Determining factors for Cannabis use among Moroccans Schizophrenic Patients: A cross sectional study
- PMID: 31921611
- PMCID: PMC6941683
Determining factors for Cannabis use among Moroccans Schizophrenic Patients: A cross sectional study
Abstract
Objective: Cannabis use is considered a major clinical problem associated with a poorer outcome in patients with schizophrenia. The objective of the present study was to assess the prevalence of cannabis us among patients with schizophrenia. The assessment consists in comparing some factors related to substance use in a population of schizophrenic patients between cannabis users and non.
Materials and methods: Four hundred and three participants who were examined prospectively during their hospitalization answered the PANNS scale of schizophrenia, GAF, BIS-10, CDSS, and MARS. The consumption of cannabis was investigated using urine toxicological analysis. Sociodemographic, clinical and therapeutic data were also recorded.
Results: The prevalence of cannabis use among schizophrenic inpatients was 49%. Patients with cannabis use were younger (31.7 vs 34.9 years old, p<0.001), more often male (52 vs 20% female, p<0.001), and they presented more often a history of imprisonment (68.8% vs 31.2%, p<0.001). Patients who were users of cannabis had a lower age at onset of the disease than non-users (23.6 vs 24.8 years, p=0.029), and more often with poor medication adherence (p=0.001). Logistic regression revealed that factors associated with cannabis use among schizophrenics were the age, gender, history of imprisonment and poor medication adherence.
Conclusion: The study showed that a high prevalence of cannabis use among patients with schizophrenia which was associated with negative overall outcomes. Determining comorbid substance use disorders among schizophrenic patients is crucial as it may contribute to establish a better therapeutic strategy.
Keywords: Cannabis; Comorbidity; Prevalence; Schizophrenia; Toxicological analysis.
Conflict of interest statement
The authors have declared that there is no conflict of interest.
Similar articles
-
[Cannabis and schizophrenia: demographic and clinical correlates].Encephale. 2003 Jan-Feb;29(1):11-7. Encephale. 2003. PMID: 12640322 French.
-
Cannabis Use and Dependence among French Schizophrenic Inpatients.Front Psychiatry. 2014 Jul 15;5:82. doi: 10.3389/fpsyt.2014.00082. eCollection 2014. Front Psychiatry. 2014. PMID: 25076916 Free PMC article.
-
Are Patients with Schizophrenia Reliably Reporting their Cannabis Use? An African Cross-sectional Study.Cent Nerv Syst Agents Med Chem. 2022;22(3):188-197. doi: 10.2174/1871524922666220620150033. Cent Nerv Syst Agents Med Chem. 2022. PMID: 35726408
-
[Schizophrenia and addiction: An evaluation of the self-medication hypothesis].Encephale. 2003 May-Jun;29(3 Pt 1):193-203. Encephale. 2003. PMID: 12876543 Review. French.
-
Toward a rational pharmacotherapy of comorbid substance abuse in schizophrenic patients.Schizophr Res. 1999 Mar 1;35 Suppl:S35-49. doi: 10.1016/s0920-9964(98)00162-5. Schizophr Res. 1999. PMID: 10190224 Review.
Cited by
-
Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa.S Afr J Psychiatr. 2022 Oct 21;28:1927. doi: 10.4102/sajpsychiatry.v28i0.1927. eCollection 2022. S Afr J Psychiatr. 2022. PMID: 36340643 Free PMC article.
-
Activation of tyrosine phosphatase PTP1B in pyramidal neurons impairs endocannabinoid signaling by tyrosine receptor kinase trkB and causes schizophrenia-like behaviors in mice.Neuropsychopharmacology. 2020 Oct;45(11):1884-1895. doi: 10.1038/s41386-020-0755-3. Epub 2020 Jul 1. Neuropsychopharmacology. 2020. PMID: 32610340 Free PMC article.
-
Changes in cannabis use post decriminalisation in mental health care users in South Africa.S Afr J Psychiatr. 2025 Mar 10;31:2305. doi: 10.4102/sajpsychiatry.v31i0.2305. eCollection 2025. S Afr J Psychiatr. 2025. PMID: 40181911 Free PMC article.
References
-
- American Psychiatric Association. Diagnostic and statistical manual of mental disorders. DSM-IV-TR 2ndéd. Paris: Masson; 2003.
-
- Arndt S, Tyrrell G, Flaum M, Andreasen NC. Comorbidity of substance abuse and schizophrenia: the role of pre-morbid adjustment. Psychol Med. 1992;22:379–388. - PubMed
-
- Bessa MA, Mitsuhiro SS, Chalem E, Barros MM, Guinsburg R, Laranjeira R. Underreporting of use of cocaine and marijuana during the third trimester of gestation among pregnant adolescents. Addict Behav. 2010;35:266–269. - PubMed
-
- Cantor-Graae E, Nordstrom LG, McNeil TF. Substance abuse in schizophrenia: a review of the literature and a study of correlates in Sweden. Schizophr Res. 2001;48:69–82. - PubMed
LinkOut - more resources
Full Text Sources
Miscellaneous