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Table 4 Probability of recidivism according to four risk categories derived by the random survival forest prediction model and three different cut-off values

From: Predicting general criminal recidivism in mentally disordered offenders using a random forest approach

Risk Without recidivism With recidivism p (recidivism)  
(N = 131) (N = 128)
Low (%) 76 (58) 6 (5) 0.073 95% specificity
Moderate (%) 31 (24) 11 (9) 0.262 50% specificity & 50% sensitivity
High (%) 18 (14) 35 (27) 0.660
Very high (%) 6 (05) 76 (59) 0.927 95% sensitivity