Table 2 Neuropsychological features of patients with dementia with Lewy bodies, patients with Alzheimer’s disease and healthy elderly control subjects

FAB on scale of 18^a

17.3 (1.2)

15.3 (2.2)

15 (3.2)

H = 13.343, P = 0.001

HC > DLB and AD

FCSRT

 IR on scale of 16^a

15.8 (0.4)

14.8 (1.4)

13.5 (2)

H = 18.429, P < 0.000

HC > DLB and AD, DLB > AD

 FR on scale of 48^a

31.3 (3.9)

22.6 (7.9)

9.4 (7)

H = 36.616, P < 0.000

HC > DLB and AD, DLB > AD

 TR on scale of 48^a

47.3 (0.9)

43 (6.8)

25.5 (12.3)

H = 32.488, P < 0.000

HC > DLB and AD, DLB > AD

 CFR on scale of 16^a

12.6 (1.7)

8.5 (3.8)

3.3 (4)

H = 26.461, P < 0.000

HC > DLB and AD, DLB > AD

 CTR on scale of 16^a

15.9 (0.3)

14.8 (2)

8.8 (4.9)

H = 26.548, P < 0.000

HC and DLB > AD

DMS48

 Set 1,^a %

99 (2)

93 (6)

88 (11)

H = 13.752, P = 0.001

HC > DLB and AD

 Set 2,^a %

99 (1)

93 (7)

83 (10)

H = 19.771, P < 0.000

HC > DLB and AD

Rey-Osterrieth complex figure test^a

34.5 (1.6)

29.6 (7.9)

31.7 (4.2)

H = 6.088, P = 0.048

HC > DLB

VOSP

 Number localisation^a

10.1 (2.7)

8.2 (2.2)

8.3 (2.3)

H = 5.526, P = 0.063

 Cube analysis^a

10 (2.1)

9 (1.5)

7.9 (3.4)

H = 2.677, P = 0.262

TMT A^a

42.7 (13.9)

64.3 (27.7)

53.7 (15.3)

H = 9.09, P = 0.011

DLB > HC

TMT B^a

97.9 (34.1)

164.2 (89.8)

149.5 (73.5)

H = 8.994, P = 0.011

DLB > HC

DSST on scale of 19^a

11.4 (2.3)

7.7 (2.3)

10.3 (3)

H = 17.972, P < 0.000

HC > DLB

Digit span

 Direct^a

8.8 (2.2)

6.8 (1.9)

7.7 (2.6)

H = 4.499, P = 0.105

 Indirect^a

5.8 (1.8)

4.4 (1.5)

4.5 (1.4)

H = 7.781, P = 0.02

HC > DLB

Lexical evocation

 Formal^a

24.6 (8.6)

16 (7.7)

22.7 (7.1)

H = 11.814, P = 0.003

HC > DLB

 Semantic^a

37 (7.9)

23.7 (7.5)

21.6 (9.5)

H = 23.494, P < 0.000

HC > DLB and AD

DO80^a

79.6 (0.6)

77.1 (3.5)

71.2 (20.3)

H = 8.655, P = 0.013

HC > DLB and AD

Praxis

 Symbolic^a

4.9 (0.5)

4.7 (0.5)

5.4 (1.6)

H = 4.104, P = 0.128

 Action^a

9.9 (0.3)

9 (1.3)

9.4 (0.8)

H = 6.761, P = 0.034

HC > DLB

 Abstract^a

7.9 (0.5)

6.6 (1.7)

7.9 (0.3)

H = 14.780, P = 0.001

HC and AD > DLB