Gender disparity particularly evident among 10-15 year olds
Girls in Wales who have self harmed are significantly more likely than boys to be admitted to hospital, after turning up for emergency care, finds the first study of its kind, published online in the Archives of Disease in Childhood.
This gender disparity is particularly evident among 10-15 year olds who have deliberately harmed themselves, the findings indicate.
Most analyses of the rates of self harm among young people, to include any intentional injury or poisoning, regardless of suicidal intent, have been restricted to hospital admissions data, say the researchers.
They wanted to capture the full spectrum of those accessing healthcare services, so looked at routinely collected data from general practice, emergency care departments, and outpatient clinics, as well as hospital admissions for the years 2003 to 2015 inclusive in Wales.
The study included 937, 697 young people, aged between 10 and 24, of whom 15,739 accessed healthcare services for self harm.
Young people from areas of greatest deprivation were most at risk, with rates of self harm more than double those in young people living in areas of least deprivation.
Overall, the numbers accessing primary care services were higher (1 in 4) than for any other healthcare service, but changed little between 2003 and 2015.
But the numbers of young people turning up in emergency care and subsequently admitted to hospital after an episode of self harm did increase.
Cases were highest among 15 to 19 year olds across all healthcare services, but the largest increases were seen among 10 to 14 year olds, particularly girls, and from 2011 onwards.
Hospital admissions for this younger age group almost doubled among boys and young men, and more than doubled among girls and young women.
But boys who had harmed themselves and turned up in emergency care were much less likely to be admitted to hospital than girls, even when they had poisoned themselves, a pattern the researchers describe “as a cause for concern.”
And over half (58%) of those seeking emergency care for self harm were boys and young men.
The gender disparity was most evident among 10-15 year olds: three quarters (76%) of girls in this age group were admitted to hospital compared with only around half of the boys (49%).
And girls who had poisoned themselves were significantly more likely to be admitted (90%) than boys (69%) of the same age group.
“Self injury is more likely to be used by males and less likely to result in admission if not medically required, possibly based on misconceptions regarding suicide risk,” note the researchers.
This is an observational study, and as such, can’t establish cause, and the researchers emphasise that the study data reflect contacts made with healthcare services rather than actual numbers of cases.
But given that the data are based on a large sample of the population over a period of 12 years, the results are likely to be applicable to the rest of the UK, they suggest.
Notes for editors
Self-harm presentation across healthcare settings by sex in young people: an e-cohort study using routinely collected linked healthcare data in Wales, UK. doi 10.1136/archdischild-2019-317248
Journal: Archives of Disease in Childhood
Funding: MQ Mental Health Research Charity
Link to AMS labelling system:
Peer reviewed: Yes
Evidence type: Observational
Subjects: Young people
Link to article: https://adc.bmj.com/lookup/doi/10.1136/archdischild-2019-317248
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