Volume 17, Issue 3 pp. 235-240

Hostility Among Methamphetamine Users Experiencing Psychotic Symptoms

Rebecca McKetin PhD

Corresponding Author

Rebecca McKetin PhD

National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia

National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, 2052, Australia. E-mail: [email protected]Search for more papers by this author
Jennifer McLaren BA

Jennifer McLaren BA

National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia

Search for more papers by this author
Dan I. Lubman PhD

Dan I. Lubman PhD

ORYGEN Research Centre, Department of Psychiatry, University of Melbourne, Melbourne, Australia

Search for more papers by this author
Leanne Hides PhD

Leanne Hides PhD

ORYGEN Research Centre, Department of Psychiatry, University of Melbourne, Melbourne, Australia

Search for more papers by this author
First published: 18 February 2010
Citations: 25

Abstract

The aim of the study was to provide empirical data on the severity of hostility among methamphetamine users experiencing psychotic symptoms. Participants were 71 methamphetamine users from the general community who had experienced positive psychotic symptoms in the past year. Psychotic symptoms were defined as a score of 4 or greater on the Brief Psychiatric Rating Scale (BPRS) subscales of suspiciousness, unusual thought content, or hallucinations. The BPRS hostility subscale was used to measure hostility during the most severe symptom episode during the preceding year. Pathological hostility (BPRS score of 4+) was reported by 27% of participants during their most severe episode of psychotic symptoms. Hostility was significantly more common among participants experiencing severe psychotic symptoms (BPRS score 6–7, 42% vs. 15%) or where the psychotic symptoms continued for at least two days (43% vs. 20%). Daily heroin use and low levels of schooling were also correlated with hostility. Clinically significant hostility co-occurs with psychotic symptoms in around one-quarter of methamphetamine users who experience psychosis, and it is more common with severe psychotic symptoms that persist for longer than two days.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.