. Author manuscript; available in PMC: 2010 May 1.

Published in final edited form as: Neuropsychology. 2009 May;23(3):337–346. doi: 10.1037/a0014995

Table 4.

Longitudinal Assessment: Between-Groups Follow-Up Analysis

Test
Digits Forward	PNFA < AD, t(286) = 2.67, p <.008 CBD < SemD, t(286) = 2.39, p <.018	PNFA < CBD, t(286) = 3.21, p <.001	PNFA < SOC/EXEC, t(286) = 2.37, p <.020
Digits Backwards	SemD < CBD, t(264) = 2.83, p < .005 PNFA < SemD, t(264) = 2.28, p < .023	SemD < AD, t(264) = 1.77, p < .078	CBD < AD, t(264) = 1.87, p <.063
Letter fluency (FAS)	PNFA < AD, t(110) = 2.58, p < .011	PNFA < CBD, t(110) = 2.53, p < .013	PNFA < SemD, t(110) = 2.48, p < .014
BNT	SemD < AD, t(333) = 2.90, p < .004 SemD < SOC/EXEC, t(333) = 3.81, p < .001	SemD < CBD, t(333) = 3.71, p < .001	SemD < PNFA, t(333) = 4.28, p < .001
“Animal” fluency	AD < CBD, t(346) = 2.37, p <.018	AD < SOC/EXEC, t(346) = 2.47, p <.014
Figure Copy Test	CBD < AD, t(328) = 6.50, p < .001 CBD < SOC/EXEC, t(328) = 5.76, p < .001	CBD < SemD, t(328) = 6.96, p < .001 AD < SemD, t(328) = 2.86, p < .005	CBD < PNFA, t(328) = 5.87, p < .001 SOC/EXEC < SemD, t(328) = 1.99, p < .047

Note. AD = Alzheimer’s disease; SOC/EXEC = social comportment/dysexecutive; PNFA = primary nonfluent aphasia; SemD = semantic dementia; CBD = corticobasal degeneration; BNT = Boston Naming Test.