0000000000847002

AUTHOR

Arianna Marconi

showing 2 related works from this author

Daily use, especially of high-potency cannabis, drives the earlier onset of psychosis in cannabis users.

2013

UNLABELLED: Cannabis use is associated with an earlier age of onset of psychosis (AOP). However, the reasons for this remain debated. METHODS: We applied a Cox proportional hazards model to 410 first-episode psychosis patients to investigate the association between gender, patterns of cannabis use, and AOP. RESULTS: Patients with a history of cannabis use presented with their first episode of psychosis at a younger age (mean years = 28.2, SD = 8.0; median years = 27.1) than those who never used cannabis (mean years = 31.4, SD = 9.9; median years = 30.0; hazard ratio [HR] = 1.42; 95% CI: 1.16-1.74; P < .001). This association remained significant after controlling for gender (HR = 1.39; 95% …

AdultAffective Disorders PsychoticMaleRiskage of onset cannabis drug use gender high-potency cannabis psychotic disorders survival plotsPsychosisPediatricsmedicine.medical_specialtySex FactorsDelta-9-tetrahydrocannabinolSettore MED/48 -Scienze Infermierist. e Tecn. Neuro-Psichiatriche e Riabilitat.medicineHumansAge of OnsetPsychiatrySettore MED/25 - PsichiatriaCannabisFirst episodebiologyProportional hazards modelHazard ratioRegular Articlemedicine.diseasebiology.organism_classificationPsychiatry and Mental healthPsychotic DisordersSchizophreniaFemaleCannabisAge of onsetPsychologySchizophrenia bulletin
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Differences in cannabis-related experiences between patients with a first episode of psychosis and controls

2016

BackgroundMany studies have reported that cannabis use increases the risk of a first episode of psychosis (FEP). However, only a few studies have investigated the nature of cannabis-related experiences in FEP patients, and none has examined whether these experiences are similar in FEP and general populations. The aim of this study was to explore differences in self-reported cannabis experiences between FEP and non-psychotic populations.MethodA total of 252 subjects, who met International Classification of Diseases (ICD)-10 criteria for FEP, and 217 controls who reported cannabis use were selected from the Genetics and Psychosis (GAP) study. The Medical Research Council Social Schedule and t…

AdultMalePsychosismedicine.medical_specialtyExacerbationPopulationMarijuana SmokingSociodemographic datapsychosiPsychotic Disorder03 medical and health sciencesYoung Adult0302 clinical medicineexperienceSurveys and QuestionnairesmedicineSettore MED/48 -Scienze Infermierist. e Tecn. Neuro-Psichiatriche e Riabilitat.HumansSurveys and QuestionnaireCannabiYoung adulteducationPsychiatrySettore MED/25 - PsichiatriaApplied PsychologyCannabisCannabis; Cannabis Experience Questionnaire; experiences; first episode of psychosis; psychosis; Adult; Cannabis; Female; Humans; Linear Models; Male; Marijuana Smoking; Psychiatric Status Rating Scales; Psychotic Disorders; Surveys and Questionnaires; Young Adult; Applied Psychology; Psychiatry and Mental Healthfirst episode of psychosiFirst episodePsychiatric Status Rating Scaleseducation.field_of_studybiologyCannabis usePsychiatric Status Rating Scalemedicine.diseasebiology.organism_classification030227 psychiatryPsychotic DisordersPsychiatry and Mental HealthCannabis Experience QuestionnaireLinear ModelsLinear ModelFemaleCannabisPsychology030217 neurology & neurosurgeryClinical psychologyHuman
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