Zentrum für interdisziplinäre Suchtforschung
der Universität Hamburg

Dr. Jakob Manthey

project scientist, Head of Working Group "Public health and substance use"

Zentrum für Interdisziplinäre Suchtforschung (ZIS) der Universität Hamburg
c/o UKE, Klinik und Poliklinik für Psychiatrie und Psychotherapie
Martinistr. 52
20246 Hamburg

Tel.: +49 (0) 40 7410 - 59438

eMail: j.manthey@uke.de

ResearchGate

Employees overview

since 2020

Visiting scientist: University of Leipzig, Germany

2020

PhD: TU Dresden, Germany

since 2019

Project Scientist: Center for Interdisciplinary Addiction Research (ZIS), UKE Hamburg, Germany

2018

Scientific consultant: WHO European Office for the prevention and control of Non-communicable Diseases, Moscow, Russia

2017 –  2021

Research associate at the Institute of Clinical Psychology and Psychotherapy, TU Dresden, Germany

2013 – 2017

Self-employed research activities: TU Dresden (Germany), Centre for Addiction and Mental Health (Canada)

2007 – 2013

Psychology course: TU Dresden, Germany (degree: equivalent to a Master of Science)

  • Epidemiology of alcohol and cannabis use
  • Health and social consequences of alcohol and cannabis use
  • Evaluation of measures to reduce adverse consequences of alcohol and cannabis use
  • Improving health care services for people with problems due to alcohol- or cannabis use

  • Schranz A, Kilian C, Manthey J, Schäfer I, Schulte B, Kraus L. (2026) Prädiktoren irregulärer Beendigungen alkoholspezifischer Suchtbehandlungen. Suchttherapie 2026; (EFirst). DOI: 10.1055/a-2739-4896
  • Kotz D, Manthey J, Klosterhalfen S, Steinhoff P, Viechtbauer W. (2026) Cannabis use prevalence before and early after partial legalisation in Germany. International Journal of Drug Policy. 2026;157:105501. DOI: 10.1016/j.drugpo.2026.105501
  • Freeman TP, Thorne RL, Wadsworth E, Carney T, Castillo-Carniglia A, Cerdá M, … Manthey J et al. (2026) International cannabis policies and their association with cannabis use, cannabis use disorder, and other psychiatric disorders. The Lancet Psychiatry. 2026;13(7):615-26. DOI: 10.1016/S2215-0366(26)00087-8
  • Correia D, Manthey J, Månsson A, Allebeck P, Kraus L, Rehm J. Full (2026) alcohol marketing ban and adolescent drinking patterns: a repeated cross-sectional analysis comparing Lithuania with other EU countries. BMJ Public Health. 2026;4(2):e004245. DOI: 10.1136/bmjph-2025-004245
  • Kilian C, Schulte B, Schranz A, Schäfer I, Manthey J. (2026) Re-Hospitalisation of Alcohol Use Disorder Patients with and without Qualified Withdrawal and Rehabilitation Treatment: A Data-Linkage Study in Hamburg, Germany. SUCHT. 2026;72(1):12–22. DOI: 10.1024/0939-5911/a000962
  • Manthey J, Radas S, Kraus L. (2026) Increase in Cannabis-Specific Hospital Admissions After Partial Legalization in Germany: A Nationwide Time-Series Analysis. Deutsches Arzteblatt international. 2026;123(15). DOI: 10.3238/arztebl.m2026.0123
  • Manthey J, Kilian C, Kraus L, Schranz A, Schulte B. (2026) Interrupted Time Series Analysis of Alcohol Use Disorder Treatment Utilisation During the Coronavirus Pandemic in Hamburg, Germany. Drug Alcohol Rev. 2026;45(1):e70107. DOI: 10.1111/dar.70107
  • Manthey J, Giesmann M, Verthein U, Kilian C. (2026) Supply and demand of medical cannabis in Germany after legalisation: exploring 12 months of data from an online dispensary. International Journal of Drug Policy. 2026;155:105417. DOI: 10.1016/j.drugpo.2026.105417
  • Schranz, A., Knoche-Becker, A., Rosenkranz, M., Verthein, U., & Manthey, J. (2026). Short-term effects of cannabis legalisation in Germany on driving under the influence of cannabis: a difference-in-differences analysis using Austria as a control. The Lancet Regional Health – Europe, 63. https://doi.org/10.1016/j.lanepe.2026.101593
  • Rosenkranz, M., Knoche-Becker, A., Schranz, A., Verthein, U., & Manthey, J. (2026). Nach der Teillegalisierung von Cannabis in Deutschland: Verändert sich die Risikoeinschätzung für das Fahren unter Cannabiseinfluss? Blutalkohol. Alcohol, Drugs, Behavior and Traffic Safety., 63 (No. 1), 163-183.
  • Rehm J, Correia D, Hassan AS, Manthey J, Rovira P, Shield KD, et al. (2025) Alcohol Excise Taxation, Tax Share and Revenue in the European Union and the United Kingdom in 2022: An Overview and Modelling Analysis. Drug Alcohol Rev. 2025. DOI: 10.1111/dar.70028
  • Pons-Cabrera MT, Caballería E, Navarro-Cortés L, Borràs R, Barrio-Giménez P, Manthey J, et al. (2025) Substance use and psychiatric comorbidities among medical inpatients: associations with length of stay, health-related quality of life, and functioning, with consideration for gender. J Psychiatr Res. 2025. DOI: 10.1016/j.jpsychires.2025.04.006
  • Heinrich F, Manthey J, Wulff B, Stallbaum F, Dost K, Graf W, et al. (2025) Polysubstance Use Among the Homeless In Germany: A Nationwide, Cross-Sectional Multicenter Study. Deutsches Arzteblatt international. 2025;122(22):597-603. DOI: 10.3238/arztebl.m2025.0132
  • Corrigan PW, Spicknall V, Talluri SS, Manthey J, Schomerus G. (2025) Decreasing the self-stigma of substance use disorder through disclosure and recovery narratives. Stigma and Health. 2025. DOI: 10.1037/sah0000666
  • Correia D, Manthey J, Allebeck P, Kraus L, Mansson A, Rehm J. (2025) Assessing the impact of Lithuania's 2018 alcohol marketing ban on adolescent alcohol use by comparing trends with five EU control countries: a study protocol for a secondary data analysis. BMJ Open. 2025;15(3):e094586. DOI: 10.1136/bmjopen-2024-094586
  • Allamani A, Voller F, Bravi S, ... Manthey J, Rehm J. (2025) Alcohol Dependence: one or more nosological entities? Identifying geographical diversities among patients through DSM-4 and Artificial Intelligence. Epidemiol Prev. 2025;49(2-3):208-19. DOI: 10.19191/EP25.2-3.A798.036
  • Kilian C, Stüben N, Schranz A, …, Manthey J. (2025) Das Geschäft mit dem Leid – wie viel Umsatz macht die Alkoholindustrie mit Risiko- und Hochkonsum? SUCHT. 2025. DOI: 10.1024/0939-5911/a000951
  • Kilian C, Liebig M, Manthey J. (2025) Education-based differences in alcohol health literacy in Germany. Drug Alcohol Rev. 2025;44(2):555-62. DOI: 10.1111/dar.13985
  • Manthey J, Gantner A, Neumeier E, Scherbaum N. (2025) Riskanter Cannabiskonsum: Vorschlag einer Arbeitsdefinition. Suchttherapie. 2025;26(02):77-84. DOI: 10.1055/a-2554-7205
  • Schranz, A., Verthein, U., Rosenkranz, M., Knoche-Becker, A., & Manthey, J. (2025). Correlates of driving under the influence of cannabis: A latent class analysis. J Safety Res, 95, 330-337. https://doi.org/10.1016/j.jsr.2025.10.012
  • Manthey, J., Klosterhalfen, S., Kotz, D., Rosenkranz, M., Schranz, A., & Verthein, U. (2025). Legal and Illegal Sources of Cannabis in Germany Shortly After Legalisation. International Journal of Mental Health and Addiction. https://doi.org/10.1007/s11469-025-01574-3
  • Olderbak S, Möckl J, Manthey J, Lee S, Rehm J, Hoch E, Kraus L. (2024) Trends and projection in the proportion of (heavy) cannabis use in Germany from 1995 to 2021. Addiction. 2024 Feb;119(2):311-321. doi: 10.1111/add.16356. Epub 2023 Oct 10. PMID: 37816631.
  • Kilian C, Klinger S, Manthey J, Rehm J, Huckle T, Probst C. (2024) National and regional prevalence of interpersonal violence from others' alcohol use: a systematic review and modelling study. Lancet Reg Health Eur. 2024 Apr 17;40:100905. doi: 10.1016/j.lanepe.2024.100905. PMID: 38680248; PMCID: PMC11047785.
  • Kraus L, Möckl J, Manthey J, Rovira P, Olderbak S, Rehm J. (2024) Trends in alcohol-attributable morbidity and mortality in Germany from 2000 to 2021: A modelling study. Drug Alcohol Rev. 2024 Nov;43(7):1662-1675. doi: 10.1111/dar.13928. Epub 2024 Aug 28. PMID: 39205426
  • Manthey J, Jacobsen B, Kilian C, Kraus L, Reimer J, Schäfer I, Schulte B. (2024) Alcohol-Specific Inpatient Diagnoses in Germany: A Retrospective Cross-Sectional Analysis of Primary and Secondary Diagnoses from 2012 to 2021. Addiction; 2024:1–7. https://doi.org/10.1111/add.16625.
  • Correia D, Manthey J, Neufeld M, Ferreira-Borges C, Olsen A, Shield K, Rehm J. (2024) Classifying national drinking patterns in Europe between 2000 and 2019: A clustering approach using comparable exposure data. Addiction: 2024; 1-11. doi.org/10.1111/add.16567.
  • Manthey J. (2024) Bewertung des Cannabisgesetzes aus einer Public Health Perspektive. Sozialpsychiatrische Informationen 2024; (2): 11-5.
  • Manthey J, Jacobsen B, Schulte B, Rehm J (2024) Rescheduling alcohol marketing bans within the World Health Organization menu of policy options. Addiction; 2024 Jun;119(6):1141-1142. doi: 10.1111/add.16476.
  • Hall W, Manthey J, Stjepanović D. (2024) Cannabis use and cannabis use disorders and their treatment in the Europe. Eur Arch Psychiatry Clin Neurosci (2024). https://doi.org/10.1007/s00406-024-01776-1
  • Manthey J. (2024) Treatment demand for cannabis use problems: analyses of routine data from 30 European countries. Eur Arch Psychiatry Clin Neurosci (2024). https://doi.org/10.1007/s00406-024-01840-w
  • Schranz A, Verthein U, Manthey J. (2024) Road safety implications of the partial legalisation of cannabis in Germany: protocol for a quasi-experimental studyBMJ Open. 2024;14:e084611. doi: 10.1136/bmjopen-2024-084611
  • Möckl J, Manthey J, Murawski M, Lindemann C, Schulte B, Reimer J, Pogarell O, Kraus L. (2024) Clustering care pathways of people with alcohol dependence using a data linkage of routine data in Bremen, Germany. BMC Med 22, 219 (2024). https://doi.org/10.1186/s12916-024-03438-4
  • Kilian C, Manthey J, Probst C. (2024) Quantifying alcohol’s harm to others: a research and policy proposal. Bulletin of the World Health Organization. Bull World Health Organ; 2024, Jun 1;102(6):448-452. doi: 10.2471/BLT.24.291338.
  • Manthey J, Rehm J, Verthein U. (2024) Germany's cannabis act: a catalyst for European drug policy reform? The Lancet Regional Health - Europe 2024;42: 100929. https://doi.org/10.1016/j.lanepe.2024.100929
  • Connor JP, Manthey J, Hall W et al. (2024) Effectiveness of cannabis use and cannabis use disorder interventions: a European and international data synthesis. Eur Arch Psychiatry Clin Neurosci . https://doi.org/10.1007/s00406-024-01829-5
  • Kilian C, Klinger S, Manthey J, Rehm J, Huckle T, Probsta C. (2024) National and regional prevalence of interpersonal violence from others’ alcohol use: a systematic review and modelling study. Lancet Reg Health Eur 2024;40: 100905. https://doi.org/10.1016/j.lanepe.2024.100905
  • Olderbak S, Möckl J, Manthey J, Lee S, Rehm J, Hoch E, Kraus L (2023) Trends and projection in the proportion of (heavy) cannabisuse in Germany from 1995 to 2021. Addiction. 2023;1–11
  • Manthey J, Klinger S, Carr S, Kilian C, Kraus L et al. (2021) Alkohol und COVID-19: ein Update aus 2021. In: akzept e.V. Bundesverband für akzeptierende Drogenarbeit und humane Drogenpolitik, Hrsg. 8. Alternativer Drogen- und Suchtbericht 2021. Lengerich: Pabst Science Publishers, 2021
  • Manthey J, Kilian C, Carr S, Rehm J. (2021) Besteuerung von Alkohol in Deutschland. In: akzept e.V. Bundesverband für akzeptierende Drogenarbeit und humane Drogenpolitik, Hrsg. 8. Alternativer Drogen- und Suchtbericht 2021. Lengerich: Pabst Science Publishers, 2021
  • Kilian C, Manthey J, Lindemann C. (2021) Folgen des leichten bis moderaten Alkoholkonsums in Deutschland. In: akzept e.V. Bundesverband für akzeptierende Drogenarbeit und humane Drogenpolitik, Hrsg. 8. Alternativer Drogen- und Suchtbericht 2021. Lengerich: Pabst Science Publishers, 2021.
  • Rehm J, Kilian C, Manthey J. (2021) Future of surveys in the alcohol field. Drug and alcohol review; 2021. doi: 10.1111/dar.13180
  • Barrio P, Baldaquí N, Andreu M, Kilian C, Rehm J, Gual A, Manthey J (2021) Abstinence Among Alcohol Use Disorder Patients During the COVID-19 Pandemic: Insights From Spain. Alcohol Clin Exp Res.45:802-807. doi: 10.1111/acer.14555
  • Manthey J, Kilian C, Rehm J. (2020) Das Jahr 2020 – ein Meilenstein in der deutschen Alkoholpolitik? In: Kamphausen G, Werse B, Stöver H, Hrsg. 7. Alternativer Drogen- und Suchtbericht 2020. Berlin: akzept e.V., Deutsche AIDS-Hilfe, 2020
  • Kilian C, Manthey J, Rehm J. (2020) Gender differences and the role of social inequality in alcohol’s harm to others in Europe. Journal of studies on alcohol and drugs, 2020. doi: 10.15288/jsad.2020.81.762
  • Kilian C, Manthey J, Moskalewicz J, Scafato E & Rehm J. (2020) Comparing subjective intoxication with risky single-occasion drinking in a European sample. Plos one, 2020. doi: 10.1371/journal.pone.0241433