Table 1.

Matching by gender and age between study sample (SS) and a healthy community sample (HCS) from the Italian general population*.

STUDY SAMPLE				CONTROLS from community sample of the Italian general population*
Gender
	N		%	-	N		%
Female	82		54.3	Female	328		54.3
Male	69		45.7	Male	276		45.7
Total	151	100.0		Total	604		100.0
Age
N	mean	sd		N	mean	sd
151	63.14	11.548		604	63.31	11.718

Legend. N= frequency; %= percentage; sd= standard deviation

*[Carta et al., 2010]