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Table 3 Distribution of predictor variables by importance after forward selection

From: Factors and predictors of length of stay in offenders diagnosed with schizophrenia - a machine-learning-based approach

variableshort length-of-stay
n/N (%)
long length-of-stay
n/N (%)
p-value*
1. Victim injured severly/fataly18/60 (30)39/68 (68.4)0.002
2. Index crime: (attempted) homicide19/72 (26.4)33/71 (46.5)0.015
3. Index crime: sexual abuse of children0/72 (0)3/71 (4.2)0.120
4. Selfharming during current hospitalization10/70 (14.3)6/71 (37.5)0.301
5. Index crime: threat, coercion27/72 (37.5)22/71 (31)0.482
6. Index crime: property crime with violence3/72 (4.2)4/71 (4.9)0.719
7. PANSS at admission (mean, SD)23 (11.89)25.61 (12.90)0.277
8. Experience of poverty in childhood/adolescence25/63 (39.7)22/62 (35.5)0.713
9. Hallucinations described in past psychiatric history40/72 (55.6)46/71 (64.8)0.307
  1. Note. SD Standard deviation
  2. * p-value derived from Fisher’s exact test; p-value variables “PANSS at admission” derived from Mann-Whitney-U-test