Factors affecting length of stay in forensic hospital setting: need for therapeutic security and course of admission

Table 6 Historical-Clinical-Risk-20 (HCR-20 V2) scale items and length of stay to discharge or end of study

SCORE	0			1			2			Log rank Mantel-Cox
Item	N	Median	SE	n	Median	SE	n	Median	SE	X ²	p
H1: previous violence	14	14	1.9	32	45	10.6	194	75	8.6	22.9	0.001
H2: young age at first violent incident	36	48	4.8	105	79	16.8	96	61	5.9	8.4	0.015
H3: relationship instability	23	59	25.6	50	69	4.7	166	64	7.1	1.6	0.443
H4: employment problems	27	118	84.8	49	76	6.9	164	60	5.4	4.0	0.134
H5: substance misuse problems	37	60	31.6	17	150	169.4	184	64	4.5	6.2	0.044
H6: major mental illness	17	46	24.7	26	14	6.4	197	71	5.2	14.4	0.001
H7: psychopathy (OMITTED)	–	–	–	–	–	–	–	–	–	–	–
H8: early maladjustment	48	55	4.0	62	85	27.1	124	64	6.4	2.4	0.306
H9: personality disorder	71	102	44.2	73	66	9.0	82	49	6.3	17.9	0.001
H10: prior supervision failure	52	59	7.2	37	147	60.8	150	64	6.1	2.5	0.282
C1: lack of insight	11	53	24.8	58	57	5.1	169	67	6.1	1.1	0.577
C2: negative attitudes	81	64	9.9	63	76	14.7	96	57	8.8	7.4	0.024
C3: active symptoms of major mental illness	44	48	6.6	59	58	5.5	137	72	9.4	3.7	0.160
C4: impulsivity	96	75	15.2	57	67	9.7	87	56	5.9	3.2	0.192
C5: unresponsiveness to treatment	33	53	4.6	103	67	5.1	103	76	15.2	4.3	0.115
R1: plans lack feasibility	24	64	13.5	39	54	3.1	176	70	6.6	2.1	0.353
R2: exposure to destabilisers	3	46	12.2	17	41	18.5	219	69	6.2	2.9	0.227
R3: lack of personal support	20	59	13.4	73	62	3.4	146	70	8.2	0.15	0.929
R4: non-compliance with remediation attempts	15	46	27.7	30	67	4.8	194	64	6.1	0.25	0.884
R5: stress	4	21	16.0	18	55	8.5	217	67	5.1	1.04	0.596

Calculated from Kaplan-Meyer survival analysis. Medians, standard errors and Log rank Mantel-Cox X ², df = 2, n = 187

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