Table 3.

Cognitive test results for each group

MMSE	No DET	Mild DET	Moderate DET	Severe DET	Punctuation MMSE
Group A	69	5	0	0	27.4 (2.4) (22; 30)
Group B	91	18	1	0	26.4 (2.9) (16; 30)
Group C	84	11	0	0	26.6 (2.5) (19;30)
DSST	Correct symbols (n)		TMT	Time (s)	Errors (n)
Group A	49.2 (12.7) (17; 79)		Group A	77.1 (33.1) (33; 300)	1.9 (2.5) (0; 12)
Group B	42.9 (14.6) (0; 78)		Group B	92.4 (57.1) (34; 599)	2.2 (2.7) (0; 17)
Group C	38.7 (14.9) (9; 77)		Group C	105.8 (66.6) (33; 419)	2.6 (3.6) (0; 23)

MMSE, Mini Mental State Examination; DET, deterioration; DSST, Digit Symbol Substitution Test; TMT, Trail Making Test.