The impact of the COVID-19 pandemic on presentations to health services following self-harm: systematic review.

BACKGROUND: Evidence on the impact of the pandemic on healthcare presentations for self-harm has accumulated rapidly. However, existing reviews do not include studies published beyond 2020. AIMS: To systematically review evidence on presentations to health services following self-harm during the COVID-19 pandemic. METHOD: A comprehensive search of databases (WHO COVID-19 database; Medline; medRxiv; Scopus; PsyRxiv; SocArXiv; bioRxiv; COVID-19 Open Research Dataset, PubMed) was conducted. Studies published from 1 January 2020 to 7 September 2021 were included. Study quality was assessed with a critical appraisal tool. RESULTS: Fifty-one studies were included: 57% (29/51) were rated as 'low' quality, 31% (16/51) as 'moderate' and 12% (6/51) as 'high-moderate'. Most evidence (84%, 43/51) was from high-income countries. A total of 47% (24/51) of studies reported reductions in presentation frequency, including all six rated as high-moderate quality, which reported reductions of 17-56%. Settings treating higher lethality self-harm were overrepresented among studies reporting increased demand. Two of the three higher-quality studies including study observation months from 2021 reported reductions in self-harm presentations. Evidence from 2021 suggests increased numbers of presentations among adolescents, particularly girls. CONCLUSIONS: Sustained reductions in numbers of self-harm presentations were seen into the first half of 2021, although this evidence is based on a relatively small number of higher-quality studies. Evidence from low- and middle-income countries is lacking. Increased numbers of presentations among adolescents, particularly girls, into 2021 is concerning. Findings may reflect changes in thresholds for help-seeking, use of alternative sources of support and variable effects of the pandemic across groups.

Suicide rates and voting choice in the UK's 2016 national Brexit referendum on European Union membership: cross-sectional ecological investigation across England's local authority populations.

BACKGROUND: Individual- and area-level risk factors for suicide are relatively well-understood but the role of macro social factors such as alienation, social fragmentation or 'anomie' is relatively underresearched. Voting choice in the 2016 referendum on the UK's membership of the European Union (EU) provides a potential measure of anomie. AIMS: To examine associations between percentage 'Leave' votes in the EU referendum and suicide rates in 2015-2017, the period just prior to, and following, the referendum. METHOD: National cross-sectional ecological study of 315 English local authority populations. Associations between voting choice in the EU referendum and age-standardised suicide rates, averaged for the years 2015, 2016 and 2017, were examined. RESULTS: Overall there was a weak, but statistically significant, positive correlation between the local authority-level percentage 'Leave' vote in 2016 and the suicide rate 2015-2017: Pearson's correlation coefficient, r = 0.17; P = 0.003. This relationship was explained by populations having an older age distribution, being more deprived and lacking ethnic diversity. However, there was divergence (likelihood ratio test for interaction, χ2 = 7.2, P = 0.007) in the observed associations between London and the provincial regions with Greater London having a moderately strong negative association (r = -0.40; P = 0.02) and the rest of England a weak positive association (r = 0.17; P = 0.004). CONCLUSIONS: Deprivation, older age distribution and a lack of ethnic diversity seems to explain raised suicide risk in Brexit-voting communities. A greater sense of alienation among people feeling 'left behind'/'left out' may have had some influence too, although multilevel modelling of individual- versus area-level data are needed to examine these complex relationships. The incongruent ecological relationship observed for London likely reflect its distinct social, economic and health context.

Temporal trends in incidence of hospital-treated self-harm among adolescents in Denmark: national register-based study.

BACKGROUND: Studies conducted in the UK and in Ireland have reported increased rates of self-harm in adolescent females from around the time of the 2008 economic recession and through periods of subsequent national austerity programme implementation. It is not known if incidence rates have increased similarly in other Western European countries during this period. METHODS: Data from interlinked national administrative registers were extracted for individuals born in Denmark during 1981-2006. We estimated gender- and age-specific incidence rates (IRs) per 10,000 person-years at risk for hospital-treated non-fatal self-harm during 2000-2016 at ages 10-19 years. RESULTS: Incidence of self-harm peaked in 2007 (IR 25.1) and then decreased consistently year on year to 13.8 in 2016. This pattern was found in all age groups, in both males and females and in each parental income tertile. During the last 6 years of the observation period, 2011-2016, girls aged 13-16 had the highest incidence rates whereas, among boys, incidence was highest among 17-19 year olds throughout. CONCLUSIONS: The temporal increases in incidence rates of self-harm among adolescents observed in some Western European countries experiencing major economic recession were not observed in Denmark. Restrictions to sales of analgesics, access to dedicated suicide prevention clinics, higher levels of social spending and a stronger welfare system may have protected potentially vulnerable adolescents from the increases seen in other countries. A better understanding of the specific mechanisms behind the temporal patterns in self-harm incidence in Denmark is needed to help inform suicide prevention in other nations.

Risk assessment scales to predict risk of hospital treated repeat self-harm: A cost-effectiveness modelling analysis.

BACKGROUND: Risk scales are used widely for assessing individuals presenting to Emergency Departments (EDs) following self-harm. There is growing evidence that risk scales have limited clinical utility in identifying episodes at highest risk of repeat self-harm. However, their cost-effectiveness in terms of treatment allocation and subsequent repeat self-harm is unknown. We aimed to examine the cost-effectiveness of five risk scales (SAD PERSONS Scale, Modified SAD PERSONS Scale, ReACT Self-Harm Rule, Manchester Self-Harm Rule, Barratt Impulsivity Scale) and single item clinician and patient ratings of risk. METHOD: Quality-Adjusted Life Years were estimated for each episode. The five risk scales and the patient rating were compared to the clinician rating. Incremental cost-effectiveness ratios (ICERs) were estimated for each scale, using a range of ICER thresholds. Sensitivity analysis explored different model assumptions. RESULTS: The formal scales were less cost-effective than the clinician and patient ratings across a range of ICER thresholds (£0-£30,000). The five scales were also less cost-effective than the clinician rating in most alternative scenario analyses. However, the clinician rating would be likely to result in unnecessary treatment costs for over half of patients identified as high risk. LIMITATIONS: Our primary model depended on the assumption that high-intensity care reduced patients' risk of further self-harm. CONCLUSION: The use of formal assessment tools for managing self-harm presentations to EDs did not appear to be cost-effective. While the judgement of a mental health clinician was found to be slightly more cost-effective, it still resulted in incorrect allocation of costs and missed treatment opportunities.

Psychosocial Assessment of Self-Harm Patients and Risk of Repeat Presentation: An Instrumental Variable Analysis Using Time of Hospital Presentation.

BACKGROUND: Clinical guidelines have recommended psychosocial assessment of self-harm patients for years, yet estimates of its impact on the risk of repeat self-harm vary. Assessing the association of psychosocial assessment with risk of repeat self-harm is challenging due to the effects of confounding by indication. METHODS: We analysed data from a cohort study of 15,113 patients presenting to the emergency departments of three UK hospitals to investigate the association of psychosocial assessment with risk of repeat hospital presentation for self-harm. Time of day of hospital presentation was used as an instrument for psychosocial assessment, attempting to control for confounding by indication. RESULTS: Conventional regression analysis suggested psychosocial assessment was not associated with risk of repeat self-harm within 12 months (Risk Difference (RD) 0.00 95% confidence interval (95%CI) -0.01 to 0.02). In contrast, IV analysis suggested risk of repeat self-harm was reduced by 18% (RD -0.18, 95%CI -0.32 to -0.03) in those patients receiving a psychosocial assessment. However, the instrument of time of day did not remove all potential effects of confounding by indication, suggesting the IV effect estimate may be biased. CONCLUSIONS: We found that psychosocial assessments reduce risk of repeat self-harm. This is in-line with other non-randomised studies based on populations in which allocation to assessment was less subject to confounding by indication. However, as our instrument did not fully balance important confounders across time of day, the IV effect estimate should be interpreted with caution.

Risk factors associated with repetition of self-harm in black and minority ethnic (BME) groups: a multi-centre cohort study.

BACKGROUND: Little information is available to inform clinical assessments on risk of self-harm repetition in ethnic minority groups. METHODS: In a prospective cohort study, using data collected from six hospitals in England for self-harm presentations occurring between 2000 and 2007, we investigated risk factors for repeat self-harm in South Asian and Black people in comparison to Whites. RESULTS: During the study period, 751 South Asian, 468 Black and 15,705 White people presented with self-harm in the study centres. Repeat self-harm occurred in 4379 individuals, which included 229 suicides (with eight of these fatalities being in the ethnic minority groups). The risk ratios for repetition in the South Asian and Black groups compared to the White group were 0.6, 95% CI 0.5-0.7 and 0.7, 95% CI 0.5-0.8, respectively. Risk factors for repetition were similar across all three groups, although excess risk versus Whites was seen in Black people presenting with mental health symptoms, and South Asian people reporting alcohol use and not having a partner. Additional modelling of repeat self-harm count data showed that alcohol misuse was especially strongly linked with multiple repetitions in both BME groups. LIMITATIONS: Ethnicity was not recorded in a third of cases which may introduce selection bias. Differences may exist due to cultural diversity within the broad ethnic groups. CONCLUSION: Known social and psychological features that infer risk were present in South Asian and Black people who repeated self-harm. Clinical assessment in these ethnic groups should ensure recognition and treatment of mental illness and alcohol misuse.

Assessment rates and compliance with assertive follow-up after self-harm: cohort study.

The objectives of this study were to identify 1) the proportion of self-harm episodes that resulted in assessment by a specialist self-harm team and offers, attendance, and completion of brief therapy and 2) the factors associated with these treatment options. A prospective cohort study of 717 hospital presentations of self-harm was conducted. Rates of assessment, offers and completion of therapy ranged from 50% to 60%. Of those offered therapy, 73% attended one or more sessions. Attendance was associated with depressive psychopathology and existing treatment in primary care. These results may reflect some of the challenges of engaging this patient group. We found that receipt of treatment was determined by patient factors. Future studies might also examine the role of service-related or clinician factors.