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Auteur J. VAN OS |
Documents disponibles écrits par cet auteur (13)
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Périodique
H. VERDOUX ; SORBARA F. ; GINDRE C. ; J. D. SWENDSEN ; J. VAN OS | 2003ENGLISH : OBJECTIVE: The aim of the present study was to explore the pattern of associations between cannabis use and dimensions of psychosis in a nonclinical population of female subjects. METHOD: The Community Assessment of Psychic Experienc[...]Article : Périodique
C. HENQUET ; KRABBENDAM L. ; R. DE GRAAF ; M. TEN HAVE ; J. VAN OS |ENGLISH : BACKGROUND: Cannabis use is common in patients with bipolar disorder, however little is known about cannabis as a risk factor for mania. In order to investigate the association between exposure to cannabis and subsequent development [...]Article : Périodique
GRECH A. ; J. VAN OS ; P. B. JONES ; S. W. LEWIS ; R. M. MURRAY |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-[...]Article : Périodique
J. VAN OS ; M. BAK ; HANSSEN M. ; R. V. BIJL ; R. DE GRAAF ; H. VERDOUX |ENGLISH : Cannabis use may increase the risk of psychotic disorders and result in a poor prognosis for those with an established vulnerability to psychosis. A 3-year follow-up (1997-1999) is reported of a general population of 4,045 psychosis-[...]Article : Périodique
M. F. H. GRIFFITH-LENDERING ; J. T. W. WIGMAN ; A. PRINCE VAN LEEUWEN ; S. C. J. HUIJBREGTS ; A. C. HUIZINK ; J. ORMEL ; F. C. VERHULST ; J. VAN OS ; H. SWAAB ; W. A. M. VOLLEBERGH |Aims - To examine the direction of the longitudinal association between vulnerability for psychosis and cannabis use throughout adolescence. Design - Cross-lagged path analysis was used to identify the temporal order of vulnerability for psych[...]Article : Périodique
R. KUEPPER ; J. VAN OS ; R. LIEB ; H. U. WITTCHEN ; M. HÖFLER ; C. HENQUET |Objective: To determine whether use of cannabis in adolescence increases the risk for psychotic outcomes by affecting the incidence and persistence of subclinical expression of psychosis in the general population (that is, expression of psychosi[...]Périodique
I. VAN ROSSUM ; M. BOOMSMA ; D. TENBACK ; C. REED ; J. VAN OS ; EMBLEM ADVISORY BOARD | 2009Research suggests that cannabis use affects negatively on onset and outcome of schizophrenia, but less is known about possible effects in mood disorders. Bipolar in- and outpatients (N = 3459) were enrolled in an observational study. The influen[...]Périodique
N. C. STEFANIS ; P. DELESPAUL ; C. HENQUET ; C. BAKOULA ; C. N. STEFANIS ; J. VAN OS | 2004FRANÇAIS : Etude transversale auprès de 3500 jeunes grecs de 19 ans : un premier usage avant l'âge de 16 ans est associé à des effets psychotiques plus sévères, indépendamment de la durée de consommation, mais non associé à la dépression. E[...]Périodique
K. MONSHOUWER ; F. SMIT ; R. DE GRAAF ; J. VAN OS ; W. VOLLEBERGH | 2005Aims: To investigate the hypothesis that changes in cannabis prevalence among Dutch secondary school students (aged 12-17 years) were paralleled by shifts in the age of first cannabis use. Design and participants: Data were derived from five wav[...]Périodique
C. HENQUET ; KRABBENDAM L. ; SPAUWEN J. ; C. KAPLAN ; R. LIEB ; H. U. WITTCHEN ; J. VAN OS | 2005Objective: To investigate the relation between cannabis use and psychotic symptoms in individuals with above average predisposition for psychosis who first used cannabis during adolescence. Design: Analysis of prospective data from a population [...]Périodique
C. HENQUET ; KRABBENDAM L. ; SPAUWEN J. ; J. VAN OS | 2005ENGLISH : Objective To investigate the relation between cannabis use and psychotic symptoms in individuals with above average predisposition for psychosis who first used cannabis during adolescence. Design Analysis of prospective data from a p[...]Article : Périodique
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 |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[...]Article : Périodique
Cannabis use is associated with poor outcome in existing schizophrenia and may precipitate psychosis in individuals with preexisting liability. To investigate the overall effect size and consistency of the association between cannabis and psycho[...]