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 100+ 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 statistical 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. You may also catch Janni at the APSAD conference.
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
2023
Journal Article
Reliability of online self-report versions of the Australian Treatment Outcome Profile (ATOP) and Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) among people in residential treatment for substance use problems
Carlyle, Molly, Walter, Zoe C., Theroux, Bronwyn, Leung, Janni and Hides, Leanne (2023). Reliability of online self-report versions of the Australian Treatment Outcome Profile (ATOP) and Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) among people in residential treatment for substance use problems. Addictive Behaviors, 144 107756, 107756. doi: 10.1016/j.addbeh.2023.107756
2023
Book Chapter
Illicit drug use and violence
Stjepanović, Daniel, Hall, Wayne and Leung, Janni (2023). Illicit drug use and violence. Handbook of clinical neurology. (pp. 121-145) Amsterdam, Netherlands: Elsevier. doi: 10.1016/B978-0-12-821375-9.00010-4
2023
Journal Article
Promotions of vaping products near schools and central business district: a descriptive cross‐sectional study
Leung, Janni, Sun, Tianze, Vu, Giang, Dawson, Danielle and Chan, Gary Chung Kai (2023). Promotions of vaping products near schools and central business district: a descriptive cross‐sectional study. Health Promotion Journal of Australia, 35 (3), 835-839. doi: 10.1002/hpja.791
2023
Journal Article
Factors associated with trust in public authorities among adults in Norway, United Kingdom, United States, and Australia two years after the COVID-19 outbreak
Price, Daicia, Bonsaksen, Tore, Leung, Janni, McClure-Thomas, Caitlin, Ruffolo, Mary, Lamph, Gary, Kabelenga, Isaac and Ostertun Geirdal, Amy (2023). Factors associated with trust in public authorities among adults in Norway, United Kingdom, United States, and Australia two years after the COVID-19 outbreak. International Journal of Public Health, 68 1605846, 1-7. doi: 10.3389/ijph.2023.1605846
2023
Journal Article
Vaping on TikTok: a systematic thematic analysis
Sun, Tianze, Lim, Carmen C.W., Chung, Jack, Cheng, Brandon, Davidson, Lily, Tisdale, Calvert, Leung, Janni, Gartner, Coral E., Connor, Jason, Hall, Wayne D. and Chan, Gary C.K. (2023). Vaping on TikTok: a systematic thematic analysis. Tobacco Control, 32 (2), 251-254. doi: 10.1136/tobaccocontrol-2021-056619
2023
Journal Article
Seeking order in patterns of polysubstance use
Connor, Jason P., Leung, Janni, Chan, Gary C.K. and Stjepanović, Daniel (2023). Seeking order in patterns of polysubstance use . Current Opinion in Psychiatry, 36 (4), 263-268. doi: 10.1097/yco.0000000000000881
2023
Journal Article
Common adverse events of electronic cigarettes compared with traditional nicotine replacement therapies: a systematic review and meta‐analysis
Shanmuga Anandan, Aathavan, Leung, Janni, Chan, Gary C. K., Sun, Tianze, Connor, Jason P., Hall, Wayne D. and Stjepanović, Daniel (2023). Common adverse events of electronic cigarettes compared with traditional nicotine replacement therapies: a systematic review and meta‐analysis. Drug and Alcohol Review, 42 (5), 1278-1287. doi: 10.1111/dar.13674
2023
Journal Article
The implementation and public health impacts of cannabis legalization in Canada: a systematic review
Hall, Wayne, Stjepanović, Daniel, Dawson, Danielle and Leung, Janni (2023). The implementation and public health impacts of cannabis legalization in Canada: a systematic review. Addiction, 118 (11), 2062-2072. doi: 10.1111/add.16274
2023
Journal Article
E-Cigarette Use Among High School Students—a Cross-Sectional Study of Associated Risk Factors for the Use of Flavour-Only and Nicotine Vapes
Leung, Janni, Tisdale, Calvert, Choi, Jisu, Ellem, Rhiannon, Davidson, Lily, Chan, Gary C. K., White, Melanie J., Kavanagh, David J., Quinn, Catherine and Hides, Leanne (2023). E-Cigarette Use Among High School Students—a Cross-Sectional Study of Associated Risk Factors for the Use of Flavour-Only and Nicotine Vapes. International Journal of Mental Health and Addiction, 1-15. doi: 10.1007/s11469-023-01099-7
2023
Journal Article
Motivation and hesitancies in obtaining the COVID-19 vaccine—a cross-sectional study in Norway, USA, UK, and Australia
Leung, Janni, Price, Daicia, McClure-Thomas, Caitlin, Bonsaksen, Tore, Ruffolo, Mary, Kabelenga, Isaac, Lamph, Gary and Geirdal, Amy Østertun (2023). Motivation and hesitancies in obtaining the COVID-19 vaccine—a cross-sectional study in Norway, USA, UK, and Australia. Vaccines, 11 (6) 1086, 1-13. doi: 10.3390/vaccines11061086
2023
Journal Article
Predicting the long-term effects of electronic cigarette use on population health: a systematic review of modelling studies
Vu, Giang T, Stjepanović, Daniel, Sun, Tianze, Leung, Janni, Chung, Jack, Connor, Jason, Thai, Phong K, Gartner, Coral E, Tran, Bach Xuan, Hall, Wayne D and Chan, Gary (2023). Predicting the long-term effects of electronic cigarette use on population health: a systematic review of modelling studies. Tobacco Control tc-2022-057748, 1-8. doi: 10.1136/tc-2022-057748
2023
Journal Article
All‐cause and cause‐specific mortality in individuals with an alcohol‐related emergency or hospital inpatient presentation: a retrospective data linkage cohort study
Leung, Janni, Chiu, Vivian, Man, Nicola, Yuen, Wing See, Dobbins, Timothy, Dunlop, Adrian, Gisev, Natasa, Hall, Wayne, Larney, Sarah, Pearson, Sallie‐Anne, Degenhardt, Louisa and Peacock, Amy (2023). All‐cause and cause‐specific mortality in individuals with an alcohol‐related emergency or hospital inpatient presentation: a retrospective data linkage cohort study. Addiction, 118 (9), 1751-1762. doi: 10.1111/add.16218
2023
Journal Article
Temperament and character in an Australian sample: examining cross-sectional associations of personality with age, sex, and satisfaction with life
Eley, Diann S., Bansal, Vikas, Cloninger, C. Robert and Leung, Janni (2023). Temperament and character in an Australian sample: examining cross-sectional associations of personality with age, sex, and satisfaction with life. PeerJ, 11 e15342, e15342. doi: 10.7717/peerj.15342
2023
Journal Article
Epidemiology of injecting drug use, prevalence of injecting-related harm, and exposure to behavioural and environmental risks among people who inject drugs: a systematic review
Degenhardt, Louisa, Webb, Paige, Colledge-Frisby, Samantha, Ireland, Jeremy, Wheeler, Alice, Ottaviano, Sophie, Willing, Alex, Kairouz, Abe, Cunningham, Evan B, Hajarizadeh, Behzad, Leung, Janni, Tran, Lucy T, Price, Olivia, Peacock, Amy, Vickerman, Peter, Farrell, Michael, Dore, Gregory J, Hickman, Matthew and Grebely, Jason (2023). Epidemiology of injecting drug use, prevalence of injecting-related harm, and exposure to behavioural and environmental risks among people who inject drugs: a systematic review. The Lancet Global Health, 11 (5), e659-e672. doi: 10.1016/s2214-109x(23)00057-8
2023
Journal Article
Global coverage of interventions to prevent and manage drug-related harms among people who inject drugs: a systematic review
Colledge-Frisby, Samantha, Ottaviano, Sophie, Webb, Paige, Grebely, Jason, Wheeler, Alice, Cunningham, Evan B, Hajarizadeh, Behzad, Leung, Janni, Peacock, Amy, Vickerman, Peter, Farrell, Michael, Dore, Greg, Hickman, Matthew and Degenhardt, Louisa (2023). Global coverage of interventions to prevent and manage drug-related harms among people who inject drugs: a systematic review. The Lancet Global Health, 11 (5), e673-e683. doi: 10.1016/s2214-109x(23)00058-x
2023
Journal Article
A latent class analysis of patterns of tobacco and cannabis use in Australia and their health‐related correlates
Lim, Carmen C. W., Leung, Janni K. Y., Gravely, Shannon, Gartner, Coral, Sun, Tianze, Chiu, Vivian, Chung, Jack Y. C., Stjepanović, Daniel, Connor, Jason, Scheurer, Roman W., Hall, Wayne and Chan, Gary C. K. (2023). A latent class analysis of patterns of tobacco and cannabis use in Australia and their health‐related correlates. Drug and Alcohol Review, 42 (4), 815-826. doi: 10.1111/dar.13614
2023
Journal Article
Do not let the ideal be the enemy of good enough regulation
Hall, Wayne, Leung, Janni and Carlini, Beatriz H. (2023). Do not let the ideal be the enemy of good enough regulation. Addiction, 118 (6), 1009-1010. doi: 10.1111/add.16201
2023
Journal Article
Global prevalence of heated tobacco product use, 2015‐2022: a systematic review and meta‐analysis
Sun, Tianze, Anandan, Aathavan, Lim, Carmen C. W., East, Katherine, Xu, Steve S., Quah, Anne C. K., Rutherford, Brienna N., Johnson, Benjamin, Qi, Yaqi, Stjepanovic, Daniel, Leung, Janni, Connor, Jason P., Gartner, Coral, Hall, Wayne D., Vu, Giang and Chan, Gary C. K. (2023). Global prevalence of heated tobacco product use, 2015‐2022: a systematic review and meta‐analysis. Addiction, 118 (8), 1430-1444. doi: 10.1111/add.16199
2023
Journal Article
Cannabis use in Sub‐Saharan Africa: a systematic review and meta‐analysis
Belete, Habte, Mekonen, Tesfa, Espinosa, Dorothy C., Ambaw, Fentie, Connor, Jason, Chan, Gary, Hides, Leanne, Hall, Wayne and Leung, Janni (2023). Cannabis use in Sub‐Saharan Africa: a systematic review and meta‐analysis. Addiction, 118 (7), 1201-1215. doi: 10.1111/add.16170
2023
Journal Article
Associations between the prevalence of chronic hepatitis B among people who inject drugs and country‐level characteristics: an ecological analysis
Syangbo, Anjalee, Hickman, Matthew, Colledge‐Frisby, Samantha, Leung, Janni, Grebely, Jason, Larney, Sarah, Degenhardt, Louisa and Trickey, Adam (2023). Associations between the prevalence of chronic hepatitis B among people who inject drugs and country‐level characteristics: an ecological analysis. Drug and Alcohol Review, 42 (3), 569-581. doi: 10.1111/dar.13595
Funding
Current funding
Past funding
Supervision
Availability
- Associate Professor Janni Leung is:
- Available for supervision
Before you email them, read our advice on how to contact 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
- Harmful alcohol use and alcohol use disorders
- Video gaming addiction in youth and across different population groups
- Smoking in South-East Asia
- Substance use treatment service use
- Cost-effectiveness of addiction interventions
*Propose your own topics. Research projects would be suitable to those:
- Highly motivated, proactive, and self-directed
- Strong written and oral communication skills
- Has completed or is enrolled to complete the UQ library workshop on systematic reviews and database searching
- Able to travel to St Lucia, The University of Queensland
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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
Adolescent exposure to online cannabis advertisements
Principal Advisor
Other advisors: Professor Jason Connor, Associate Professor Gary Chung Kai Chan
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Doctor Philosophy
Medicinal Cannabis Use in Australia
Principal Advisor
Other advisors: Emeritus Professor Wayne Hall, Dr Daniel Stjepanovic
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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
Principal Advisor
Other advisors: Associate Professor Gary Chung Kai Chan, Professor Leanne Hides, Dr Carmen Lim
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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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Doctor Philosophy
Social media and substance use among young people
Associate Advisor
Other advisors: Professor Jason Connor, Dr Daniel Stjepanovic, Associate Professor Gary Chung Kai Chan
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Doctor Philosophy
Impacts of Cannabis Use and Cannabis Vaping - Insight into Australian Cannabis Policies
Associate Advisor
Other advisors: 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, Associate Professor Gary Chung Kai Chan, Dr Natalie Thomas
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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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:
- Disease burden
- Mental health
- Substance abuse
- Substance dependence
- Substance use
Need help?
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