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
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
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
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
2023
Conference Publication
E-cigarette use among high school students - a cross-sectional study of associated individual risk factors for the use of flavour-only and nicotine vapes
Leung, Janni, Tisdale, Calvert, Ellem, Rhiannon, Choi, Jisu, Davidson, Lily, Chan, Gary ChungKai, White, Melanie, Kavanagh, David, Quinn, Catherine and Hides, Leanne (2023). E-cigarette use among high school students - a cross-sectional study of associated individual risk factors for the use of flavour-only and nicotine vapes. APSAD 2023 Conference, Adelaide, SA Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing.
2023
Conference Publication
Longitudinal association between exposure to e-cigarette advertising and youth e-cigarette use in the United States
Sun, Tianze, Vu, Giang, Lim, Carmen C. W., Johnson, Ben, Stjepanovic, Daniel, Leung, Janni, Connor, Jason P., Gartner, Coral, Hall, Wayne D. and Chan, Gary C. K. (2023). Longitudinal association between exposure to e-cigarette advertising and youth e-cigarette use in the United States. 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
Protocol of a randomised controlled trial of a school-based eHealth intervention to prevent e-cigarette use among adolescents: The OurFutures Vaping Program
Gardner, Lauren A., Rowe, Amy-Leigh, Stockings, Emily, Champion, Katrina E., Hides, Leanne, McBride, Nyanda, Allsop, Steve, O'Dean, Siobhan M., Sunderland, Matthew, Lee, Yong Yi, Mihalopoulos, Cathy, Freeman, Becky, Leung, Janni, McRobbie, Hayden, Stapinski, Lexine, Lee, Nicole, Thornton, Louise, Birrell, Louise, Teesson, Maree and Newton, Nicola C. (2023). Protocol of a randomised controlled trial of a school-based eHealth intervention to prevent e-cigarette use among adolescents: The OurFutures Vaping Program. APSAD 2023 Conference, Adelaide, SA, Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing.
2023
Conference Publication
A systematic review and meta-analysis of the relationship between smoking and intelligence measures
Vu, Giang T., Stjepanovic, Daniel, Sun, Tianze, Leung, Janni, Qiu, Yaqi, Thai, Phong, Connor, Jason P., Gartner, Coral, Hall, Wayne D. and Chan, Gary Chung Kai (2023). A systematic review and meta-analysis of the relationship between smoking and intelligence measures. APSAD 2023 Conference, Adelaide, SA, Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
2023
Journal Article
Longitudinal association between exposure to e-cigarette advertising and youth e-cigarette use in the United States
Sun, Tianze, Vu, Giang, Lim, Carmen C.W., Johnson, Ben, Stjepanović, Daniel, Leung, Janni, Connor, Jason P., Gartner, Coral, Hall, Wayne D. and Chan, Gary C.K. (2023). Longitudinal association between exposure to e-cigarette advertising and youth e-cigarette use in the United States. Addictive Behaviors, 146 107810, 1-6. doi: 10.1016/j.addbeh.2023.107810
2023
Conference Publication
Drink the rainbow: exploring drinking challenge content on TikTok
Rutherford, Brienna, Gordon, Claudia, Chia, Jolene, Leung, Janni, Stjepanovic, Daniel, Connor, Jason P. and Chan, Gary Chung Kai (2023). Drink the rainbow: exploring drinking challenge content on TikTok. 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
Addressing Indonesia's tobacco public health crisis: Promoting a smoke-free Indonesia
McClure-Thomas, Caitlin, Lim, Carmen C. W., Fausiah, Fitri, Farassania, Ghea, Sebayang, Susy Katikana and Leung, Janni (2023). Addressing Indonesia's tobacco public health crisis: Promoting a smoke-free Indonesia. APSAD 2023 Conference, Adelaide, SA Australia, 12–15 November 2023. Chichester, West Sussex United Kingdom: Wiley-Blackwell Publishing. doi: 10.1111/dar.13749
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
Participation in Australian drug treatment programs for individuals engaging in high-risk substances use: data from a nationally representative sample
Leung, Janni, Mekonen, Tesfa, Chiu, Vivian, Hall, Wayne D., Connor, Jason P. and Chan, Gary Chung Kai (2023). Participation in Australian drug treatment programs for individuals engaging in high-risk substances use: data from a nationally representative sample. 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
Characteristics of women with symptoms of gaming disorder in Australia, Canada, USA, and UK - Findings from the 2022 International Gaming Study
Leung, Janni, Chan, Gary, Stjepanovic, Daniel, Tisdale, Calvert, Saunders, John, Gullo, Matthew, Hides, Leanne and Connor, Jason (2023). Characteristics of women with symptoms of gaming disorder in Australia, Canada, USA, and UK - Findings from the 2022 International Gaming Study. 8th International Conference on Behavioral Addictions (ICBA 2023), Incheon, South Korea, 23-25 August 2023. Budapest, Hungary: Akademiai Kiado.
2023
Conference Publication
Evidence for harmful gaming as a diagnostic entity
Saunders, John, Chan, Gary, Leung, Janni and Stjepanovic, Daniel (2023). Evidence for harmful gaming as a diagnostic entity. 8th International Conference on Behavioral Addictions (ICBA 2023), Incheon, South Korea, 23 - 25 August 2023. Budapest, Hungary: Akademiai Kiado.
2023
Conference Publication
Negative physical problems and body pain associated with video gaming behaviours - A cross-sectional analysis of the 2022 International Gaming Study
Leung, Janni, Chan, Gary, Gullo, Matthew, Saunders, John, Stjepanovic, Daniel, Tisdale, Calvert, Hides, Leanne and Connor, Jason (2023). Negative physical problems and body pain associated with video gaming behaviours - A cross-sectional analysis of the 2022 International Gaming Study. 8th International Conference on Behavioral Addictions (ICBA 2023), Incheon, South Korea, 23–25 August 2023. Budapest, Hungary: Akademiai Kiado. doi: 10.1556/2006.2023.00800
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.
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
Impacts of Cannabis Use and Cannabis Vaping - Insight into Australian Cannabis Policies
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:
- Disease burden
- Mental health
- Substance abuse
- Substance dependence
- Substance use
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