Self-harm

Self-harm is a broad term that refers to a person intentionally inflicting physical harm to their own body, an act that may or may not have been intended to cause death (AIHW 2022).

Rates of self-harm and suicide in Australia differ between males and females. Crude rates of suicide rates in Australia were more than 3 times greater for males (19 per 100,000) than females (6 per 100,000) in 2019–20 (AIHW 2022).

Suicide rates were higher for:

  • males than for females
  • First Nations Australians than for non-Indigenous Australians
  • those who were more socioeconomically disadvantaged.

All of these groups are over-represented in the prison population (AIHW 2022).

A history of self-harm is particularly common in the prison population where risk factors for self-harm – such as a history of childhood abuse, mental health conditions, or alcohol and other drug use disorders – are also more prevalent than in the general population (Barton et al. 2014; Stewart et al. 2018).

A recent study of the health and wellbeing of people in an Australian prison showed that people in prison were 10 times as likely as the general Australian population to report a history of suicide attempts and thoughts of suicide within the previous 12 months (Butler et al. 2018).

Prison entrants' experiences of self-harm

During the data collection period, prison entrants were asked if they:

  • had ever intentionally harmed themself
  • had thoughts of harming themself in the last 12 months (referred to in this section as recent thoughts of self-harm).

Over 1 in 5 (21%) prison entrants reported a history of self-harm (Indicator 1.4.7).

Female prison entrants (42%) were more than 2 times as likely to report a history of self‑harm as male prison entrants (17%) (Figure 5.10).

Non-Indigenous prison entrants (27%) were more likely to report a history of self-harm than First Nations prison entrants (15%) (Figure 5.10). Prison entrants aged 18–24 (29%) were most likely to report a history of self-harm, and prison entrants aged 45 and over were least likely (15%).

Figure 5.10: Prison entrants, history of self-harm, by sex and Indigenous identity, 2022

This horizontal bar chart shows the proportion of all entrants, and entrants by sex and Indigenous identity who reported a history of self-harm.

Notes:

  1. Proportions are representative of this data collection only, and not the entire prison population.
  2. Excludes Victoria, which did not provide data for this item.

Source: Entrants form, 2022 NPHDC.

More than 1 in 7 (15%) prison entrants reported having thoughts of self-harm in the previous 12 months (Indicator 1.4.8).

Female prison entrants (30%) were over 2 times more likely to report recent thoughts of self‑harm than male entrants (13%).

Non-Indigenous prison entrants (17%) were fairly similar to First Nations prison entrants (13%) in reporting recent self-harm thoughts.

Recent thoughts of self-harm were reported most in entrants aged 25–34 (20%), and least in entrants aged 45 and over (9.8%) (Figure 5.11).

Figure 5.11: Prison entrants, thoughts of self-harm in the previous 12 months, by age, 2022

This horizontal bar chart shows the proportion of prison entrants who reported recent thoughts (in the previous 12 months) of self-harm, by age.

Notes

  1. Proportions are representative of this data collection only, and not the entire prison population.
  2. Excludes Victoria, which did not provide data for this item.

Source: Entrants form, 2022 NPHDC.

Identification of self-harm or suicide risk

At the end of the prison entrants’ survey, staff administering the survey were asked if the participant was identified as currently at risk of self-harm or suicide (excluding at 4 prisons in New South Wales where researchers administered surveys).

Participants identified at risk of self-harm or suicide should be supported according to best practice at the prison.

One in 16 (6.3%) prison entrants were identified by staff as being at risk of self-harm or suicide (Indicator 1.4.9).

Female entrants (28%) were 8 times more likely than male entrants (3.6%) to be identified as being at risk of self-harm. Non-Indigenous entrants (6.8%) were similarly as likely to be identified as at risk as First Nations entrants (5.4%).

Prison dischargees experiences of self-harm

Prison dischargees were asked if they had ever intentionally harmed themselves before their current incarceration and if they had intentionally harmed themselves during their current period in prison. 

Almost 1 in 5 (18%) prison dischargees reported a history of self-harm before their current incarceration.

Female prison dischargees (17%) were similar to male dischargees (19%) in reporting a history of self-harm. Non-Indigenous prison dischargees (20%) were similarly as likely to report a history of self-harm as First Nations dischargees (17%) (Figure 5.12). 

Figure 5.12: Prison dischargees, history of self-harm before current incarceration, by sex and Indigenous identity, 2022

This horizontal bar chart shows all dischargees, and dischargees by sex and Indigenous identity who reported a history of self-harm before their current incarceration.

Notes

  1. Proportions are representative of this data collection only, and not the entire prison population.
  2. Excludes Victoria, which did not provide data for this item.

Source: Dischargees form, 2022 NPHDC.

The likelihood of prison dischargees reporting a history of self-harm before their current incarceration increased with age – from 1 in 13 (8.2%) prison dischargees aged 18–24 to 1 in 5 (20%) dischargees aged 45 and over (Figure 5.13).

Figure 5.13: Prison dischargees, history of self-harm before current incarceration, by age, 2022

This horizontal bar chart shows the proportion of prison dischargees who reported a history of self-harm before their current incarceration by age.

Notes

  1. Proportions are representative of this data collection only, and not the entire prison population.
  2. Excludes Victoria, which did not provide data for this item.

Source: Dischargees form, 2022 NPHDC.

The proportion of prison dischargees reporting intentionally harming themselves in prison was lower than those reporting having self-harmed at some stage in their lives. 

One in 20 (5.1%) prison dischargees reported having harmed themselves during their current period in prison (Indicator 1.4.10).

Male dischargees were similarly as likely to report intentional self-harm during their current period in prison (5.5%) as female dischargees (3.1%), and non-Indigenous dischargees (6.1%) were similarly as likely to do so as First Nations dischargees (4.0%).

Self-harm while in prison was most reported in prison dischargees aged 25–34 (7.7%) and least reported in dischargees aged 18–24 (2.0%).