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Table 3 SAPROF, HCR-20, and HCR-20-SAPROF scores and the occurrence of violence

From: Strength-based assessment for future violence risk: a retrospective validation study of the Structured Assessment of PROtective Factors for violence risk (SAPROF) Japanese version in forensic psychiatric inpatients

  6 months 12 months
Number 95 95
 Interpersonal violence 9 13
 Property destruction 2 4
 Sexual violence 0 0
  1. T tests were calculated to compare group means
  2. aOne participant’s intelligence could not be evaluated because of the patient’s refusal to take an IQ test, and one participant did not take any medications, so the number of participants contributing to the mean SAPROF internal and motivational scores in the nonviolent group was 83 at 6 months and 77 at 12 months, while that contributing to the mean SAPROF total score in the nonviolent group was 82 at 6 months and 76 at 12 months
  6 months 12 months
Violence Yes No P Yes No P
 Number 11 84a   17 78a  
SAPROF total (SD) 12.1 (1.9) 17.4 (4.1) < 0.001 12.7 (2.3) 17.6 (4.1) < 0.001
 Internal (SD) 2.0 (0.9) 4.0 (1.8) < 0.001 2.1 (1.0) 4.1 (1.8) < 0.001
 Motivational (SD) 3.8 (1.8) 6.4 (2.2) < 0.001 4.2 (1.6) 6.5 (2.2) < 0.001
 External (SD) 6.3 (0.5) 7.0 (0.9) 0.015 6.4 (0.5) 7.0 (0.9) 0.006
 Final judgment (SD) 1.8 (0.8) 2.9 (0.9) < 0.001 1.9 (0.7) 3.0 (0.9) < 0.001
HCR-20 (SD) 24.7 (4.3) 18.6 (6.4) 0.003 22.2 (5.4) 18.7 (6.5) 0.045
HCR-20-SAPROF (SD) 12.6 (3.9) 1.3 (9.1) < 0.001 9.5 (6.1) 1.1 (9.3) < 0.001
  1. T tests were calculated to compare group means
  2. aOne participant’s intelligence could not be evaluated because of the patient’s refusal to take an IQ test, and one participant did not take any medications, so the number of participants contributing to the mean SAPROF internal and motivational scores in the nonviolent group was 83 at 6 months and 77 at 12 months, while that contributing to the mean SAPROF total score in the nonviolent group was 82 at 6 months and 76 at 12 months