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. 2014 Nov 11;2:e667. doi: 10.7717/peerj.667

Table 2. Questionnaire score comparison of means for those presenting with self-harm.

Sample mean Presented with self-harm
Yes
N = 82
No
N = 98
Questionnaire/scale Mean Mean SD Mean SD
Beck hopelessness scale 13.2 * 12.1 6.1 * 14.3 4.9
DAST-10 2.7 2.5 3.1 2.7 3.1
CAGE 1.5 1.4 1.6 1.4 1.6
SAD PERSONS 4.4 4.5 1.7 4.2 1.6
Manchester self-harm rule N/A 0.85 0.4 0.88 0.33
Brief Symptom Inventory Mean Mean SD Mean SD
Global severity index 2.4 * 2.2 1.0 * 2.5 0.7
Positive symptom distress index 2.9 * 2.8 0.7 * 3.0 0.6
Positive symptom total 37.0 * 34.1 17.5 * 39.4 15.0
Anxiety 2.5 * 2.3 1.2 * 2.6 1.0
Depression 3.1 * 2.9 1.1 * 3.3 0.7
Hostility 2.1 ** 1.8 1.2 ** 2.3 1.1
interpersonal sensitivity 2.6 * 2.4 1.2 * 2.7 0.3
Obsessive compulsive 2.6 * 2.2 1.2 * 2.8 0.9
Paranoid ideation 2.0 1.9 1.2 2.1 1.0
Phobic anxiety 1.8 * 1.6 1.3 * 2.0 1.2
Psychoticism 2.3 2.1 1.1 2.4 0.9
Somatization 1.9 1.7 1.2 2.0 1.0
Barratt impulsiveness score Mean Mean SD Mean SD
Total score 76.4 74.4 14.9 78.0 12.5
Attention 12.4 11.9 3.2 12.7 3.4
Attentional impulsiveness 19.9 * 19.0 4.8 * 20.7 4.5
Cognitive complexity 13.6 13.3 2.7 12.9 2.7
Cognitive instability 7.6 ** 7.1 2.4 ** 8.0 2.0
Motor 17.6 17.8 4.5 17.5 4.4
Motor impulsiveness 27.2 27.1 6.2 27.5 5.8
Non-planning impulsiveness 29.3 28.4 6.1 29.8 5.7
Perseverance 9.6 9.2 2.5 10.0 2.3
Self-control 15.6 15.1 4.1 15.9 3.8

Notes.

*

F statistic p-value <0.05.

**

F statistic p-value <0.01.

***

F statistic p-value <0.001.