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Evaluation of common prescription analgesics and adjuvant analgesics as markers of suicide risk: a longitudinal population-based study in England

Alothman, Danah; Tyrrell, Edward; Lewis, Sarah; Card, Timothy; Fogarty, Andrew William

Evaluation of common prescription analgesics and adjuvant analgesics as markers of suicide risk: a longitudinal population-based study in England Thumbnail


Authors

Danah Alothman

Dr TIM CARD tim.card@nottingham.ac.uk
Clinical Associate Professor

ANDREW FOGARTY ANDREW.FOGARTY@NOTTINGHAM.AC.UK
Clinical Associate Professor & Reader in Clinical Epidemiology



Abstract

Background: Analgesics prescriptions may provide a marker for identifying individuals at higher risk of suicide. In particular, awareness of which analgesics are implicated may help clinicians assess and modify risk. Method: A case–control study in England using the Clinical Practice Research Datalink (for primary care records) linked with hospital and national mortality electronic registries. We included patients aged ≥15 who died by suicide between 2001 and 2019 (N = 14,515), to whom we individually matched 580,159 controls by suicide date and general practice (N = 594,674). Odds ratios (ORs) for suicide, controlled for age and sex, were assessed using conditional logistic regression. Findings: Suicide risks were highest in those prescribed adjuvant analgesics (pregabalin, gabapentin and carbamazepine) (adjusted OR 4.07; 95% confidence intervals CI: 3.62–4.57), followed by those prescribed opioids (adjusted OR 2.01; 95% CI: 1.88–2.15) and those prescribed non-opioid analgesics (adjusted OR 1.48; 95% CI: 1.39–1.58) compared to those not prescribed these medications. By individual analgesic, the highest suicide risks were seen in patients prescribed oxycodone (adjusted OR 6.70; 95% CI: 4.49–9.37); pregabalin (adjusted OR 6.50; 95% CI: 5.41–7.81); morphine (adjusted OR 4.54; 95% CI: 3.73–5.52); and gabapentin (adjusted OR 3.12; 95% CI: 2.59–3.75). Suicide risk increased linearly with the number of analgesic prescriptions in the final year (p < 0.01 based on the likelihood ratio test), and the more different analgesics categories were prescribed in the final year (p < 0.01 based on the likelihood ratio test). Interpretation: Analgesic prescribing was associated with higher suicide risk. This is a particular issue with regard to adjuvant non-opiate analgesics. Funding: There was no funding for this study.

Citation

Alothman, D., Tyrrell, E., Lewis, S., Card, T., & Fogarty, A. W. (2023). Evaluation of common prescription analgesics and adjuvant analgesics as markers of suicide risk: a longitudinal population-based study in England. The Lancet Regional Health Europe, 32, Article 100695. https://doi.org/10.1016/j.lanepe.2023.100695

Journal Article Type Article
Acceptance Date Jul 6, 2023
Online Publication Date Jul 20, 2023
Publication Date 2023-09
Deposit Date Jul 21, 2023
Publicly Available Date Jul 21, 2023
Journal The Lancet Regional Health - Europe
Electronic ISSN 2666-7762
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 32
Article Number 100695
DOI https://doi.org/10.1016/j.lanepe.2023.100695
Keywords Analgesics; Pain; Suicide; Pregabalin; Gabapentin; Anticonvulsants
Public URL https://nottingham-repository.worktribe.com/output/23219343
Publisher URL https://www.sciencedirect.com/science/article/pii/S266677622300114X
Additional Information This article is maintained by: Elsevier; Article Title: Evaluation of common prescription analgesics and adjuvant analgesics as markers of suicide risk: a longitudinal population-based study in England; Journal Title: The Lancet Regional Health - Europe; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.lanepe.2023.100695; Content Type: article; Copyright: © 2023 The Authors. Published by Elsevier Ltd.

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