Table 1: General and Clinical Characteristic of Studied Subjects (Mean ± SD)

Active Sham
N 11 12
Age (years) 58.3 ± 12.1 52.4 ± 11.5*
Formal education (years) 6.3 ± 5.2 8.9 ± 4.4*
Economically actives (%) 27.3 50*
Duration of widespread pain (months) 9.9 ± 11.8 6.4 ± 10.2*

* p<0,05.