Table 4.

Cognitive characteristics of patients and controls: Mean (SD)

	naPPA	svPPA	lvPPA	bvFTD	Controls
Cognitive measures
MMSE, Time 1	23.6 (6.2)*	25.0 (3.2)*	25.3 (4.2)*	26.7 (2.6)*	29.1 (1.1)
MMSE, Time 2	18.7 (9.3)*#	15.8 (6.0)*#	20.5 (7.3)*#	24.9 (4.1)*#
BNT, Time 1	25.0 [1]	6.4 (4.8) [8]*	21.2 (8.7) [12]*	23.0 (6.4) [10]*	27.9 (2.5) [1]
BNT, Time 2	12.0 (15.6) [2]*	5.1(8.5) [7]*#	17.1 (10.0) [11]*#	20.1 (8.0) [11]*
FDS, Time 1	43 (1.6) [6]*	5.6 (2.0)	4.1 (4.4)*	7.0 (1.1) [11]	7.2 (1.1) [17]
FDS, Time 2	3.9 (1.7) [8]*	4.2 (2.6) [9]*	3.7 (1.8) [13]*	6.8 (1.0) [12]
RDS, Time 1	2.3 (1.4) [6]*	4.0 (1.5)*	3.3 (0.8)*	4.7 (0.8) [11]	5.7 (1.4) [18]
RDS, Time 2	2.2 (1.2) [8]*	2.2 (1.6) [9]*#	2.6 (1.4) [13]*	4.2 (1.3) [12]*
Animal naming, Time 1	7.0 (0.0) [2]*	7.9 (4.4) [8]*	11.7 (4.8) [13]*	11.8 (5.1) [11]*	19.2 (5.7) [23]
Animal naming, Time 2	6.0 (2.6) [3]*	3.9 (4.7) [7]*	8.1 (5.5) [12]*#	8.4 (4.6) [11]*
FAS, Time 1	17.2 (10.0) [5]*	24.0 (11.0) [10]*	21.7 (12.7) [12]*	29.0 (13.2) [11]*	41.8 (10.6) [23]
FAS, Time 2	11.8 (9.4) [4]*	11.58 (9.4) [8]*#	17.2 (12.0) [12]*	23.0 (13.2) [13]*

Notes:

^*differs from Controls, p<.01

^#differs from corresponding Time 1, p<.05

Numbers of participants for whom scores were available are given in brackets if less than the total; BNT = Boston Naming Test; FDS = Forward Digit Span; RDS = Reverse Digit Span; FAS = letter-guided fluency for F, A, S