Rapid national increases in the hospitalisation of Australian youth due to intentional self-harm between 2008 and 2019

Australas Psychiatry. 2022 Apr;30(2):166-170. doi: 10.1177/10398562211047919. Epub 2021 Nov 27.

Abstract

Objective: Australian youth mental health services have received significant funding over the past 15 years. We analysed data on hospitalisation due to intentional self-harm to determine whether increased youth services were associated with reduction in a key indicator of youth population mental health.

Method: Trends in national self-harm hospitalisation data from 2008 to 2019 for youth (<25 years) and adults (>25 years) were analysed using joinpoint regression.

Results: Rates of hospitalisation due to intentional self-harm increased significantly in both male (1.1% per annum, 95% CI [0.2%, 1.9%]) and female (3.0% per annum, 95% CI [0.9%, 5.1%]) youth aged <25 years between 2008 and 2019. Female youth had higher rates of hospitalisation than males, and there were average annual increases of 9.1% (95% CI [2.4%, 16.3%]) and 4.0% (95% CI [0.1%, 7.9%]), and absolute increases of 120% and 47.9%, in the rate of hospitalisation of females aged 0-14 and 15-19, respectively. In contrast, there was no overall change in adults (>25 years).

Conclusions: Rates of hospitalisation due to intentional self-harm in Australian youth have increased despite significant investment in youth mental health services. This result could be attributable to several sociocultural factors and suggests a critical need for more hospital-based emergency youth mental health services.

Keywords: self-harm; suicide; youth.

MeSH terms

  • Adolescent
  • Adult
  • Australia / epidemiology
  • Emergency Service, Hospital
  • Female
  • Hospitalization
  • Humans
  • Male
  • Mental Health Services*
  • Self-Injurious Behavior* / epidemiology