Bauernfreund, Yehudit;
Launders, Naomi;
Favarato, Graziella;
Hayes, Joseph F;
Osborn, David;
Sampson, Elizabeth L;
(2022)
Incidence and associations of hospital delirium diagnoses in 85979 people with severe mental illness: a data linkage study.
Acta Psychiatrica Scandinavica
10.1111/acps.13480.
(In press).
Preview |
Text
Acta Psychiatr Scand - 2022 - Bauernfreund - Incidence and associations of hospital delirium diagnoses in 85 979 people.pdf Download (1MB) | Preview |
Abstract
INTRODUCTION: Delirium is an acute neuro-psychiatric disturbance precipitated by a range of physical stressors, with high morbidity and mortality. Little is known about its relationship with severe mental illness (SMI). METHODS: We conducted a retrospective cohort study using linked data analyses of the UK Clinical Practice Research Datalink (CPRD) and Hospital Episodes Statistics (HES) databases. We ascertained yearly hospital delirium incidence from 2000 - 2017 and used logistic regression to identify associations with delirium diagnosis in a population with severe mental illness. RESULTS: The cohort included 249,047 people with severe mental illness with median follow-up time in CPRD of 6.4 years. 85,979 patients were eligible for linkage to HES. Delirium incidence increased from 0.04 (95% CI 0.02 - 0.07) delirium associated admissions per 100 person-years in 2000 to 1.05 (95% CI 0.93 - 1.17) per 100 person-years in 2017, increasing most notably from 2010 onwards. Delirium was associated with older age at study entry (OR 1.05 per year, 95% CI 1.05-1.06), SMI diagnosis of bipolar affective disorder (OR 1.66, 95% CI 1.44 - 1.93) or other psychosis (OR 1.56, 95% CI 1.35 - 1.80) relative to schizophrenia, and more physical comorbidities (OR 1.08 per additional comorbidity of the Charlson Comorbidity Index, 95% CI 1.02 - 1.14). Patients with delirium received more antipsychotic medication during follow-up (1-2 antipsychotics OR 1.65, 95% CI 1.44 - 1.90; >2 antipsychotics OR 2.49, 95% CI 2.12 - 2.92). CONCLUSIONS: The incidence of recorded delirium diagnoses in people with severe mental illness has increased in recent years. Older people prescribed more antipsychotics and with more comorbidities have a higher incidence. Linked electronic health records are feasible for exploring hospital diagnoses such as delirium in SMI.
| Type: | Article |
|---|---|
| Title: | Incidence and associations of hospital delirium diagnoses in 85979 people with severe mental illness: a data linkage study |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1111/acps.13480 |
| Publisher version: | https://doi.org/10.1111/acps.13480 |
| Language: | English |
| Additional information: | Copyright © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Bipolar Disorder, Databases, Delirium, Psychotic Disorders, Schizophrenia |
| UCL classification: | UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Division of Psychiatry UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10152813 |
Archive Staff Only
 |
View Item |
