Table 1.

Demographic characteristics of the study population at baseline (n = 650)

Age, years	71.1±4.1
Sex female	338 (52.0)
Education
Primary	154 (23.7)
Secondary	344 (52.9)
Higher	152 (23.4)
MMSE score (median, IQR)	28 (27; 29)
Body mass index	27.6±3.7
Systolic blood pressure, mm Hg	150±20.6
Diabetes mellitus, yes	78 (12.0)
Cholesterol ratio	3.74±1.10
Smoking
Never	217 (33.4)
Former	380 (58.4)
Current	53 (8.2)
Alcohol
Never	89 (13.7)
Light drinker	457 (70.3)
Above average	104 (16.0)

Unless stated differently values are means and standard deviations for continuous variables or numbers and percentages (in parentheses) for categorical variables. IQR, interquartile range; MMSE, Mini-Mental State Examination.