Clinical ch c aract c eristics of populat a ion refe f rred to an

/ nxiety t and depression 4%, other pathologies 2%. The patients in group 1 were significantly older (73.6±8.5 vs 72.2±9.6 yrs; p<0.0001) and had significantly worse cognitive scores at MMSE (22.5±6.7 vs 23.1±5.5; p<0.009) with respect to the patients in group 2. Of the total population, 1451 patients were diagnosed as having AD, according to the NINCDS-ADRDA criteria (7). The AD patients were also sub