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Table 2 Self-harm histories by offender group

From: Self-harm and suicidality among three subgroups of male sex offenders: results from an Australian prisoner cohort

  Total Sample
(n = 2114)
ChildSO
(n = 77)
AdultSO
(n = 160)
PolySO
(n = 43)
Violent
(n = 1269)
Non-sexual non-violent
(n = 552)
X2 p (Φ/ ΦC)
Ever self-harmed
 0 No 86.8% 89.2% 85.7% 0 84.7% 90.3% 17.000** .002 (.09)
 1 Yes 13.2% 10.8% 14.3%   15.3% 9.7%   
Number of times        7.180+ .066 (.17)
 1 Once 44.7% 57.1% 52.4% 39.3% 58.8%   
 2 Twice or more 55.3% 42.9% 47.6% 60.7% 41.2%   
Self-harmed in prison
 0 No 71.5% 57.1% 71.4% 72.4% 70.6% .798 .850 (.06)
 1 Yes 28.5% 42.9% 28.6%   27.6% 29.4%   
Planned self-harm
 0 No 60.3% 57.1% 47.4% 61.6% 61.2% 1.496 .683 (.08)
 1 Yes 39.7% 42.9% 52.6%   38.4% 38.8%   
Method of last self-harm        21.943* .038 (.17)
 1 Choke-inducing behaviours 3.1% 0 19.0% 1.7% 2.0%   
 2 Impact with object 15.8% 14.3% 9.5% 16.7% 15.7%   
 3 Overdose or poisoning 4.2% 0 0 4.4% 5.9%   
 4 Use of an object 73.7% 85.7% 66.7% 74.4% 72.5%   
 5 Other 3.1% 0 4.8% 2.8% 3.9%   
More likely to self-harm in prison than community
 0 No 69.0% 57.1% 71.4% 68.4% 71.4% 3.475 .747 (.12)
 1 Yes 31.0% 42.9% 28.6%   31.6% 28.6%   
  1. The information in this table is based the self-reported survey data. The sample size in this table reflect the number of participants who were able to be coded on each item. Some responses could not be coded because of the amount and quality of the information. The sample sizes ranged from ChildSOs: 31–77; AdultSOs: 69–160; PolySOs: 21–43; Violent: 523–1269; Non-sexual non-violent offenders: 232–552
  2. +p < .10, * p < .05, **p < .01