Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa

Background: There is a high prevalence of cannabis use in patients with schizophrenia spectrum and other psychotic disorders, with comorbid cannabis use in this population being associated with poorer long-term outcomes. Aim: To determine the prevalence of cannabis use in patients with a schizophre...

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Main Authors: Khanya Mona, Vuyokazi Ntlantsana, Andrew M. Tomita, Saeeda Paruk
Format: Article
Language:English
Published: AOSIS 2022-10-01
Series:South African Journal of Psychiatry
Subjects:
Online Access:https://sajp.org.za/index.php/sajp/article/view/1927
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author Khanya Mona
Vuyokazi Ntlantsana
Andrew M. Tomita
Saeeda Paruk
author_facet Khanya Mona
Vuyokazi Ntlantsana
Andrew M. Tomita
Saeeda Paruk
author_sort Khanya Mona
collection DOAJ
description Background: There is a high prevalence of cannabis use in patients with schizophrenia spectrum and other psychotic disorders, with comorbid cannabis use in this population being associated with poorer long-term outcomes. Aim: To determine the prevalence of cannabis use in patients with a schizophrenia spectrum and other psychotic disorders. Setting: The study was conducted at a psychiatric hospital in Durban, KwaZulu-Natal Province, South Africa. Methods: A review of clinical records of patients admitted to the hospital for the period, June 2018 to June 2020, was conducted. Results: A total of 370 clinical records were reviewed, of which 48.9% reported current and 51.1% lifetime cannabis use. Being male was significantly associated with current and lifetime cannabis use (OR = 4.90, 95% CI 2.49–9.62 and OR = 6.27, 95% CI 3.28–11.95, respectively). Current alcohol use was also associated with current cannabis use (CCU) (OR = 3.06, 95% CI 1.78–5.28), and age 45 years and older was associated with a lower odds of cannabis use (OR = 0.30, 95% CI 0.09–0.96). Forty-eight per cent of participants were admitted three or more times, and readmission was associated with cannabis use (p = 0.01). There was a lack of association between cannabis use, readmission and human immunodeficiency virus (HIV) status, after controlling for variables such as alcohol use and gender. Conclusion: Almost 50% of people admitted with schizophrenia spectrum and other psychotic disorders have comorbid current and lifetime cannabis use. There is a need for dual diagnosis units to address comorbid substance use in people with psychotic disorders, as it leads to poorer outcomes. Contribution: The study found that there is a high prevalence of cannabis use in people with psychosis. Therefore, it is imperative that we revise treatment programs in our psychiatric units and there is an urgent need for dual diagnosis programs that address substance use in this group of patients.
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spelling doaj.art-a084d1d676ac4c4386ea7109b74df3602022-12-22T03:29:46ZengAOSISSouth African Journal of Psychiatry1608-96852078-67862022-10-01280e1e810.4102/sajpsychiatry.v28i0.1927624Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South AfricaKhanya Mona0Vuyokazi Ntlantsana1Andrew M. Tomita2Saeeda Paruk3Discipline of Psychiatry, School of Clinical Medicine, College of Health Sciences, University of KwaZulu-Natal, DurbanDiscipline of Psychiatry, School of Clinical Medicine, College of Health Sciences, University of KwaZulu-Natal, DurbanDepartment of Psychiatry, KwaZulu Natal Research Innovation and Sequencing Platform (KRISP), College of Health Sciences, University of KwaZulu- Natal, Durban, South Africa; and Discipline of Psychiatry, Centre of Rural Health, School of Nursing and Public Health, College of Health Sciences, University of KwaZulu Natal, DurbanDiscipline of Psychiatry, School of Clinical Medicine, College of Health Sciences, University of KwaZulu-NatalBackground: There is a high prevalence of cannabis use in patients with schizophrenia spectrum and other psychotic disorders, with comorbid cannabis use in this population being associated with poorer long-term outcomes. Aim: To determine the prevalence of cannabis use in patients with a schizophrenia spectrum and other psychotic disorders. Setting: The study was conducted at a psychiatric hospital in Durban, KwaZulu-Natal Province, South Africa. Methods: A review of clinical records of patients admitted to the hospital for the period, June 2018 to June 2020, was conducted. Results: A total of 370 clinical records were reviewed, of which 48.9% reported current and 51.1% lifetime cannabis use. Being male was significantly associated with current and lifetime cannabis use (OR = 4.90, 95% CI 2.49–9.62 and OR = 6.27, 95% CI 3.28–11.95, respectively). Current alcohol use was also associated with current cannabis use (CCU) (OR = 3.06, 95% CI 1.78–5.28), and age 45 years and older was associated with a lower odds of cannabis use (OR = 0.30, 95% CI 0.09–0.96). Forty-eight per cent of participants were admitted three or more times, and readmission was associated with cannabis use (p = 0.01). There was a lack of association between cannabis use, readmission and human immunodeficiency virus (HIV) status, after controlling for variables such as alcohol use and gender. Conclusion: Almost 50% of people admitted with schizophrenia spectrum and other psychotic disorders have comorbid current and lifetime cannabis use. There is a need for dual diagnosis units to address comorbid substance use in people with psychotic disorders, as it leads to poorer outcomes. Contribution: The study found that there is a high prevalence of cannabis use in people with psychosis. Therefore, it is imperative that we revise treatment programs in our psychiatric units and there is an urgent need for dual diagnosis programs that address substance use in this group of patients.https://sajp.org.za/index.php/sajp/article/view/1927schizophrenia spectrum disorderpsychotic disorderscannabis usesouth africaalcohol use.
spellingShingle Khanya Mona
Vuyokazi Ntlantsana
Andrew M. Tomita
Saeeda Paruk
Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
South African Journal of Psychiatry
schizophrenia spectrum disorder
psychotic disorders
cannabis use
south africa
alcohol use.
title Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
title_full Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
title_fullStr Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
title_full_unstemmed Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
title_short Prevalence of cannabis use in people with psychosis in KwaZulu-Natal, South Africa
title_sort prevalence of cannabis use in people with psychosis in kwazulu natal south africa
topic schizophrenia spectrum disorder
psychotic disorders
cannabis use
south africa
alcohol use.
url https://sajp.org.za/index.php/sajp/article/view/1927
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