Lamplough, Hannah;
Khalaf, Hanan;
Sonigra, Ketan R;
Shanahan, Lisa;
Patalay, Praveetha;
(2024)
Predictors of high intensity use of acute psychiatric inpatient services.
Advances in Mental Health
10.1080/18387357.2024.2324102.
(In press).
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Abstract
Objective: High Intensity Users (HIUs) represent a small group of individuals accounting for a large proportion of inpatient resources. The paper aims to identify risk factors for becoming a High Intensity User of acute inpatient services and to understand the impact of different operationalisations of HIU. Method: Participants were eligible admissions from 2016 to 2022 in an outer London NHS Trust. Retrospective case files were accessed to retrieve data. Regression models were used to identify predictors of HIU, operationalised using three binary and one continuous measure (3+ admissions in one year; 4+ in 5 years; 3+ ever; and percentage of adulthood in hospital). Results: Being of Black ethnicity or younger when first admitted was associated with greater high intensity use, however defined. Risk of 3+ admissions in a year increased with age and was higher for those with personality disorders, previous admissions, those who had been placed in care during childhood, and those with historical cannabis use. Individuals whose first admission was due to a suicide attempt were at lower risk. Different operationalisations of HIU altered the factors that predicted risk. Discussion: The study highlights the need for a consensus HIU definition to help progress the research and clinical efforts to support this group. Identifying and targeting support for those at greater risk for frequent readmission is needed to help reduce readmission and improve outcomes.
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