Longitudinal assessment of the effect of cannabis use on hospital readmission rates in early psychosis: A 6-year follow-up in an inpatient cohort

PSYCHIATRY RESEARCH

卷:268

Article

Colizzi, Marco^1,2  Burnett, Natoy^1,2  Costa, Rosalia^3,4  De Agostini, Mattia^1,2,5  Griffin, James^1,2  Bhattacharyya, Sagnik^1,2 

[1] South London & Maudsley NHS Fdn Trust, BRC, NIHR, London SE5 8AF, England

[2] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Psychosis Studies, London SE5 8AF, England

[3] Tavistock & Portman NHS Fdn Trust, Tavistock Ctr, Gender Ident Dev Serv, London NW3 5BA, England

[4] Ctr Salute Mentale Taranto, Azienda Unita Sanit Locale Taranto, Polo Cent, Dipartimento Salute Mentale, I-74123 Taranto, Italy

[5] Univ Bologna, Alma Mater Studiorum, I-40126 Bologna, Italy

关键词: Schizophrenia;    Substance use;    Relapse;    Male gender;    Black ethnicity;   

DOI  :  10.1016/j.psychres.2018.08.005

来源: Elsevier

【 摘 要 】

Cannabis is the most commonly used illicit drug in psychosis patients and has been identified as a risk factor for relapse and subsequent hospital readmission, having substantial economic implications. To clarify the contribution of cannabis consumption to hospital readmission, a consecutive inpatient cohort of 161 early psychosis patients was included into the study. Data on cannabis use at admission and number of hospital readmissions and length of stay (LOS, number of inpatient days) in a 6-year follow-up was extracted from clinical notes. 62.4% of the patients had lifetime cannabis use. Their admission lasted on average 54.3 +/- 75 days and over the following 6 years patients had 2.2 +/- 2.8 hospital readmissions, for a total of 197.4 +/- 331.5 days. Cannabis use significantly predicted the number of hospital readmissions and LOS in the following 6 years, the latter remaining significant after adjusting for use of other substance. Cannabis-using patients of male gender and Black ethnicity had a longer LOS at follow-up compared to female patients and other ethnic groups, respectively. Having a history of cannabis use when admitted to an early intervention inpatient unit for psychosis is associated with a higher number of subsequent hospital readmissions and a longer LOS, especially in male and Black patients.

【 授权许可】

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