Table 1. Demographical and neuropsychological characteristics of the studied sample.

	Controls	Patients	Controls vs patients
Number	39	39	ns
Male / Female	13 / 26	19 / 20	ns
Age [min–max]	70.2 (7.2) [59–87]	79.9 (4.7) [70–88]	p<10−7
Education level [min–max]	3.5 (0.7) [1–4]	2.6 (0.9) [1–4]	p<10−5
MMS (score/30) [min–max]	29.3 (0.7) [28–30]	23.9 (2.5) [20–29]	p<10−12

Values are presented as mean (SD). The two groups were compared using Student’s t-test (education level) or the Wilcoxon test (age and MMS). Education level: 1: no study degree, 2: “certificat d’études” (5 years of formal education), 3: “brevet” (9 years of formal education), 4: baccalaureate (12 years of formal education) or higher. MMS: Mini-mental state examination. Patients: AD at the MCI stage or at the mild dementia stage.

Min: minimum, max: maximum.