Correction: The relationship of acute delirium with cognitive and psychiatric symptoms after stroke: a longitudinal study

Table 2 (Correct) Group differences in demographics and clinical characteristics for patients with and without delirium

	Delirium (n = 13)	Non-delirious (n = 126)	t/ x²	p
Age, M (SD)	79.5 (6.0)	70.6 (13.7)	4.34	0.000**
Years of education, M (SD)	12.5 (3.5)	13.9 (3.4)	-1.43	0.15
Gender, n female (%)	6 (46%)	62 (49%)	0.04	0.84
NIHSS at baseline¹, M (SD)	4.5 (4.6)	2.8 (3.8)	1.35	0.17
MoCA at baseline², M (SD)	20.0 (2.2)	25.1 (4.7)	-3.10	0.002**
Premorbid dementia, n (%)	0	2	0.19	0.91
Complications³ > 0, n (%)	7 (54.6)	27 (21.4)	-2.15	0.05
Charlson Comorbidity Index (CCI), M (SD)	4.1 (1.3)	3.6 (1.9)	-1.20	0.24
Global Deterioration Scale (GDS) < 3⁴
Pre-stroke, n (%)	12/12 (100%)	124/126 (98%)	0.19	0.92
3 months, n (%)	2/10 (20%)	91/120 (76%)	14.1	0.001**
18 months, n (%)	2/9 (22%)	71/120 (70%)	4.7	0.032*
36 months, n (%)	2/6 (33%)	70/84 (83%)	8.7	0.026*
Moderate to severe aphasia⁵
Baseline, n (%)	2/13 (15%)	8/126 (6%)	1.44	0.27
3 months, n (%)	0/10	4/120 (3%)	0.34	0.80
18 months, n (%)	0/8	3/102 (3%)	0.24	0.89
36 months, n (%)	0/6	0/83	0	1.0

Note.¹Higher values indicating more severe stroke symptoms. NIHSS at baseline done at day 1 of admission to hospital. ²Lower values indicating poorer global cognitive function. MoCA assessment at baseline was done either at discharge or seven days after admittance for patients with longer hospital stay. ³Infections, seizures, neurological progression and falls registered during hospitalization. ⁴Values < 3 indication no to very mild cognitive decline. Values > 3 indicating potential dementia. ⁵Amount of patients with a level of aphasia causing interference with conversation, indicated by the value 2 (moderate) or 3 (severe) in the NIHSS item measuring aphasia. ** indicating p-level < 0.01 * indicating p-level < 0.05

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