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. 2013 Jan 2;8(1):e53148. doi: 10.1371/journal.pone.0053148

Table 1. Characteristics of the StD, and healthy controls.

Characteristics StD NC P value
N (M/F) 19 (7/12) 18 (8/10) 0.64a
Age, years 66.5±5.7 66.4±3.9 0.96b
Education, years 13.2±2.7 13.5±2.8 0.75b
MMSE 28.3±1.6 28.8±1.5 0.26b
CES-D 16.4±4.9 1.1±1.6 <0.01b
a

The P value for gender distribution was obtained by chi-square test.

b

The P values were obtained by t-test.