Auteur R. M. MURRAY

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Balancing risks and benefits of cannabis use: Umbrella review of meta-analyses of randomised controlled trials and observational studies

M. SOLMI ; M. DE TOFFOL ; J. Y. KIM ; M. J. CHOI ; B. STUBBS ; T. THOMPSON ; J. FIRTH ; A. MIOLA ; G. CROATTO ; F. BAGGIO ; S. MICHELON ; L. BALLAN ; B. GERDLE ; F. MONACO ; P. SIMONATO ; P. SCOCCO ; V. RICCA ; G. CASTELLINI ; M. FORNARO ; A. MURRU ; E. VIETA ; P. FUSAR-POLI ; C. BARBUI ; J. P. A. IOANNIDIS ; A. F. CARVALHO ; J. RADUA ; C. U. CORRELL ; S. CORTESE ; R. M. MURRAY ; D. CASTLE ; J. I. SHIN ; E. DRAGIOTI | 2023
Dans British Medical Journal (Vol.382, n°8396, 2 September 2023) Article : Périodique

Objective: To systematically assess credibility and certainty of associations between cannabis, cannabinoids, and cannabis based medicines and human health, from observational studies and randomised controlled trials (RCTs). Design: Umbrella re[...]

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Cannabis use and outcome of recent onset psychosis

GRECH A. ; J. VAN OS ; P. B. JONES ; S. W. LEWIS ; R. M. MURRAY | 2005
Dans European Psychiatry (Vol.20, n°4, June 2005) Article : Périodique

PURPOSE: To test the hypothesis that recent onset psychotic patients who use cannabis will have psychotic symptoms that are more severe and more persistent than those who do not use cannabis. SUBJECTS AND METHODS: We carried out a 4-year follow-[...]

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Causal association between cannabis and psychosis: examination of the evidence

L. ARSENEAULT ; M. CANNON ; J. WITTON ; R. M. MURRAY | 2004
Dans British Journal of Psychiatry (Vol.184, n°2, February 2004) Article : Périodique

BACKGROUND: Controversy remains as to whether cannabis acts as a causal risk factor for schizophrenia or other functional psychotic illnesses. AIMS: To examine critically the evidence that cannabis causes psychosis using established criteria o[...]

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Meta-analysis of the association between the level of cannabis use and risk of psychosis

A. MARCONI ; M. DI FORTI ; C. M. LEWIS ; R. M. MURRAY ; E. VASSOS | 2016
Dans Schizophrenia Bulletin (Vol.42, n°5, September 2016) Article : Périodique

ENGLISH: Cannabis use has been reported to induce long-lasting psychotic disorders and a dose-response relationship has been observed. We performed a systematic review of studies that investigate the association between the degree of cannabis c[...]

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Proportion of patients in south London with first-episode psychosis attributable to use of high potency cannabis: a case-control study

M. DI FORTI ; A. MARCONI ; E. CARRA ; S. FRAIETTA ; A. TROTTA ; M. BONOMO ; F. BIANCONI ; P. GARDNER-SOOD ; J. O'CONNOR ; M. RUSSO ; S. A. STILO ; T. R. MARQUES ; V. MONDELLI ; P. DAZZAN ; C. PARIANTE ; A. S. DAVID ; F. GAUGHRAN ; Z. ATAKAN ; C. IYEGBE ; J. POWELL ; C. MORGAN ; M. LYNSKEY ; R. M. MURRAY | 2015
Dans Lancet Psychiatry (The) (Vol.2, n°3, March 2015) Article : Périodique

Background: The risk of individuals having adverse effects from drug use (eg, alcohol) generally depends on the frequency of use and potency of the drug used. We aimed to investigate how frequent use of skunk-like (high-potency) cannabis in sout[...]

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The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study

M. DI FORTI ; D. QUATTRONE ; T. P. FREEMAN ; G. TRIPOLI ; C. GAYER-ANDERSON ; H. QUIGLEY ; V. RODRIGUEZ ; H. E. JONGSMA ; L. FERRARO ; C. LA CASCIA ; D. LA BARBERA ; I. TARRICONE ; D. BERARDI ; A. SZOKE ; C. ARANGO ; A. TORTELLI ; E. VELTHORST ; M. BERNARDO ; C. M. DEL-BEN ; P. R. MENEZES ; J. P. SELTEN ; P. B. JONES ; J. B. KIRKBRIDE ; B. P. F. RUTTEN ; L. DE HAAN ; P. C. SHAM ; J. VAN OS ; C. M. LEWIS ; M. LYNSKEY ; C. MORGAN ; R. M. MURRAY ; EU-GEI WP2 Group | 2019
Dans Lancet Psychiatry (The) (Vol.6, n°5, May 2019) Article : Périodique

Background: Cannabis use is associated with increased risk of later psychotic disorder but whether it affects incidence of the disorder remains unclear. We aimed to identify patterns of cannabis use with the strongest effect on odds of psychotic[...]

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Traditional marijuana, high-potency cannabis and synthetic cannabinoids: increasing risk for psychosis

R. M. MURRAY ; H. QUIGLEY ; D. QUATTRONE ; A. ENGLUND ; M. DI FORTI | 2016
Dans World Psychiatry (Vol.15, n°3, October 2016) Article : Périodique

Epidemiological evidence demonstrates that cannabis use is associated with an increased risk of psychotic outcomes, and confirms a dose-response relationship between the level of use and the risk of later psychosis. High-potency cannabis and syn[...]

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