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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Long-term mortality after poisoning with antipsychotics

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INTRODUCTION: The objective of this study was to investigate the long-term mortality and cause of death after deliberate self-poisoning with antipsychotics. Furthermore, we investigated the risk of repeated self-poisoning after a first episode of poisoning with antipsychotics.

METHODS: We identified patients with antipsychotic poisoning from the Danish Poison Information Centre Database and correlated their personal identification number with four Danish national registries related to health aspects.

RESULTS: From August 2006 to December 2013 we identified 2289 patients poisoned with antipsychotic agents. The average age of the patients was 35.6 years (SD 14.3) and 68.5% were women. Eleven patients died during the first 30 days, and at the end of follow-up in March 2014, 150 patients were deceased, leading to a mortality rate of 2.1 per 100 person-years and a standardized mortality ratio of 9.0. The most common causes of death were poisoning (29%) and violent suicide (18%) - however half of the patients died from natural reasons. 643 patients (28%) repeated the poisoning once or more.

CONCLUSIONS: Poisoning with antipsychotics was associated with an increased risk of death. Most of these deaths were preventable, and this highlights the need for secondary prophylaxis following a suicide attempt.

Original languageEnglish
JournalClinical toxicology (Philadelphia, Pa.)
Volume55
Issue number4
Pages (from-to)267-274
Number of pages8
ISSN1556-3650
DOIs
Publication statusPublished - Apr 2017

    Research areas

  • Adult, Antipsychotic Agents/poisoning, Cause of Death, Denmark, Endpoint Determination, Female, Follow-Up Studies, Humans, Male, Middle Aged, Poisoning/diagnosis, Prognosis, Prospective Studies, Retrospective Studies, Risk Factors, Suicide, Attempted/prevention & control, Young Adult

ID: 55742576