Overview
Background
A/Prof Janni Leung (PhD) is an NHMRC Development Fellow at National Centre for Youth Substance Use Research (NCYSUR) at The University of Queensland. Their program of research includes investigating the epidemiology of substance use and mental health because they are both major public health issues that commonly occur together. This research program had made paradigm-changing development through 200+ articles, which have recognised impact (15,000+ cites, 30% output in the top 1% citation percentile). Many of their work involves conducting systematic reviews, meta-analyses, and applying statistical models to epidemiological data on addiction and mental health issues to better understand their impacts on populations. Her work is used to inform policies on how to reduce the disease burden caused by addiction and mental health problems in Australia and overseas. Janni is committed to conducting high-quality rigorous research to generate empirical epidemiological evidence to inform decisions to prevent addiction-related harms in the population.
Teaching and supervision: They have qualifications and training in public health, sociology, and psychology. In addition, they have strong research and teaching experience in epidemiology and biostatistics. Janni has worked with a range of students from diverse demographic and cultural backgrounds, including mature-aged students and students with family responsibilities. She currently has a topic available for a self-motivated student interested in addiction research. Janni’s current research focus is on the epidemiology and disease burden associated with mental and substance use disorders across the globe.
Consultation: Janni is available for private consultation and workshop presentations on request for various research methodological and data analysis topics, e.g. systematic reviews and meta-analysis, questionnaire and survey designs, cross-sectional and longitudinal analyses.
Where can you find Janni: Janni is based at the UQ St Lucia campus with regular visits to the Long Pocket and Herston campuses.
Availability
- Associate Professor Janni Leung is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor of Arts, The University of Queensland
- Bachelor of Health Sciences, The University of Queensland
- Doctor of Philosophy, The University of Queensland
Research interests
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Substance use, substance abuse, and substance dependence
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Mental health and mental disorders
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Epidemiology, public health
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Burden of disease
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Higher education
Works
Search Professor Janni Leung’s works on UQ eSpace
2024
Journal Article
The use and knowledge around vaping and their correlates among university students—a cross-sectional Australian Study
Leung, Janni, Ellem, Rhiannon, Glasgow, Sophia, Rowe, Amy-Leigh, Gardner, Lauren, Davidson, Lily, Campbell, Gabrielle, Pocuca, Nina, Tisdale, Calvert, Chan, Gary and Hides, Leanne (2024). The use and knowledge around vaping and their correlates among university students—a cross-sectional Australian Study. International Journal of Mental Health and Addiction, 23 (4), 1-17. doi: 10.1007/s11469-024-01281-5
2024
Journal Article
A systematic review of second-hand smoking mass media campaigns (2002–2022)
Lim, Carmen C. W., Rutherford, Brienna, Gartner, Coral, McClure-Thomas, Caitlin, Foo, Shaun, Su, Fang-Yi, Scheurer, Roman, Sebayang, Susy, Chan, Gary, Stjepanović, Daniel, Fausiah, Fitri, Farassania, Ghea and Leung, Janni (2024). A systematic review of second-hand smoking mass media campaigns (2002–2022). BMC Public Health, 24 (1) 693, 693. doi: 10.1186/s12889-024-18222-5
2024
Journal Article
Participation in Australian drug treatment programs for individuals engaging in high‐risk substance use: data from a nationally representative sample
Leung, Janni, Yimer, Tesfa Mekonen, Chiu, Vivian, Hall, Wayne D., Connor, Jason P. and Chan, Gary Chung Kai (2024). Participation in Australian drug treatment programs for individuals engaging in high‐risk substance use: data from a nationally representative sample. Drug and Alcohol Review, 43 (3), 688-693. doi: 10.1111/dar.13792
2024
Journal Article
Prevalence and correlates of positive parental attitudes towards cannabis use and use intention in Australia during 2016 and 2019
Chiu, Vivian, Dawson, Danielle, Chan, Gary, Hall, Wayne, Hides, Leanne and Leung, Janni (2024). Prevalence and correlates of positive parental attitudes towards cannabis use and use intention in Australia during 2016 and 2019. Addictive Behaviors, 150 107917, 1-6. doi: 10.1016/j.addbeh.2023.107917
2024
Journal Article
Investigating the critical period for alcohol or other drug-related presentations following access to residential substance use treatment: a data linkage study
Tisdale, Calvert, Leung, Janni, de Andrade, Dominique and Hides, Leanne (2024). Investigating the critical period for alcohol or other drug-related presentations following access to residential substance use treatment: a data linkage study. International Journal of Mental Health and Addiction, 23 (4), 1-29. doi: 10.1007/s11469-024-01248-6
2024
Journal Article
Extended hours of video game play and negative physical symptoms and pain
Leung, Janni, Saunders, John B., Stjepanović, Daniel, Tisdale, Calvert, McClure-Thomas, Caitlin, Connor, Jason, Gullo, Matthew, Wood, Andrew and Kai Chan, Gary Chung (2024). Extended hours of video game play and negative physical symptoms and pain. Computers in Human Behavior, 155 108181, 108181. doi: 10.1016/j.chb.2024.108181
2024
Other Outputs
Indonesia smoke-free toolkit (Bahasa Indonesia version)
McClure-Thomas, Caitlin, Farassania, Ghea, Lim, Carmen, Fausiah, Fitri, Su, Fang-Yi, Sebayang, Susy K., Nordhani, Mohammad and Leung, Janni (2024). Indonesia smoke-free toolkit (Bahasa Indonesia version). Canberra, ACT, Australia:
2024
Journal Article
How much cannabis is used in a joint in Australia? An experimental investigation into use by potency and frequency
Dawson, Danielle, Stjepanovic, Daniel, Lorenzetti, Valentina, Hall, Wayne D. and Leung, Janni (2024). How much cannabis is used in a joint in Australia? An experimental investigation into use by potency and frequency. Drug and Alcohol Review, 43 (1), 226-232. doi: 10.1111/dar.13747
2024
Journal Article
Changes in patterns of youth multiple tobacco and/or e-cigarette product use in the US between 2014 and 2020: a multiple-group latent class analysis
Sun, Tianze, Lim, Carmen C W, Rutherford, Brienna N., Johnson, Benjamin, Connor, Jason, Gartner, Coral E, Hall, Wayne D, Leung, Janni and Chan, Gary (2024). Changes in patterns of youth multiple tobacco and/or e-cigarette product use in the US between 2014 and 2020: a multiple-group latent class analysis. Tobacco Control, 33 (1), 21-29. doi: 10.1136/tobaccocontrol-2022-057266
2023
Journal Article
Treatment-seeking behavior and barriers to mental health service utilization for depressive symptoms and hazardous drinking: The role of religious and traditional healers in mental healthcare of Northwest Ethiopia
Yimer, Tesfa Mekonen, Chan, Gary C.K., Belete, Habte, Hides, Leanne and Leung, Janni (2023). Treatment-seeking behavior and barriers to mental health service utilization for depressive symptoms and hazardous drinking: The role of religious and traditional healers in mental healthcare of Northwest Ethiopia. Cambridge Prisms: Global Mental Health, 10 e92, 1-12. doi: 10.1017/gmh.2023.88
2023
Journal Article
Viral vaping: a systematic review and meta analysis of e-cigarette and tobacco-related social media content and its influence on youth behaviours and attitudes
Rutherford, Brienna N., Lim, Carmen C.W., Cheng, Brandon, Sun, Tianze, Vu, Giang T., Johnson, Benjamin, Ashley, Daniel Paul, Chung, Jack, Huang, Sandy, Leung, Janni, Stjepanović, Daniel, Connor, Jason P. and Chan, Gary C.K. (2023). Viral vaping: a systematic review and meta analysis of e-cigarette and tobacco-related social media content and its influence on youth behaviours and attitudes. Addictive Behaviors, 147 107828, 107828. doi: 10.1016/j.addbeh.2023.107828
2023
Other Outputs
Indonesia smoke-free toolkit
McClure-Thomas, Caitlin, Farassania, Ghea, Lim, Carmen, Fitri Fausiah, Su, Fang-Yi, Sebayang, Susy K., Nordhani, Mohammad and Leung, Janni (2023). Indonesia smoke-free toolkit. Canberra, ACT, Australia:
2023
Journal Article
Global, regional, and country-level coverage of testing and treatment for HIV and hepatitis C infection among people who inject drugs: a systematic review
Hajarizadeh, Behzad, Kairouz, Abe, Ottaviano, Sophie, Ireland, Jeremy, Willing, Alex, Cunningham, Evan, Webb, Paige, Colledge-Frisby, Samantha, Wheeler, Alice, Leung, Janni, Tran, Lucy T, Price, Olivia, Vickerman, Peter, Farrell, Michael, Hickman, Matthew, Dore, Gregory J, Bergenström, Anne, Degenhardt, Louisa and Grebely, Jason (2023). Global, regional, and country-level coverage of testing and treatment for HIV and hepatitis C infection among people who inject drugs: a systematic review. The Lancet Global Health, 11 (12), e1885-e1898. doi: 10.1016/s2214-109x(23)00461-8
2023
Journal Article
Adolescent exposure to online advertisements and promotions for tobacco products on the internet - a cross-sectional analysis of the Global Youth Tobacco Surveys
Leung, Janni, Lim, Carmen, McClure-Thomas, Caitlin, Foo, Shaun, Sebayang, Susy, Farassania, Ghea, Fausiah, Fitri, Gartner, Coral and Chan, Gary C. K. (2023). Adolescent exposure to online advertisements and promotions for tobacco products on the internet - a cross-sectional analysis of the Global Youth Tobacco Surveys. Journal of Adolescent Health, 73 (6), 1138-1144. doi: 10.1016/j.jadohealth.2023.07.019
2023
Journal Article
Associations between demographic variables, psychosocial health, quality of life, and happiness in the context of COVID-19
Østertun Geirdal, Amy K., Leung, Janni, Price, Daicia, Kabelenga, Isaac, Lamph, Gary, Thygesen, Hilde, Ruffolo, Mary R. and Bonsaksen, Tore (2023). Associations between demographic variables, psychosocial health, quality of life, and happiness in the context of COVID-19. Applied Research in Quality of Life, 19 (2), 603-617. doi: 10.1007/s11482-023-10255-z
2023
Journal Article
Schooling-at-home and extra child-caring responsibilities were associated with parental mental health, psychosocial well-being, and loneliness
Leung, Janni, Price, Daicia, Bonsaksen, Tore, Ruffolo, Mary, Thygesen, Hilde, McClure-Thomas, Caitlin, Schoultz, Mariyana and Ostertun Geirdal, Amy (2023). Schooling-at-home and extra child-caring responsibilities were associated with parental mental health, psychosocial well-being, and loneliness. Social Education Research, 5 (1), 1-14. doi: 10.37256/ser.5120243332
2023
Journal Article
Efficacy of smokeless tobacco for smoking cessation: a systematic review and meta-analysis
Stjepanović, Daniel, Phartiyal, Preeti, Leung, Janni, Lim, Carmen C. W., Sun, Tianze, Chung, Jack Yiu Chak, Gartner, Coral E., Hall, Wayne D. and Chan, Gary C. K. (2023). Efficacy of smokeless tobacco for smoking cessation: a systematic review and meta-analysis. Tobacco Control, 32 (6) 057019, 1-12. doi: 10.1136/tobaccocontrol-2021-057019
2023
Conference Publication
Examining the recurrent risk of health service access for suicidal behaviours and suicidal death following residential treatment for substance use disorders: A recurrent event analysis
Tisdale, Calvert, Leung, Janni, de Andrade, Dominique, Campbell, Gabrielle and Hides, Leanne (2023). Examining the recurrent risk of health service access for suicidal behaviours and suicidal death following residential treatment for substance use disorders: A recurrent event analysis. APSAD 2023 Conference, Adelaide, SA, Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing.
2023
Conference Publication
The burden of preventable deaths attributable to second-hand smoke in Southeast Asia - Analysis of the global burden of disease study 2019
Leung, Janni, Lim, Carmen C. W., Sun, Tianze, Vu, Giang, McClure-Thomas, Caitlin, Bao, Yanping, Santo, Thomas, Tran, Lucy T., Fausiah, Fitri, Farassania, Ghea, Chan, Gary Chung Kai and Sebayang, Susy Katikana (2023). The burden of preventable deaths attributable to second-hand smoke in Southeast Asia - Analysis of the global burden of disease study 2019. APSAD 2023 Conference, Adelaide, SA, Australia, 12-15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing. doi: 10.1111/dar.13749
2023
Conference Publication
Deciphering the buzz of Delta-8 THC in the USA on Twitter
Lim, Carmen C. W., Dawson, Danielle, McClure-Thomas, Caitlin, Stjepanovic, Daniel, Leung, Janni, Chan, Gary Chung Kai, Connor, Jason P. and Hall, Wayne D. (2023). Deciphering the buzz of Delta-8 THC in the USA on Twitter. APSAD 2023 Conference, Adelaide, SA, Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing. doi: 10.1111/dar.13749
Funding
Current funding
Past funding
Supervision
Availability
- Associate Professor Janni Leung is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Available projects
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Available Dissertation and Thesis Topics (No International Scholarships Available)
How to apply – Send your CV, academic transcript, and cover letter to <j.leung1@uq.edu.au>
- Epidemiology of mental and substance use disorders
- Public health impacts of cannabis legalisation
- Video gaming addiction in youth, adults, and later life across different population groups
*Propose your own topics. Research projects would be suitable to those:
- Highly motivated, proactive, and self-directed
- Strong written and oral communication skills
- Quantitative analysis experience
- Has completed or is enrolled to complete the UQ library workshop on systematic reviews and database searching
- Flexibility in independent work and values contribution to team work
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Areas of RHD supervision
- Psychiatry epidemiology
- Alcohol use disorders
- Alcohol drinking behavior
- Tobacco smoking
- Gaming addiction
- Video game play behaviours
- Injecting drug use
- Person who inject drugs
- Substance use
- Substance dependence
- Substance abuse
- Drug use disorders
- Amphetamine / methamphetamine
- Cocaine / Heroin
- Marijuana / Cannabis
- Psycho-stimulants
- Mental health and mental disorders
- Depression & anxiety
- Public attitudes
- Burden of disease
- Treatment rates and treatment gaps
- Risk factors and outcomes of substance use
- Systematic reviews and meta-analyses
Supervision history
Current supervision
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Doctor Philosophy
Population-level of substance use and health outcomes
Principal Advisor
Other advisors: Associate Professor Gary Chung Kai Chan, Professor Leanne Hides, Dr Carmen Lim
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Doctor Philosophy
Adolescent exposure to online cannabis advertisements
Principal Advisor
Other advisors: Professor Jason Connor, Associate Professor Gary Chung Kai Chan, Dr Tesfa Yimer
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Doctor Philosophy
Medicinal Cannabis Use in Australia
Principal Advisor
Other advisors: Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Associate Professor Gary Chung Kai Chan
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Doctor Philosophy
The Rise of Cannabis Vaping: Current Trends, Psychological Impacts and Public Health Policy Implications
Associate Advisor
Other advisors: Professor Jason Connor, Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Associate Professor Gary Chung Kai Chan
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Doctor Philosophy
Learning from the opioid crisis - Preventing the proliferation of prescription stimulant for non-medical use
Associate Advisor
Other advisors: Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Dr Natalie Thomas, Associate Professor Gary Chung Kai Chan
Completed supervision
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2024
Doctor Philosophy
Utilisation of data linkage to determine the long-term health and substance use outcomes of residential substance use treatment
Principal Advisor
Other advisors: Professor Leanne Hides, Dr Dominique De Andrade
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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
Principal Advisor
Other advisors: Associate Professor Gary Chung Kai Chan, Professor Leanne Hides
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2023
Doctor Philosophy
Cannabis Legalisation: An Empirical Analysis Causes of Attitudinal Change in the U.S. and Australia
Principal Advisor
Other advisors: Emeritus Professor Wayne Hall, Associate Professor Gary Chung Kai Chan, Professor Leanne Hides
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2024
Doctor Philosophy
Social Substances: The Online Landscape of Substance Use
Associate Advisor
Other advisors: Professor Jason Connor, Dr Daniel Stjepanovic, Associate Professor Gary Chung Kai Chan
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2024
Doctor Philosophy
Evaluating the Public Health Impacts of Vaping Product Use
Associate Advisor
Other advisors: Professor Jason Connor, Emeritus Professor Wayne Hall, Professor Coral Gartner, Associate Professor Gary Chung Kai Chan
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2023
Doctor Philosophy
Emerging trends of cannabis vaping in the USA and Canada: Prevalence, correlates, and online presence
Associate Advisor
Other advisors: Professor Jason Connor, Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic, Professor Coral Gartner, Associate Professor Gary Chung Kai Chan
Media
Enquiries
Contact Associate Professor Janni Leung directly for media enquiries about:
- addiction epidemiology
- alcohol harm
- behavioural addictions
- cannabis epidemiology
- cannabis legalisation
- digital gaming
- e-cigarettes / vaping
- mental health
- public health
- substance use
- video game addiction
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