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This study aimed to use nuanced statistical methods in a large UK sample to identify and explore the factors associated with different types of frequent user of Emergency Departments (EDs) who are referred to Mental Health Liaison Services (MHLS). A retrospective 5-year longitudinal study was conducted of all attenders (n = 23,718) of four London EDs who were referred to their MHLS. Longitudinal group-based trajectory analysis of monthly MHLS referrals enabled identification of factors which may contribute to membership of the resulting groups. Analysis revealed six clusters representing distinct attendance patterns; three clusters of these were identified as frequent attender groups (occasional, intermediate, heavy) containing 1119 people (4.7%). This 4.7% of the sample accounted for 24.2% of all admissions. Factors significantly related to membership of each of these groups were: having been involuntarily detained under the Mental Health Act, a higher number of care coordinators, and a diagnosis of substance abuse. The study revealed three clusters of frequent ED users with a MHLS referral who were more likely to have certain clinical and social care needs. A small proportion of clients identified as frequent users (4.7%) were responsible for nearly a quarter of all admissions (24.2%) during this timeframe.

Original publication

DOI

10.1016/j.psychres.2017.08.006

Type

Journal article

Journal

Psychiatry Res

Publication Date

12/2017

Volume

258

Pages

194 - 199

Keywords

Emergency Department, Frequent attender, Mental Health Liaison Service, Emergency Service, Hospital, Female, Humans, London, Longitudinal Studies, Male, Mental Health, Mental Health Services, Referral and Consultation, Retrospective Studies, Substance-Related Disorders