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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Neurobiol Aging. 2014 Jan 13;35(7):1755–1768. doi: 10.1016/j.neurobiolaging.2014.01.008

Table 6.

Performance composite trajectories related to duration of disease

A. Performance differences B. Trajectory differences C. Rate of change with disease duration
Composite Score t p t p r t p
Verbal/Language 3.2387 0.0023 1.1846 0.2388 0.0157 −0.1026 0.9188
Executive Functions 1.1937 0.2390 0.8957 0.3726 0.0694 0.4507 0.6545
Learning/Memory 2.0223 0.0492 0.8399 0.4032 0.0430 0.2787 0.7818
Speed of Information 2.6558 0.0110 0.9810 0.3290 0.0570 −0.3787 0.7067
Motor Skills 0.3171 0.7527 −0.0625 0.9503 0.0962 −0.6408 0.5250
Total 2.4495 0.0184 0.9599 0.3394 0.0725 −0.4820 0.6322