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Hospital presenting self-harm and risk of fatal and non-fatal repetition: systematic review and meta-analysis.


ABSTRACT:

Background

Non-fatal self-harm is one of the most frequent reasons for emergency hospital admission and the strongest risk factor for subsequent suicide. Repeat self-harm and suicide are key clinical outcomes of the hospital management of self-harm. We have undertaken a comprehensive review of the international literature on the incidence of fatal and non-fatal repeat self-harm and investigated factors influencing variation in these estimates as well as changes in the incidence of repeat self-harm and suicide over the last 30 years.

Methods and findings

Medline, EMBASE, PsycINFO, Google Scholar, article reference lists and personal paper collections of the authors were searched for studies describing rates of fatal and non-fatal self-harm amongst people who presented to health care services for deliberate self-harm. Heterogeneity in pooled estimates of repeat self-harm incidence was investigated using stratified meta-analysis and meta-regression. The search identified 177 relevant papers. The risk of suicide in the 12 months after an index attempt was 1.6% (CI 1.2-2.4) and 3.9% (CI 3.2-4.8) after 5 years. The estimated 1 year rate of non-fatal repeat self-harm was 16.3% (CI 15.1-17.7). This proportion was considerably lower in Asian countries (10.0%, CI 7.3-13.6%) and varies between studies identifying repeat episodes using hospital admission data (13.7%, CI 12.3-15.3) and studies using patient report (21.9%, CI 14.3-32.2). There was no evidence that the incidence of repeat self-harm was lower in more recent (post 2000) studies compared to those from the 1980s and 1990s.

Conclusions

One in 25 patients presenting to hospital for self-harm will kill themselves in the next 5 years. The incidence of repeat self-harm and suicide in this population has not changed in over 10 years. Different methods of identifying repeat episodes of self-harm produce varying estimates of incidence and this heterogeneity should be considered when evaluating interventions aimed at reducing non-fatal repeat self-harm.

SUBMITTER: Carroll R 

PROVIDER: S-EPMC3938547 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Hospital presenting self-harm and risk of fatal and non-fatal repetition: systematic review and meta-analysis.

Carroll Robert R   Metcalfe Chris C   Gunnell David D  

PloS one 20140228 2


<h4>Background</h4>Non-fatal self-harm is one of the most frequent reasons for emergency hospital admission and the strongest risk factor for subsequent suicide. Repeat self-harm and suicide are key clinical outcomes of the hospital management of self-harm. We have undertaken a comprehensive review of the international literature on the incidence of fatal and non-fatal repeat self-harm and investigated factors influencing variation in these estimates as well as changes in the incidence of repeat  ...[more]

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