Skip to content
The Kids Research Institute Australia logo
Donate

Suicidal behaviours

Young people aged 11 years and older provided information on their suicidal ideation, suicide plans and suicide attempts.

What adolescents told us about suicidal behaviours

Suicidal behaviours include suicidal ideation (serious thoughts about taking one's own life), suicide plans and suicide attempts. These differ from self-harm in that the self-injury is intended to end in death.

    • About one in thirteen (7.5%) 12-17 year-olds had seriously considered attempting suicide in the previous 12 months. This is equivalent to around 128,000 young people aged 12-17 years.
    • One in twenty (5.2%) had made a plan.
    • One in forty (2.4%) or around 41,000 12‑17 year‑olds reported having attempted suicide in the previous 12 months. One quarter or 0.6% received medical treatment as a result of their injuries.
    • Suicidal behaviours were more common in females than males and in 16-17 year-olds compared with younger adolescents.
    •  Around one in seven (15.4%) females aged 16-17 years had seriously considered attempting suicide and one in twenty (4.7%) had attempted suicide in the previous 12 months.
    • The rates of all suicidal behaviours were markedly higher in young people with major depressive disorder. These were even higher for young females with major depressive disorder.
      - Approximately half (56.4%) of females aged 12‑17 years with major depressive disorder (based on self-report) had seriously considered suicide and just over a fifth (22.1%) had attempted suicide in the previous 12 months.
      - 13.8% of males aged 12-17 years with major depressive disorder (based on self-report) had attempted suicide in the previous 12 months.

Suicidal behaviours in the past 12 months among 12-17 year-olds by sex and age group

Suicide attempts in the past 12 months in 12-17 year-olds with major depressive disorder based on self-report and for all adolescents by sex