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Risk of suicide after a self-poisoning episode: a self-controlled case series study.
- Source :
- Social Psychiatry & Psychiatric Epidemiology; Dec2021, Vol. 56 Issue 12, p2155-2162, 8p
- Publication Year :
- 2021
-
Abstract
- Purpose: The risk of death from suicide after self-poisoning has been known to be significantly higher as compared to the general population. Nevertheless, the change in suicide risk before and after self-poisoning is still unclear. Methods: The database of territory-wide medical records collected by the Hospital Authority of Hong Kong was used to identify inpatients who have survived the first-ever self-poisoning but died by suicide between January 1, 2001, and December 31, 2010. A self-controlled case series ("SCCS") design controlling for time-invariant patient confounders was used to explore the temporal change in suicide risk after the first self-poisoning episode. Results: During the study period, 227 people in the database died from suicide after surviving one episode of self-poisoning. A significant increase of the risk of suicide in the first 12 months after the first lifetime self-poisoning—Risk Ratio ("RR") 2.88 (95% CI 1.74–4.76)—was detected. The RR gradually returned to baseline levels after the second post-poisoning period. Conclusion: By within-person comparison, the net increase of the suicide risk caused by the first self-poisoning was quantitatively modeled, demonstrating that the first lifetime self-poisoning event itself is a modifiable risk factor of subsequent suicide death. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09337954
- Volume :
- 56
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Social Psychiatry & Psychiatric Epidemiology
- Publication Type :
- Academic Journal
- Accession number :
- 153317118
- Full Text :
- https://doi.org/10.1007/s00127-021-02074-0