Self-harm in children 12 years and younger: characteristics and outcomes based on the Multicentre Study of Self-harm in England.

BACKGROUND: Very little is known about self-harm in children. We describe the characteristics and outcomes of children under 13 years who presented following self-harm to five hospitals in England. METHODS: We included children under 13 years who presented after self-harm to hospitals in the Multicentre Study of Self-harm in England. Information on patients' characteristics and method of self-harm was available through monitoring of self-harm in the hospitals. Area level of socioeconomic deprivation was based on the English Index of Multiple Deprivation (IMD). RESULTS: 387 children aged 5-12 years presented to the study hospitals in 2000-2016, 39% of whom were 5-11 years. Boys outnumbered girls 2:1 at 5-10 years. The numbers of boys and girls were similar at age 11, while at 12 years there were 3.8 girls to every boy. The proportion of study children living in neighbourhoods ranked most deprived (43.4%) was twice the national average. 61.5% of children self-poisoned, 50.6% of them by ingesting analgesics. Of children who self-injured, 45.0% self-cut/stabbed, while 28.9% used hanging/asphyxiation. 32% of the children had a repeat hospital presentation for self-harm, 13.5% re-presented within a year. CONCLUSIONS: Gender patterns of self-harm until age 11 years are different to those of adolescents, with a male preponderance, especially in 5-10 years, and hanging/suffocation being more common. The frequent use of self-poisoning in this age group highlights the need for public health messages to encourage safer household storage of medicines. Self-harm in children is strongly associated with socioeconomic deprivation; understanding the mechanisms involved could be important in effective prevention.

Life problems in children and adolescents who self-harm: findings from the multicentre study of self-harm in England.

BACKGROUND: Self-harm, a significant and increasing global problem in children and adolescents, is often repeated and is associated with risk of future suicide. To identify potential interventions, we need to understand the life problems faced by children and adolescents, and by sub-groups of younger people who self-harm. Our aims were to include the following: (a) investigate the type and frequency of life problems in a large sample of children and adolescents who self-harmed. (b) Examine whether problems differ between those who repeat self-harm and those who do not. METHODS: We analysed data for 2000 to 2013 (follow up until 2014) from the Multicentre Study of Self-harm in England on individuals aged 11 to 18 years who presented to one of the five study hospitals following self-harm and received a psychosocial assessment including questions about problems, which precipitated self-harm. RESULTS: In 5648 patients (12,261 self-harm episodes), (75.5% female, mean age 16.1 years) the most frequently reported problems at first episode of self-harm were family problems. Problems around study/employment/study and relationships with friends also featured prominently. The types of problems that precede self-harm differed between late childhood/early adolescence. Abuse, mental health problems and legal problems significantly predicted repeat self-harm for females. CONCLUSION: The most common problems reported by both genders were social/interpersonal in nature, indicating the need for relevant services embedded in the community (e.g. in schools/colleges). Self-harm assessment and treatment choices for children and adolescents must take age and gender into account. To prevent future self-harm, individualised supports and services are particularly needed for abuse, mental health and legal problems.

Self-harm in midlife: analysis using data from the Multicentre Study of Self-harm in England.

BACKGROUND: In England suicide rates are highest in midlife (defined as age 40-59). Despite a strong link with suicide there has been little focus on self-harm in this age group.AimTo describe characteristics and treatment needs of people in midlife who present to hospital following self-harm. METHOD: Data from the Multicentre Study of Self-harm in England were used to examine rates over time and characteristics of men and women who self-harm in midlife. Data (2000-2013) were collected via specialist assessments or hospital records. Trends were assessed by negative binomial regression models. Comparative analysis used logistic regression models for binary outcomes. Repetition and suicide mortality were assessed by Cox proportional hazards models. RESULTS: A quarter of self-harm presentations were made by people in midlife (n = 24 599, 26%). Incidence rates increased over time in men, especially after 2008 (incidence rate ratio [IRR] 1.07, 95% CI 1.02-1.12, P < 0.01), and were positively correlated with national suicide incidence rates (r = 0.52, P = 0.05). Rates in women remained relatively stable (IRR 1.00, 95% CI 1.00-1.02, P = 0.39) and were not correlated with suicide. Alcohol use, unemployment, housing and financial factors were more common in men; whereas indicators of poor mental health were more common in women. In men and women 12-month repetition was 25%, and during follow-up 2.8% of men and 1.2% of women died by suicide. CONCLUSION: Self-harm in midlife represents a key target for intervention. Addressing underlying issues, alcohol use and economic factors may help prevent further self-harm and suicide.Declaration of interestK.H. and N.K. are members of the Department of Health's National Suicide Prevention Advisory Group. N.K. chaired the National Institute for Health and Care Excellence (NICE) guideline development group for the longer-term management of self-harm and the NICE Topic Expert Group which developed the quality standards for self-harm services. N.K. also chairs the NICE guideline committee for the management of depression. All other authors declare no conflict of interest.