ArticleThe Lancet regional health. Western Pacific2020
Prevalence and risk factors for repetition of non-fatal self-harm in Hong Kong, 2002-2016: A population-based cohort study.
Article in The Lancet regional health. Western Pacific, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Prediction of self-harm in people with newly-diagnosed depression: development and validation of risk prediction models.Molecular psychiatry · 2026Article
- Article
- Population-level productivity-adjusted life years lost in individuals with type 2 diabetes in Hong Kong: a life table modelling study.The Lancet regional health. Western Pacific · 2025Article
- Incidence of Deliberate Self-Harm in Hong Kong Before and During the COVID-19 Pandemic: Population-Wide Retrospective Cohort Study.JMIR public health and surveillance · 2025Article
- Repeated hospital admission for intentional poisonings among older adults - a Swedish national register-based study.BMC geriatrics · 2024Article
- Article
- Effects of Community-Based Caring Contact in Reducing Thwarted Belongingness Among Postdischarge Young Adults With Self-Harm: Randomized Controlled Trial.JMIR formative research · 2023Article
- Association of mental health status between self-poisoning suicide patients and their family members: a matched-pair analysis.BMC psychiatry · 2023Article
- Predicting dementia diagnosis from cognitive footprints in electronic health records: a case-control study protocol.BMJ open · 2020Article
- Timing of supports and interventions following self-harm is crucial.The Lancet regional health. Western Pacific · 2020Article
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3 authors.
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Abstract
backgroundA history of self-harm is strongly associated with future self-harm attempts. Large-scale Asian cohort studies examining risk factors for repeated self-harm are lacking. This paper reports on annual prevalence, cumulative risk, annual risk of non-fatal self-harm repetition, and risk factors among Hong Kong patients with a history of self-harm.
methodsThe Hong Kong Clinical Data Analysis and Reporting System (CDARS) provided all accident & emergency department and inpatient self-harm records between Jan 1, 2002 and Dec 31, 2016. Demographic and clinical characteristics were extracted. Annual prevalence, over-time cumulative and annual risks of non-fatal self-harm repetition were estimated, and the adjusted hazard ratios (HR; plus 95% CIs) of putative risk factors associated with repetition were estimated using Wei-Lin-Weissfeld (WLW) generalization of the Cox model for recurrent event analysis.
findingsThere were 127,801 self-harm episodes by 99,116 individuals. Annual prevalence of repeated self-harm, of all self-harms, ranged from 7•36% to 28•71% during the study period. Risk of self-harm repetition within one year of the index event was 14•25% (95% CI, 14•04%-14•46%). People with four or more previous self-harm episodes carried the highest risk of self-harm repetition (adjusted HR 4•81 [95% CI 4•46-5•18]). Significant risk factors for non-fatal self-harm repetition included male gender (1•08 [1•05-1•11]), older age (65+ years) (1•07 [1•01-1•13]), social welfare for payment (1•30 [1•27-1•34]), psychiatric admission (1•60 [1•50-1•72]), self-injury only (1•19 [1•15-1•23]), self-injury combined with self-poisoning (1•38 [1•24-1•53]), depression and bipolar disorders (1•09 [1•04-1•14]), personality disorders (1•18 [1•06-1•32]), substance misuse (1•31 [1•27-1•36]), and asthma (1•18 [1•02-1•36]).
interpretationHong Kong self-harm patients with non-fatal self-harm events should be supported by effective, timely and ongoing aftercare plans based on their risk profiles, to reduce risk of self-harm reoccurrence.
fundingResearch Grants Council, General Research Funding: 17611619.
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