Journal Article

Through the looking glass: an alcohol advertisement every 3 minutes

Rutherford, Brienna N., Leung, Janni, Stjepanović, Daniel and Chan, Gary C. K. (2024). Through the looking glass: an alcohol advertisement every 3 minutes. Drug and Alcohol Review, 43 (6), 1426-1434. doi: 10.1111/dar.13886

Through the looking glass: an alcohol advertisement every 3 minutes

2024

Journal Article

Alcohol use and alcohol use disorders in sub-Saharan Africa: a systematic review and meta-analysis

Belete, Habte, Yimer, Tesfa Mekonen, Dawson, Danielle, Espinosa, Dorothy C., Ambaw, Fentie, Connor, Jason P., Chan, Gary, Hides, Leanne and Leung, Janni (2024). Alcohol use and alcohol use disorders in sub-Saharan Africa: a systematic review and meta-analysis. Addiction, 119 (9), 1527-1540. doi: 10.1111/add.16514

Alcohol use and alcohol use disorders in sub-Saharan Africa: a systematic review and meta-analysis

2024

Journal Article

The impact of tobacco tax increases on cost-minimising behaviours and subsequent smoking cessation in Australia: an analysis of the International Tobacco Control Policy Evaluation Project

Cho, Ara, Scollo, Michelle, Chan, Gary, Driezen, Pete, Hyland, Andrew, Shang, Ce and Gartner, Coral E. (2024). The impact of tobacco tax increases on cost-minimising behaviours and subsequent smoking cessation in Australia: an analysis of the International Tobacco Control Policy Evaluation Project. Tobacco Control tc-2024-058776, tc-2024. doi: 10.1136/tc-2024-058776

The impact of tobacco tax increases on cost-minimising behaviours and subsequent smoking cessation in Australia: an analysis of the International Tobacco Control Policy Evaluation Project

2024

Journal Article

Effect of tobacco and e-cigarette-related social media content on youth

Ashley, Daniel P., Rutherford, Brienna N., Lim, Carmen C.W., Cheng, Brandon, Sun, Tianze, Vu, Gigi, Johnson, Benjamin, Chung, Jack, Huang, Sandy, Leung, Janni, Stjepanović, Daniel, Connor, Jason P. and Chan, Gary C.K. (2024). Effect of tobacco and e-cigarette-related social media content on youth. Journal of the National Medical Association, 116 (4), 420-420. doi: 10.1016/j.jnma.2024.07.023

Effect of tobacco and e-cigarette-related social media content on youth

2024

Journal Article

Temporal Trends of Per- and Polyfluoroalkyl Substances Concentrations Insights from Australian Human Biomonitoring 2002-2021 and the U.S. NHANES Programs 2003-2018

Taucare, Grechel, Chan, Gary, Nilsson, Sandra, Toms, Leisa-Maree L., Zhang, Xingyue, Mueller, Jochen F. and Jolliet, Olivier (2024). Temporal Trends of Per- and Polyfluoroalkyl Substances Concentrations Insights from Australian Human Biomonitoring 2002-2021 and the U.S. NHANES Programs 2003-2018. Environmental Research, 262 119777, 119777. doi: 10.1016/j.envres.2024.119777

Temporal Trends of Per- and Polyfluoroalkyl Substances Concentrations Insights from Australian Human Biomonitoring 2002-2021 and the U.S. NHANES Programs 2003-2018

2024

Journal Article

The Gaming Disorder Identification Test (GADIT) – a screening tool for Gaming Disorder based on ICD-11

Chan, Gary C. K., Saunders, John B., Stjepanović, Daniel, McClure-Thomas, Caitlin, Connor, Jason, Hides, Leanne, Wood, Andrew, King, Daniel, Siste, Kristiana, Long, Jiang and Leung, Janni K. (2024). The Gaming Disorder Identification Test (GADIT) – a screening tool for Gaming Disorder based on ICD-11. Journal of Behavioral Addictions, 13 (3), 729-741. doi: 10.1556/2006.2024.00038

The Gaming Disorder Identification Test (GADIT) – a screening tool for Gaming Disorder based on ICD-11

2024

Journal Article

The harms of promoting the lab leak hypothesis for SARS-CoV-2 origins without evidence

Alwine, James, Goodrum, Felicia, Banfield, Bruce, Bloom, David, Britt, William J., Broadbent, Andrew J., Campos, Samuel K., Casadevall, Arturo, Chan, Gary C., Cliffe, Anna R., Dermody, Terence, Duprex, Paul, Enquist, Lynn W., Frueh, Klaus, Geballe, Adam P., Gaglia, Marta, Goldstein, Stephen, Greninger, Alexander L., Gronvall, Gigi Kwick, Jung, Jae U., Kamil, Jeremy P., Lakdawala, Seema, Liu, Shan-Lu, Luftig, Micah, Moore, John P., Moscona, Anne, Neuman, Benjamin W., Nikolich, Janko Z., O'Connor, Christine ... Yurochko, Andrew (2024). The harms of promoting the lab leak hypothesis for SARS-CoV-2 origins without evidence. Journal of Virology, 98 (9). doi: 10.1128/jvi.01240-24

The harms of promoting the lab leak hypothesis for SARS-CoV-2 origins without evidence

2024

Journal Article

Systematic review and meta-analyses of cytisine to support tobacco cessation

Puljević, Cheneal, Stjepanović, Daniel, Meciar, Isabel, Kang, Heewon, Chan, Gary, Morphett, Kylie, Bendotti, Hollie, Kunwar, Garry and Gartner, Coral (2024). Systematic review and meta-analyses of cytisine to support tobacco cessation. Addiction, 119 (10), 1-13. doi: 10.1111/add.16592

Systematic review and meta-analyses of cytisine to support tobacco cessation

2024

Journal Article

Preventable deaths attributable to second-hand smoke in Southeast Asia—analysis of the Global Burden of Disease Study 2019

Leung, Janni, Lim, Carmen, Sun, Tianze, Vu, Giang, McClure-Thomas, Caitlin, Bao, Yangping, Tran, Lucy, Santo, Thomas, Fausiah, Fitri, Farassania, Ghea, Chan, Gary Chung Kai and Sebayang, Susy K. (2024). Preventable deaths attributable to second-hand smoke in Southeast Asia—analysis of the Global Burden of Disease Study 2019. International Journal of Public Health, 69 1606446. doi: 10.3389/ijph.2024.1606446

Preventable deaths attributable to second-hand smoke in Southeast Asia—analysis of the Global Burden of Disease Study 2019

2024

Journal Article

Transitions to polysubstance use: Prospective cohort study of adolescents in Australia

Black, Nicola, Noghrehchi, Firouzeh, Yuen, Wing See, Aiken, Alexandra, Clare, Philip J., Chan, Gary, Kypri, Kypros, McBride, Nyanda, Bruno, Raimondo, Slade, Tim, Boland, Veronica, Mattick, Richard and Peacock, Amy (2024). Transitions to polysubstance use: Prospective cohort study of adolescents in Australia. Addiction, 119 (6), 1100-1110. doi: 10.1111/add.16468

Transitions to polysubstance use: Prospective cohort study of adolescents in Australia

Current funding

  • 2025 - 2029
    Unleashing the power of AI: Supercharging social media campaigns against youth vaping
    NHMRC Investigator Grants
    Open grant
  • 2024 - 2029
    Implementation, Effectiveness and Sustainability of a Co-designed Value-based Brief Intervention Model of Healthcare in Alcohol and Other Drug Services
    NHMRC Partnership Projects
    Open grant
  • 2024 - 2028
    Unclouding the future: Igniting change with an AI-powered social media campaign against youth vaping
    NHMRC MRFF PPHR - Maternal Health and Healthy Lifestyles
    Open grant
  • 2023 - 2028
    The Interdisciplinary Tobacco Endgame Research Network (INTER-Net)
    NHMRC Synergy Grants
    Open grant
  • 2022 - 2027
    Centre of Research Excellence in Alcohol and Other Drug sector capacity building for outcome focused, evidence based and cost effective care (CRE in AOD -CB)
    NHMRC Centres of Research Excellence
    Open grant

Past funding

  • 2023 - 2024
    Establishing an International Consortium on video gaming addiction
    U21 Health Sciences Group International Projects Fund
    Open grant
  • 2023
    Review of alcohol and other drugs program
    Queensland Department of Education
    Open grant
  • 2023
    How can we minimise the adolescent uptake of vaping and related social and health harm?
    Academy of the Social Sciences in Australia
    Open grant
  • 2022 - 2023
    Causal inference with observational data in addiction research
    Australian Prevention Partnership Centre Administered by The Sax Institute
    Open grant
  • 2022
    Cannabis - A joyful treat or devil's fruit?
    UQ Foundation Research Excellence Awards
    Open grant
  • 2021 - 2024
    BALANCE: Promoting wellBeing in AdoLescent and young Adult cancer survivors
    NHMRC Partnership Projects
    Open grant
  • 2020 - 2024
    E-cigarettes and vaping: Holy grail of tobacco control or gateway to a public health disaster?
    NHMRC Investigator Grants
    Open grant
  • 2017 - 2018
    Informing future policies on cannabis in Australia. Lessons from new trends in the USA and from the history of tobacco control.
    UQ Early Career Researcher
    Open grant
  • 2016 - 2019
    Pathways to multiple substance use: informing the next generation of prevention science
    UQ Fellowships
    Open grant

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

  • 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.

  • 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.

  • 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

Completed supervision

Enquiries

Contact Associate Professor Gary Chung Kai Chan directly for media enquiries about:

  • alcohol
  • cannabis
  • Substance use

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