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Table 2 Lewy body symptoms by final neuropathological diagnosis

From: Improving the identification of dementia with Lewy bodies in the context of an Alzheimer’s-type dementia

 

AD

DLB

Mixed AD+DLB

 

N = 19

N = 18

N = 22

Core and suggestive symptoms

 Cognitive fluctuations ever

5 (26%)

9 (50%)

8 (36%)

X = 2.23, df = 2, P = 0.33

 Complex visual hallucinations at any time

3 (16%)

17 (94%)

11 (50%)

X = 23.0, df = 2, P < 0.001

AD vs mixed, X = 5.31, df = 1, P = 0.02

DLB vs mixed, X = 9.30, df = 1, P < 0.01

 Complex visual hallucinations at baseline

1 (5%)

12 (67%)

3 (14%)

X = 20.86, df = 2, P < 0.01

AD vs mixed, X = 0.81, df = 1, P = 0.36

DLB vs mixed, X = 11.88, df = 1, P < 0.01

 Complex visual hallucinations emerging later

2 (11%)

5 (28%)

8 (36%)

X = 3.67, df = 2, P = 0.16

AD vs mixed, X = 3.69, df = 1, P = 0.055

DLB vs mixed, X = 0.33, df = 1, P = 0.564

 Parkinsonism at any time

4 (21%)

12 (67%)

10 (45%)

X = 7.83, df = 2, P = 0.02

AD vs mixed, X = 2.7, df = 1, P = 0.1

DLB vs mixed, X = 1.80, df = 1, P = 0.15

 Parkinsonism at baseline

1 (5%)

8 (44%)

5 (23%)

X = 7.86, df = 2, P = 0.02

AD vs mixed, X = 2.49, df = 1, P = 0.13

DLB vs mixed, X = 1.36, df = 1, P = 0.2

 Parkinsonism emerging later

3 (16%)

4 (22%)

5 (23%)

X = 0.36, df = 2, P = 0.84

 RBD at any time

4 (21%)

12 (67%)

7 (32%)

X = 7.83, df = 2, P = 0.02

AD vs mixed, X = 0.60, df = 1, P = 0.34

DLB vs mixed, X = 4.82, df = 1, P = 0.03

 RBD at baseline

1 (5%)

6 (33%)

0 (0%)

X = 11.69, df = 2, P < 0.01

AD vs mixed, X = 1.19, df = 1, P = 0.46

DLB vs mixed, X = 8.63, df = 1, P < 0.01

 RBD emerging later

3 (16%)

6 (33%)

7 (32%)

X = 1.83, df = 2, P = 0.4

 Neuroleptic sensitivity at any time

3 (16%)

2 (11%)

3 (14%)

X = 0.17, df = 2, P = 0.92

 Exposed to use of neuroleptic

7 (37%)

9 (50%)

12 (55%)

X = 1.35, df = 2, P = 0.51

Supportive symptoms

 Falls at any time

7 (37%)

9 (50%)

11 (50%)

X = 0.90, df = 2, P = 0.64

 Other hallucinations at any time

1 (5%)

2 (11%)

5 (23%)

X = 2.79, df = 2, P = 0.25

 Delusions at any time

3 (16%)

7 (39%)

6 (27%)

X = 2.79, df = 2, P = 0.25

 Depression at any time

10 (53%)

9 (50%)

6 (27%)

X = 3.30, df = 2, P = 0.19

 Anxiety at any time

11 (58%)

9 (50%)

11 (50%)

X = 0.32, df = 2, P = 0.85

 Behavioural disturbance at any time

11 (58%)

8 (44%)

12 (55%)

X = 0.73, df = 2, P = 0.70

  1. AD Alzheimer’s disease, DLB dementia with Lewy bodies, RBD REM sleep behaviour disorder