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

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

 

Delirium (n = 13)

Non-delirious (n = 126)

t/ x2

p

Age, M (SD)

79.5 (6.0)

70.6 (13.7)

4.34

.000**

Years of education, M (SD)

12.5 (3.5)

13.9 (3.4)

−1.43

.15

Gender, n female (%)

6 (46%)

62 (49%)

.04

.84

NIHSS at baslinea, M (SD)

4.5 (4.6)

2.8 (3.8)

1.35

.17

MoCA at baselineb, M (SD)

20.0 (2.2)

25.1 (4.7)

−3.10

.002**

Premorbid dementia, n (%)

0

2

.19

.91

Complicationsc > 0, n (%)

7 (54.6)

27 (21.4)

−2.15

.05

Charlson Comorbidity Index (CCI), M (SD)

4.1 (1.3)

3.6 (1.9)

−1.20

.24

Global Deterioration Scale (GDS) < 3d

 Pre-stroke, n (%)

12 (92%)

124 (98%)

.19

.66

 3 months, n (%)

4 (30%)

5 (4%)

14.0

.003**

 18 months, n (%)

4 (31%)

11 (9%)

5.9

.024*

 36 months, n (%)

3 (23%)

10 (8%)

3.2

.079

Moderate to severe aphasiae

 Baseline, n (%)

3 (23%)

19 (15%)

.57

0.57

 3 months, n (%)

0

4 (3%)

.42

0.68

 18 months, n (%)

0

3 (2%)

.32

0.81

 36 months, n (%)

0

0

0

1.0

  1. aHigher values indicating more severe stroke symptoms. NIHSS at baseline done at day 1 of admittance to hospital
  2. bLower values indicating poorer global cognitive function. MoCA assessment at baseline was done either at discharge or 7 days after admittance for patients with longer hospital stay
  3. cInfections, seizures, neurological progression and falls registered during hospitalization
  4. dValues < 3 indication no to very mild cognitive decline. Values > 3 indicating potential dementia
  5. eAmount 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
  6. **indicating p-level < .01
  7. *indicating p-level < .05