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Prevalence and factors associated with illicit substance use among persons with Schizophrenia at a Tertiary Referral Hospital in Zambia

Author

Listed:
  • Kimberley R Kurehwatira
  • Emmanuel L Luwaya
  • Joreen P Povia
  • Chileleko Siakabanze
  • Salma M Baines
  • Emmanuel Yumba
  • Prince Mulambo
  • David N Masta
  • Nestorine N Ngongo
  • Natasha Chishala
  • Emmanuel O Riwo
  • Katongo H Mutengo
  • Hanzooma Hatwiko
  • Martin Chakulya
  • Lukundo Siame
  • Bislom C Mweene
  • Sepiso K Masenga

Abstract

Schizophrenia frequently involves comorbid substance use, exacerbating symptoms and reducing treatment efficacy yet no prior studies have examined this comorbidity locally. This study determined the prevalence and factors associated with illicit substance use among adults with schizophrenia at the Livingstone University Teaching Hospital (LUTH). A hospital-based single center cross-sectional study was conducted at LUTH from January to June 2023. A sample of 303 adults with schizophrenia were recruited via systematic random sampling. Data were collected from existing medical records which included documentation from structured interviews with validated tools (Alcohol, Smoking, and Substance Involvement Screening Test [ASSIST], Positive and Negative Syndrome Scale [PANSS]) conducted as part of routine clinical care. Sociodemographic, clinical, and substance use variables were analyzed using chi-square tests and multivariate logistic regression to identify factors associated with illicit substance use. The prevalence of illicit substance use was 31.1% (94/303). Alcohol use (AOR = 6.08, 95% CI: 3.14–11.78, p

Suggested Citation

  • Kimberley R Kurehwatira & Emmanuel L Luwaya & Joreen P Povia & Chileleko Siakabanze & Salma M Baines & Emmanuel Yumba & Prince Mulambo & David N Masta & Nestorine N Ngongo & Natasha Chishala & Emmanue, 2026. "Prevalence and factors associated with illicit substance use among persons with Schizophrenia at a Tertiary Referral Hospital in Zambia," PLOS Global Public Health, Public Library of Science, vol. 6(1), pages 1-14, January.
    • Handle: RePEc:plo:pgph00:0005024
    DOI: 10.1371/journal.pgph.0005024
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