BMC Neurology

Table 3 Number of patients at risk and absolute risk difference (ARD). Number of ICU survivors at risk and absolute risk difference (ARD) A. for the general population, B-D. After grouping by age, E-J.By different clinical conditions or interventions. Survival is assessed up to 4 years after ICU-discharge. N: number, ARD: absolute risk difference, ND: non-delirium group, D: delirium group, COPD: chronic obstructive pulmonary disease

From: Delirium at the intensive care unit and long-term survival: a retrospective study

		Years from ICU discharge									p-value Log-rank test
		0	1		2		3		4
		N patients	N patients	ARD	N patients	ARD	N patients	ARD	N patients	ARD
A. General population	D	2’171	1’453	0.106	1’026	0.102	671	0.117	332	0.118	< 0.0001
A. General population	ND	7’433	5’616	0.106	3’913	0.102	2’562	0.117	1’396	0.118	< 0.0001
B. Patients 45 ≤ age ≤ 54 years	D	216	167	0.034	134	0.004	83	0.003	44	0.007	0.6071
B. Patients 45 ≤ age ≤ 54 years	ND	1’129	915	0.034	659	0.004	464	0.003	255	0.007	0.6071
C. Patients 55 ≤ age ≤ 64 years	D	448	316	0.063	219	0.073	143	0.082	66	0.073	0.0003
C. Patients 55 ≤ age ≤ 64 years	ND	1’829	1’385	0.063	971	0.073	622	0.082	341	0.073	0.0003
D. Patients ≥ 65 years	D	1’296	807	0.116	561	0.098	375	0.111	183	0.111	< 0.0001
D. Patients ≥ 65 years	ND	3’035	2’133	0.116	1416	0.098	901	0.111	490	0.111	< 0.0001
E. Mechanical ventilation	D	1’986	1’364	0.090	961	0.088	633	0.099	315	0.098	< 0.0001
E. Mechanical ventilation	ND	6’336	4’766	0.090	3’280	0.088	2’142	0.099	1’185	0.098	< 0.0001
F. Malignancies	D	214	97	0.165	49	0.138	22	0.150	5	0.106	< 0.0001
F. Malignancies	ND	1’262	759	0.165	415	0.138	216	0.150	64	0.106	< 0.0001
G. Acute respiratory failure	D	286	172	0.084	97	0.106	46	0.133	4	0.152	0.0002
G. Acute respiratory failure	ND	509	259	0.084	150	0.106	87	0.133	11	0.152	0.0002
H. COPD	D	193	111	0.052	63	0.037	31	0.059	8	0.061	0.178
H. COPD	ND	407	265	0.052	154	0.037	84	0.059	19	0.061	0.178
I. Dementia	D	66	33	0.097	21	0.134	8	0.136	2	0.136	0.201
I. Dementia	ND	46	24	0.097	15	0.134	8	0.136	3	0.136	0.201
J. Renal replacement therapy	D	361	201	0.096	139	0.082	89	0.126	50	0.140	0.018
J. Renal replacement therapy	ND	161	101	0.096	62	0.082	41	0.126	25	0.140	0.018

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