Table 2.

Mean (standard deviation) sociodemographic and clinical characteristics of the participants.

	Raw score (SD)	Z score (SD)	Percentile (SD)
Sociodemographic characteristics
Age (years)	71.7 (9.0)	–	–
Sex (Male/Female)	13/2	–	–
Education (years)	14.3 (2.5)	–	–
General cognitive functioning
MoCA (/30)	24.3 (2.5)	−0.7 (1.0)	–
DRS (/144)	136.1 (4.9)	−0.1 (0.9)	–
Depressive symptoms
GDS (/30)	4.8 (3.8)	–	–
Episodic memory
RL/RI mean free recall 1, 2 and 3 (/16)	6.3 (1.8)	−1.7 (0.5)	–
RL/RI mean delayed free recall (/16)	7.2 (2.5)	−2.5 (1.5)	–
RL/RI mean total recall 1, 2 and 3 (/16)	37.0 (7.3)	–	6 (5.6)
RL/RI mean total delayed recall (/16)	13.4 (2.3)	–	6 (5.0)
3-min recall ROCFT (/36)	12.9 (6.1)	−0.5 (2.5)	–
Visuo-perception and visuo-construction
Copy score ROCFT (/36)	29.4 (5.1)	−1.2 (2.0)	–
Size-match subtest (BORB) (/30)	27.1 (2.2)	−0.1 (0.9)	–
Information processing speed
Coding subtest (WAIS-III)	52.1 (14.1)	0.1 (0.9)	–
Language and semantic memory
BNT total (/15)	12.9 (1.9)	−0.1 (1.3)	–
Phonemic fluency (T-N-P)	31.6 (7.3)	−0.8 (0.8)	–
Semantic fluency (animals)	15.5 (4.9)	−0.5 (1.0)	–
PPTT (/52)	49.9 (1.1)	–	–
Executive functions
Stroop D-KEFS, inhibition (s)	75.4 (27.2)	0.0 (1.2)	–
Stroop D-KEFS, switching (s)	72.1 (21.8)	0.4 (0.9)	–
Stroop D-KEFS, inhibition (errors)	2.5 (3.7)	0.0 (1.0)	–
Stroop D-KEFS, switching (errors)	4.0 (4.3)	−0.2 (1.2)	–

Note. Z scores and percentiles were obtained from age- and education-adjusted normative data. BNT, Boston Naming Test; BORB, Birmingham Object Recognition Battery; D-KEFS, Delis-Kaplan Executive Function System; DRS, Dementia Rating Scale; GDS, Geriatric Depression Scale; MoCA, Montreal Cognitive Assessment; PPTT, Pyramids and Palm Trees Test; RL/RI, Rappel libre/rappel indicé; ROCFT, Reu-Osterrieth Complex Figure Test; WAIS, Wechsler Adult Intelligence Scale.