By Dr Janni Leung

Book Chapters

Leung J; Hall W; Degenhardt L, 2020, 'Adolescent cannabis use disorders', in Adolescent Addiction Epidemiology Assessment and Treatment, pp. 111 - 135, http://dx.doi.org/10.1016/B978-0-12-818626-8.00004-9

Ferrari AJ; Erskine HE; Charlson FJ; Santomauro DF; Leung J; Whiteford HA, 2018, 'The global burden of mental and substance use disorders', in Bhugra D; Bhui K; Wong SYS; Gilman SE (ed.), Oxford Textbook of Public Mental Health, Oxford University Press, pp. 35 - 44, http://dx.doi.org/10.1093/med/9780198792994.003.0004

Journal articles

Leung J; Johnson B; Saunders JB; Stjepanovic D; Patel VY; McClure-Thomas C; Connor JP; Chan GCK, 2026, 'Game related over-spending across age groups and its association with gaming disorder', ADDICTIVE BEHAVIORS, 172, http://dx.doi.org/10.1016/j.addbeh.2025.108490

Wilson J; Langcake A; Bryant Z; Freeman TP; Leung J; Chan GCK; Englund A; Graham M; Stockings E, 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, http://dx.doi.org/10.1186/s13643-024-02657-3

Chung J; Lim CCW; Leung J; Stjepanović D; Chiu V; Hides L; Connor JP; Hall W; Chan GCK, 2025, 'Cannabis Vaping in Youth: A Systematic Review and Meta-Analysis of Risk Factors in Adolescents and Young Adults.', J Stud Alcohol Drugs, http://dx.doi.org/10.15288/jsad.24-00464

Tisdale C; Leung J; de Andrade D; Hides L, 2025, '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, pp. 2621 - 2649, http://dx.doi.org/10.1007/s11469-024-01248-6

Gardner LA; Newton NC; Rowe AL; O'Dean S; Teesson M; Hides L; McBride N; Sunderland M; Freeman B; Egan L; Hawkins A; Ellem R; Catakovic A; Caradmone E; Alcorn C; Blackburn K; East J; Thornton L; Stapinski L; Birrell L; Lee YY; Mihalopoulos C; Leung J; McRobbie H; Lee N; Allsop S; Champion KE; Stockings E, 2025, 'The OurFutures Vaping eHealth intervention to prevent e-cigarette use among adolescent students in Australia: a cluster randomised controlled trial', Lancet Public Health, 10, pp. e682 - e692, http://dx.doi.org/10.1016/S2468-2667(25)00145-8

Leung J; Ellem R; Glasgow S; Rowe AL; Gardner L; Davidson L; Campbell G; Pocuca N; Tisdale C; Chan G; Hides L, 2025, '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, pp. 3105 - 3121, http://dx.doi.org/10.1007/s11469-024-01281-5

Leung J; Sun T; Stjepanovic D; Vu G; Yimer T; Connor JP; Hall W; Chan GCK, 2025, 'Generative Artificial Intelligence With Youth Codesign to Create Vaping Awareness Advertisements', JAMA Network Open, 8, pp. e2514040, http://dx.doi.org/10.1001/jamanetworkopen.2025.14040

Dawson D; Chan G; Stjepanović D; Lorenzetti V; Hall WD; Leung J, 2025, 'The prevalence and correlates of self-reported cannabis use for medicinal, dual and recreational motives in Australia: Findings from the National Drug Strategy Household Survey 2022/2023', Drug and Alcohol Review, 44, pp. 1351 - 1364, http://dx.doi.org/10.1111/dar.14062

Vu GT; Sun T; Hall W; Connor JP; Thai P; Gartner C; Leung J; Chan G, 2025, 'Trends in Social Norms Toward Cigarette Smoking and E-cigarette Use Among US Youth Between 2015 and 2021', NICOTINE & TOBACCO RESEARCH, http://dx.doi.org/10.1093/ntr/ntaf120

Johnson B; Sun T; Wu L; Seal S; Stjepanovic D; Chan G; Leung J, 2025, 'Content Analysis of the Portrayal of Prescription Stimulants on TikTok', Journal of Attention Disorders, 29, pp. 617 - 627, http://dx.doi.org/10.1177/10870547251318834

Belete H; Mekonen T; Connor JP; Chan G; Hides L; Leung J, 2025, 'Tobacco smoking in Sub-Saharan Africa: A systematic review and meta-analysis', Drug and Alcohol Review, 44, pp. 1079 - 1091, http://dx.doi.org/10.1111/dar.14040

Leung J; Tisdale C; Choi J; Ellem R; Davidson L; Chan GCK; White MJ; Kavanagh DJ; Quinn C; Hides L, 2025, '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, 23, pp. 236 - 250, http://dx.doi.org/10.1007/s11469-023-01099-7

Dawson D; Stjepanovic D; Lorenzetti V; Cheung C; Hall W; Leung J, 2025, 'The Prevalence of Cannabis Use Disorders in People who Use Medicinal cannabis: A Systematic Review and Meta-Analysis', DRUG AND ALCOHOL DEPENDENCE, 267, http://dx.doi.org/10.1016/j.drugalcdep.2024.111464

Tisdale C; Leung J; de Andrade D; Hides L, 2025, 'What Client Demographic, Substance Use, Mental Health, Treatment, and Psychological Variables Predict Residential Treatment Completion for Substance Use Disorders?', International Journal of Mental Health and Addiction, 23, pp. 49 - 69, http://dx.doi.org/10.1007/s11469-022-01002-w

Johnson B; Stjepanovic D; Leung J; Chan GCK, 2025, '“Everything’s a Challenge”: An Interview Study of ADHD Individuals in the Midst of the Prescription Stimulant Shortage', Journal of Attention Disorders, 29, pp. 120 - 127, http://dx.doi.org/10.1177/10870547241288351

Sun T; Chan GCK; Stjepanović D; Yimer T; Vu GT; Lim C; McClure-Thomas C; Russel C; Connor J; Hall W; Hides L; Hammond D; Dietrich T; Erku D; Johnson B; Leung J, 2025, 'Co-Designing AI-Generated Vaping Awareness Materials With Adolescents and Young Adults: A Qualitative Study', Drug and Alcohol Review, http://dx.doi.org/10.1111/dar.70022

Sun T; Chan G; Gravely S; Quah ACK; Meng G; Fong GT; Xu SS; Katanoda K; Seo HG; Tabuchi T; Yoshimi I; Kang CB; Vu G; Cho A; Lim C; Togawa K; Lim S; Lee S; Cho SI; Kim GY; Leung J, 2025, 'Knowledge and Concerns About Smoking-Related Health Risks: A Cross-Sectional Analysis of the 2021 International Tobacco Control Japan and Korea Surveys', Drug and Alcohol Review, http://dx.doi.org/10.1111/dar.70043

Dawson D; Stjepanović D; McClure-Thomas C; Lorenzetti V; Hall W; Sun T; Leung J, 2025, 'Motivations and Pathways: A Thematic Analysis of Interviews with Medicinal Cannabis Consumers in Australia', Substance Use and Misuse, http://dx.doi.org/10.1080/10826084.2025.2560074

Yimer TM; Chan GCK; Stjepanović D; Sun T; Shin D; Lucey M; Choi J; Saunders JB; Connor JP; Leung J, 2025, 'The Short-Term Health Effects of Dealcoholised Red Wine: A Systematic Review and Meta-Analysis', Drug and Alcohol Review, http://dx.doi.org/10.1111/dar.70047

Chan GCK; He E; Leung J; Verspoor K, 2025, 'A comprehensive systematic review dataset is a rich resource for training and evaluation of AI systems for title and abstract screening', RESEARCH SYNTHESIS METHODS, 16, pp. 308 - 322, http://dx.doi.org/10.1017/rsm.2025.1

Davidson L; Leung J; Quinn C; Ellem R; Tisdale C; Choi J; Carlyle M; White M; Kavanagh DJ; Hides L, 2024, 'Adolescent alcohol drinking and cannabis use: Longitudinal and cohort analysis of high school students in Australia', International Journal of Alcohol and Drug Research, 12, pp. 77 - 84, http://dx.doi.org/10.7895/ijadr.499

Lim CCW; Rutherford B; Gartner C; McClure-Thomas C; Foo S; Su FY; Scheurer R; Sebayang S; Chan G; Stjepanović D; Fausiah F; Farassania G; Leung J, 2024, 'A systematic review of second-hand smoking mass media campaigns (2002–2022)', BMC Public Health, 24, http://dx.doi.org/10.1186/s12889-024-18222-5

Gardner LA; O’Dean S; Rowe AL; Hawkins A; Egan L; Stockings E; Teesson M; Hides L; Catakovic A; Ellem R; McBride N; Allsop S; Blackburn K; Stapinski L; Freeman B; Leung J; Thornton L; Birrell L; Champion KE; Newton NC, 2024, 'Research Letter: E-cigarette use and mental health during early adolescence: An Australian survey among over 5000 young people', Australian and New Zealand Journal of Psychiatry, 58, pp. 1103 - 1106, http://dx.doi.org/10.1177/00048674241267908

Yimer TM; McClure-Thomas C; Stjepanovic D; Wilson J; Chan GCK; Hall WD; Leung J, 2024, 'The relationship between cannabis and nicotine use: A systematic review and meta-analysis', Addiction, 119, pp. 2076 - 2087, http://dx.doi.org/10.1111/add.16642

Lim CCW; Sun T; Vu G; Chan GCK; Leung J, 2024, 'The underbelly of E-cigarette advertising: regulating online markets on social media platforms', Harm Reduction Journal, 21, http://dx.doi.org/10.1186/s12954-024-01027-5

Vu GT; Stjepanović D; Sun T; Leung J; Chung J; Connor J; Thai PK; Gartner CE; Tran BX; Hall WD; Chan G, 2024, 'Predicting the long-term effects of electronic cigarette use on population health: a systematic review of modelling studies', Tobacco Control, 33, pp. 790 - 797, http://dx.doi.org/10.1136/tc-2022-057748

Chan GCK; Saunders JB; Stjepanović D; Mcclure-Thomas C; Connor J; Hides L; Wood A; King D; Siste K; Long J; Leung JK, 2024, 'The Gaming Disorder Identification Test (GADIT) - A screening tool for Gaming Disorder based on ICD-11', Journal of Behavioral Addictions, 13, pp. 729 - 741, http://dx.doi.org/10.1556/2006.2024.00038

de Andrade D; Davidson L; Robertson C; Williams P; Leung J; Walter Z; Allan J; Hides L, 2024, 'Randomized effectiveness-implementation trial of dialectical behavior therapy interventions for young people with borderline personality disorder symptoms', Journal of Clinical Psychology, 80, pp. 2117 - 2133, http://dx.doi.org/10.1002/jclp.23725

Belete H; Yimer TM; Dawson D; Espinosa DC; Ambaw F; Connor JP; Chan G; Hides L; Leung J, 2024, 'Alcohol use and alcohol use disorders in sub-Saharan Africa: A systematic review and meta-analysis', Addiction, 119, pp. 1527 - 1540, http://dx.doi.org/10.1111/add.16514

Tisdale C; de Andrade D; Leung J; Campbell G; Hides L, 2024, 'The risk of repeated suicidal presentations following residential treatment for substance use disorders: A recurrent event analysis using linked administrative data', Journal of Affective Disorders, 360, pp. 364 - 375, http://dx.doi.org/10.1016/j.jad.2024.05.129

Rutherford BN; Leung J; Stjepanović D; Chan GCK, 2024, 'Through the looking glass: An alcohol advertisement every 3 minutes', Drug and Alcohol Review, 43, pp. 1426 - 1434, http://dx.doi.org/10.1111/dar.13886

Leung J; Sun T; Vu G; Dawson D; Chan GCK, 2024, 'Promotions of vaping products near schools and central business district: A descriptive cross-sectional study', Health Promotion Journal of Australia, 35, pp. 835 - 839, http://dx.doi.org/10.1002/hpja.791

Saunders JB; Chan G; Leung J; Stjepanović D; Connor JP, 2024, 'The nature and characteristics of problem gaming, with a focus on ICD-11 diagnoses', Current Opinion in Psychiatry, 37, pp. 292 - 300, http://dx.doi.org/10.1097/YCO.0000000000000949

Chan GCK; Sun T; Stjepanović D; Vu G; Hall WD; Connor JP; Leung J, 2024, 'Designing observational studies for credible causal inference in addiction research—Directed acyclic graphs, modified disjunctive cause criterion and target trial emulation', Addiction, 119, pp. 1125 - 1134, http://dx.doi.org/10.1111/add.16442

Leung J; Saunders JB; Stjepanović D; Tisdale C; McClure-Thomas C; Connor J; Gullo M; Wood AP; Kai Chan GC, 2024, 'Extended hours of video game play and negative physical symptoms and pain', Computers in Human Behavior, 155, http://dx.doi.org/10.1016/j.chb.2024.108181

Webb P; Ireland J; Colledge-Frisby S; Peacock A; Leung J; Vickerman P; Farrell M; Hickman M; Grebely J; Degenhardt L, 2024, 'Patterns of drug use among people who inject drugs: A global systematic review and meta-analysis', International Journal of Drug Policy, 128, http://dx.doi.org/10.1016/j.drugpo.2024.104455

Leung J; Lim C; Belete H; Mcclure-Thomas C; Foo S; Chan GCK, 2024, 'Regional and Country Prevalence Estimates of Unsafe Sex Among Adolescents in 68 Low-Income and Middle-Income Countries', Archives of Sexual Behavior, 53, pp. 2337 - 2346, http://dx.doi.org/10.1007/s10508-024-02861-1

Brauer M; Roth GA; Aravkin AY; Zheng P; Abate KH; Abate YH; Abbafati C; Abbasgholizadeh R; Abbasi MA; Abbasian M; Abbasifard M; Abbasi-Kangevari M; Abd ElHafeez S; Abd-Elsalam S; Abdi P; Abdollahi M; Abdoun M; Abdulah DM; Abdullahi A; Abebe M; Abedi A; Abedi A; Abegaz TM; Zuñiga RAA; Abiodun O; Abiso TL; Aboagye RG; Abolhassani H; Abouzid M; Aboye GB; Abreu LG; Abualruz H; Abubakar B; Abu-Gharbieh E; Abukhadijah HJJ; Aburuz S; Abu-Zaid A; Adane MM; Addo IY; Addolorato G; Adedoyin RA; Adekanmbi V; Aden B; Adetunji JB; Adeyeoluwa TE; Adha R; Adibi A; Adnani QES; Adzigbli LA; Afolabi AA; Afolabi RF; Afshin A; Afyouni S; Afzal MS; Afzal S; Agampodi SB; Agbozo F; Aghamiri S; Agodi A; Agrawal A; Agyemang-Duah W; Ahinkorah BO; Ahmad A; Ahmad D; Ahmad F; Ahmad N; Ahmad S; Ahmad T; Ahmed A; Ahmed A; Ahmed A; Ahmed LA; Ahmed MB; Ahmed S; Ahmed SA; Ajami M; Akalu GT; Akara EM; Akbarialiabad H; Akhlaghi S; Akinosoglou K; Akinyemiju T; Akkaif MA; Akkala S; Akombi-Inyang B; Al Awaidy S; Al Hasan SM; Alahdab F; AL-Ahdal TMA; Alalalmeh SO; Alalwan TA; Al-Aly Z; Alam K; Alam N; Alanezi FM; Alanzi TM; Albakri A; AlBataineh MT; Aldhaleei WA; Aldridge RW; Maulik PK; Godinho M; Biswas RK; Resnikoff S; Sachdev P; Mitchell P; Dai-Keller Z; Huda MN; Sundstorm J; Boufous S; Feng X; Xu L; Peprah P; Degenhardt L; Schutte A; Pesudovs K; Peden A; Okeke S; Si Y; Leung J; Arnlov J, 2024, 'Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021', Lancet, 403, pp. 2162 - 2203, http://dx.doi.org/10.1016/S0140-6736(24)00933-4

Ferrari AJ; Santomauro DF; Aali A; Abate YH; Abbafati C; Abbastabar H; ElHafeez SA; Abdelmasseh M; Abd-Elsalam S; Abdollahi A; Abdullahi A; Abegaz KH; Zuñiga RAA; Aboagye RG; Abolhassani H; Abreu LG; Abualruz H; Abu-Gharbieh E; Abu-Rmeileh NME; Ackerman IN; Addo IY; Addolorato G; Adebiyi AO; Adepoju AV; Adewuyi HO; Afyouni S; Afzal S; Afzal S; Agodi A; Ahmad A; Ahmad D; Ahmad F; Ahmad S; Ahmed A; Ahmed LA; Ahmed MB; Ajami M; Akinosoglou K; Akkaif MA; Al Hasan SM; Alalalmeh SO; Al-Aly Z; Albashtawy M; Aldridge RW; Alemu MD; Alemu YM; Alene KA; Al-Gheethi AAS; Alharrasi M; Alhassan RK; Ali MU; Ali R; Ali SSS; Alif SM; Aljunid SM; Al-Marwani S; Almazan JU; Alomari MA; Al-Omari B; Altaany Z; Alvis-Guzman N; Alvis-Zakzuk NJ; Alwafi H; Al-Wardat MS; Al-Worafi YM; Aly S; Alzoubi KH; Amare AT; Amegbor PM; Ameyaw EK; Amin TT; Amindarolzarbi A; Amiri S; Amugsi DA; Ancuceanu R; Anderlini D; Anderson DB; Andrade PP; Andrei CL; Ansari H; Antony CM; Anwar S; Anwar SL; Anwer R; Anyanwu PE; Arab JP; Arabloo J; Arafat M; Araki DT; Aravkin AY; Arkew M; Armocida B; Arndt MB; Arooj M; Artamonov AA; Aruleba RT; Arumugam A; Ashbaugh C; Ashemo MY; Ashraf M; Onie S; Godinho M; Okeke S; Dai-Keller Z; Sharma S; Sundstorm J; Xu L; Peprah P; Degenhardt L; Pesudovs K; Peden A; Hunter J; Sachdev P; Mitchell P; Feng X; Leung J, 2024, 'Global incidence, prevalence, years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries in 204 countries and territories and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021', Lancet, 403, pp. 2133 - 2161, http://dx.doi.org/10.1016/S0140-6736(24)00757-8

Østertun Geirdal AK; Leung J; Price D; Kabelenga I; Lamph G; Thygesen H; Ruffolo MR; Bonsaksen T, 2024, 'Associations Between Demographic Variables, Psychosocial Health, Quality of Life, and Happiness in the Context of COVID-19', Applied Research in Quality of Life, 19, pp. 603 - 617, http://dx.doi.org/10.1007/s11482-023-10255-z

Bonsaksen T; Thygesen H; Leung J; Lamph G; Kabelenga I; Østertun Geirdal A, 2024, 'Patterns of Social Media Use across Age Groups during the COVID-19 Pandemic: A Study across Four Countries', Social Sciences, 13, http://dx.doi.org/10.3390/socsci13040194

Dawson D; Stjepanović D; Lorenzetti V; Cheung C; Hall W; Leung J, 2024, 'The prevalence of cannabis use disorders in people who use medicinal cannabis: A systematic review and meta-analysis', Drug and Alcohol Dependence, 257, http://dx.doi.org/10.1016/j.drugalcdep.2024.111263

Price D; Bonsaksen T; Leung J; Ruffolo M; Lamph G; Hawkins K; Østertun Geirdal A, 2024, 'The Psychosocial Health of Black/African Americans Compared with People of Other Races/Ethnic Origins during the COVID-19 Pandemic', Covid, 4, pp. 506 - 517, http://dx.doi.org/10.3390/covid4040034

Leung J; Yimer TM; Chiu V; Hall WD; Connor JP; Chan GCK, 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, pp. 688 - 693, http://dx.doi.org/10.1111/dar.13792

Dawson D; Stjepanovic D; Lorenzetti V; Hall WD; Leung J, 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, pp. 226 - 232, http://dx.doi.org/10.1111/dar.13747

Leung J; Lim C; Sun T; Vu G; McClure-Thomas C; Bao Y; Tran L; Santo T; Fausiah F; Farassania G; Chan GCK; Sebayang SK, 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, http://dx.doi.org/10.3389/ijph.2024.1606446

Lim CCW; Sun T; Gartner C; Connor J; Fahmi M; Hall W; Hames S; Stjepanović D; Chan G; Leung J, 2024, 'What is the hype on #MedicinalCannabis in the United States? A content analysis of medicinal cannabis tweets', Drug and Alcohol Review, 43, pp. 28 - 35, http://dx.doi.org/10.1111/dar.13618

Ashley DP; Rutherford BN; Lim CCW; Cheng B; Sun T; Vu G; Johnson B; Chung J; Huang S; Leung J; Stjepanović D; Connor JP; Chan GCK, 2024, 'Effect of Tobacco and E-Cigarette-Related Social Media Content on Youth', Journal of the National Medical Association, 116, pp. 420 - 420, http://dx.doi.org/10.1016/j.jnma.2024.07.023

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