
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
2021
Journal Article
Reactions on Twitter towards Australia's proposed import restriction on nicotine vaping products: a thematic analysis
Sun, Tianze, Lim, Carmen C.W., Gartner, Coral, Connor, Jason P., Hall, Wayne D., Leung, Janni, Stjepanović, Daniel and Chan, Gary C.K. (2021). Reactions on Twitter towards Australia's proposed import restriction on nicotine vaping products: a thematic analysis. Australian and New Zealand Journal of Public Health, 45 (6) 1753-6405.13143, 1-3. doi: 10.1111/1753-6405.13143
2021
Journal Article
Treatment trajectories for alcohol use disorder: Where is the gap?
Mekonen, Tesfa, Leung, Janni, Chan, Gary C. K., Hides, Leanne and Connor, Jason P. (2021). Treatment trajectories for alcohol use disorder: Where is the gap?. Alcoholism: Clinical and Experimental Research, 45 (8), 1560-1562. doi: 10.1111/acer.14660
2021
Journal Article
Clinical correlates and outcomes associated with pregabalin use among people prescribed opioids for chronic non-cancer pain: a five-year prospective cohort study
Nielsen, Suzanne, Gisev, Natasa, Leung, Janni, Clare, Philip, Bruno, Raimondo, Lintzeris, Nicholas, Larance, Briony, Blyth, Fiona, Hall, Wayne, Cohen, Milton, Degenhardt, Louisa, Farrell, Michael and Campbell, Gabrielle (2021). Clinical correlates and outcomes associated with pregabalin use among people prescribed opioids for chronic non-cancer pain: a five-year prospective cohort study. British Journal of Clinical Pharmacology, 87 (8), 3092-3104. doi: 10.1111/bcp.14715
2021
Journal Article
Public health impacts to date of the legalisation of medical and recreational cannabis use in the USA
Chiu, Vivian, Leung, Janni, Hall, Wayne, Stjepanović, Daniel and Degenhardt, Louisa (2021). Public health impacts to date of the legalisation of medical and recreational cannabis use in the USA. Neuropharmacology, 193 108610, 108610. doi: 10.1016/j.neuropharm.2021.108610
2021
Journal Article
A systematic review of randomized controlled trials and network meta-analysis of e-cigarettes for smoking cessation
Chan, Gary C. K., Stjepanović, Daniel, Lim, Carmen, Sun, Tianze, Shanmuga Anandan, Aathavan, Connor, Jason P., Gartner, Coral, Hall, Wayne D. and Leung, Janni (2021). A systematic review of randomized controlled trials and network meta-analysis of e-cigarettes for smoking cessation. Addictive Behaviors, 119 106912, 106912. doi: 10.1016/j.addbeh.2021.106912
2021
Journal Article
Cross-national study of worrying, loneliness, and mental health during the COVID-19 pandemic: a comparison between individuals with and without infection in the family
Bonsaksen, Tore, Leung, Janni, Schoultz, Mariyana, Thygesen, Hilde, Price, Daicia, Ruffolo, Mary and Geirdal, Amy Østertun (2021). Cross-national study of worrying, loneliness, and mental health during the COVID-19 pandemic: a comparison between individuals with and without infection in the family. Healthcare, 9 (7) 903, 903. doi: 10.3390/healthcare9070903
2021
Journal Article
Loneliness and its association with social media use during the COVID-19 outbreak
Bonsaksen, Tore, Ruffolo, Mary, Leung, Janni, Price, Daicia, Thygesen, Hilde, Schoultz, Mariyana and Geirdal, Amy Østertun (2021). Loneliness and its association with social media use during the COVID-19 outbreak. Social Media and Society, 7 (3), 1-10. doi: 10.1177/20563051211033821
2021
Journal Article
Mental health, information and being connected: qualitative experiences of social media use during the COVID-19 pandemic from a trans-national sample
Schoultz, Mariyana, Leung, Janni, Bonsaksen, Tore, Ruffolo, Mary, Thygesen, Hilde, Price, Daicia and Geirdal, Amy Østertun (2021). Mental health, information and being connected: qualitative experiences of social media use during the COVID-19 pandemic from a trans-national sample. Healthcare, 9 (6) 735, 735. doi: 10.3390/healthcare9060735
2021
Journal Article
Video-based communication and its association with loneliness, mental health and quality of life among older people during the COVID-19 outbreak
Bonsaksen, Tore, Thygesen, Hilde, Leung, Janni, Ruffolo, Mary, Schoultz, Mariyana, Price, Daicia and Østertun Geirdal, Amy (2021). Video-based communication and its association with loneliness, mental health and quality of life among older people during the COVID-19 outbreak. International Journal of Environmental Research and Public Health, 18 (12) 6284, 6284. doi: 10.3390/ijerph18126284
2021
Journal Article
The significance of demographic variables on psychosocial health from the early stage and nine months after the COVID-19 pandemic outbreak. A cross-national study
Geirdal, Amy K. Østertun, Price, Daicia, Schoultz, Mariyana, Thygesen, Hilde, Ruffolo, Mary, Leung, Janni and Bonsaksen, Tore (2021). The significance of demographic variables on psychosocial health from the early stage and nine months after the COVID-19 pandemic outbreak. A cross-national study. International Journal of Environmental Research and Public Health, 18 (8) 4345, 1-18. doi: 10.3390/ijerph18084345
2021
Journal Article
Brief psychological interventions for reducing prescription opioid use, related harm and pain intensity in patients with chronic pain: a systematic review and assessment of patient interest
Elphinston, Rachel A., Sterling, Michele, Leung, Janni, Gray, Paul D., Requena, Simone Scotti and Connor, Jason P (2021). Brief psychological interventions for reducing prescription opioid use, related harm and pain intensity in patients with chronic pain: a systematic review and assessment of patient interest. The Clinical Journal of Pain, 37 (4), 270-280. doi: 10.1097/AJP.0000000000000908
2021
Journal Article
The new frontier of esports and gaming: a scoping meta-review of health impacts and research agenda
Kelly, Sarah and Leung, Janni (2021). The new frontier of esports and gaming: a scoping meta-review of health impacts and research agenda. Frontiers in Sports and Active Living, 3, 640362. doi: 10.3389/fspor.2021.640362
2021
Journal Article
Loneliness and its associated factors nine months after the COVID-19 outbreak: a cross-national study
Bonsaksen, Tore, Schoultz, Mariyana, Thygesen, Hilde, Ruffolo, Mary, Price, Daicia, Leung, Janni and Geirdal, Amy Østertun (2021). Loneliness and its associated factors nine months after the COVID-19 outbreak: a cross-national study. International Journal of Environmental Research and Public Health, 18 (6) 2841, 1-1. doi: 10.3390/ijerph18062841
2021
Journal Article
Mental health, quality of life, wellbeing, loneliness and use of social media in a time of social distancing during the COVID-19 outbreak. A cross-country comparative study
Geirdal, Amy Østertun, Ruffolo, Mary, Leung, Janni, Thygesen, Hilde, Price, Daicia, Bonsaksen, Tore and Schoultz, Mariyana (2021). Mental health, quality of life, wellbeing, loneliness and use of social media in a time of social distancing during the COVID-19 outbreak. A cross-country comparative study. Journal of Mental Health, 30 (2), 148-155. doi: 10.1080/09638237.2021.1875413
2021
Journal Article
Personal correlates of support for medical and recreational cannabis legalization in Australia
Chiu, Vivian, Chan, Gary, Hall, Wayne, Hides, Leanne, Lim, Carmen and Leung, Janni (2021). Personal correlates of support for medical and recreational cannabis legalization in Australia. Frontiers in Psychiatry, 12 551661, 551661. doi: 10.3389/fpsyt.2021.551661
2021
Journal Article
Do cannabis users reduce their THC dosages when using more potent cannabis products? A review
Leung, Janni, Stjepanović, Daniel, Dawson, Danielle and Hall, Wayne D. (2021). Do cannabis users reduce their THC dosages when using more potent cannabis products? A review. Frontiers in Psychiatry, 12 630602, 1-10. doi: 10.3389/fpsyt.2021.630602
2021
Journal Article
Comorbidity between depressive symptoms and chronic conditions – findings from the Indonesia Family Life Survey
Leung, Janni, Gouda, Hebe, Chung, Jack Yiu Chak and Irmansyah, Irmansyah (2021). Comorbidity between depressive symptoms and chronic conditions – findings from the Indonesia Family Life Survey. Journal of Affective Disorders, 280 (Pt A), 236-240. doi: 10.1016/j.jad.2020.11.007
2021
Journal Article
Effect of income inequality, community infrastructure and individual stressors on adult depression
Fan, Vanessa Sha, Mahadevan, Renuka and Leung, Janni (2021). Effect of income inequality, community infrastructure and individual stressors on adult depression. Health Promotion International, 36 (1), 46-57. doi: 10.1093/heapro/daaa036
2021
Journal Article
Anxiety and panic buying behaviour during COVID-19 pandemic—a qualitative analysis of toilet paper hoarding contents on Twitter
Leung, Janni, Chung, Jack Yiu Chak, Tisdale, Calvert, Chiu, Vivian, Lim, Carmen C. W. and Chan, Gary (2021). Anxiety and panic buying behaviour during COVID-19 pandemic—a qualitative analysis of toilet paper hoarding contents on Twitter. International Journal of Environmental Research and Public Health, 18 (3) 1127, 1-16. doi: 10.3390/ijerph18031127
2021
Conference Publication
Panic buying behavior analysis of COVID-19 related toilet paper hoarding content on Twitter
Chung, Jack Yiu Chak, Leung, Janni, Tisdale, Calvert, Chiu, Vivian, Lim, Carmen C. W. and Chan, Gary (2021). Panic buying behavior analysis of COVID-19 related toilet paper hoarding content on Twitter. 3rd International Electronic Conference on Environmental Research and Public Health, Online, 11-25 January 2021. Basel, Switzerland: MDPI. doi: 10.3390/ecerph-3-09001
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
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
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
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
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
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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
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
Need help?
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