Table 4 Comparison of performance in neuropsychological subtests between patients without and with dementia.

	Patients without dementia, n = 30	Patients with dementia, n = 12	p
WAIS‐R
Verbal information	3/29 (10%)	2/12 (17%)	0.62
Digit span	1/29 (3%)	3/12 (25%)	0.068
Similarities	1/30 (3%)	1/12 (8%)	0.49
Vocabulary	0/14 (0%)	3/5 (60%)	0.01*
Block design	3/27 (11%)	5/11 (45%)	0.031*
Grober‐Buschke
Immediate cued recall	4/21 (19%)	3/7 (43%)	0.32
Free recall (sum of	2/21 (10%)	6/7 (86%)	0.00048*
the 3 recalls)
Cued recall (sum of	0/21 (0%)	2/7 (29%)	0.056*
the 3 recalls)
Recognition	0/20 (0%)	3/7 (43%)	0.012*
Delayed free recall	7/21 (33%)	6/7 (86%)	0.029*
Delayed cued recall	0/21 (0%)	2/7 (29%)	0.056
PM38/47
Percentile	3/29 (10%)	6/12 (50%)	0.011*
Rey's figure
Copy	4/29 (14%)	6/12 (50%)	0.04*
Memory	12/29 (41%)	7/12 (58%)	0.49
Wechsler memory scale
Mental control	4/15 (27%)	4/8 (50%)	0.37
Logical memory	0/14 (0%)	3/8 (38%)	0.036*
Digit span	0/16 (0%)	1/9 (11%)	0.36
Visual reproduction	1/14 (7%)	3/8 (38%)	0.12
Paired words	0/14 (0%)	2/5 (40%)	0.058
TMT
Time A	4/29 (14%)	5/12 (42%)	0.093
Errors A	3/29 (10%)	6/12 (50%)	0.011*
Time B	15/29 (52%)	8/12 (67%)	0.5
Errors B	10/29 (34%)	8/12 (67%)	0.087
Verbal fluency
Semantic fluency	9/29 (31%)	10/12 (83%)	0.0047*
Letter fluency	5/28 (18%)	8/12 (67%)	0.0075*
Wisconsin
Completed criteria	2/28 (7%)	4/10 (40%)	0.031*
Percentage of errors	18/25 (72%)	9/10 (90%)	0.39
MADRS (threshold	3/28 (11%)	3/12 (25%)	0.34
value >22)

*p<0.05.