Table 1.

General characteristics of the studied samples.

	PsyCoLaus sample aged at least 65	Studied sample	p
n	1214	643
Age, years (m ± SD)	71.6 ± 4.7	71.5 ± 4.5	0.66
Gender, % women	57.9	57.7	0.93
Education level, % higher education	40.5	38.3	0.36
BMI, Kg/m2 (m ± SD)	26.9 ± 4.7	26.7 ± 4.5	0.38
CES-D score (m ± SD)	10.3 ± 8.2	10.0 ± 7.9	0.45

m, mean; SD, standard deviation; BMI, Body Mass Index; CES-D, Center for Epidemiologic Studies Depression Scale.