Table 3

 Memory

MemoryMedian scoreRangep Value
FTDADFTDAD
Bold type indicates that the item significantly changed the odds of one or other diagnosis: *FTD performance worse than AD; †AD performance worse than FTD.
Analyses were based on a minimum of 73 Alzheimer’s disease patients and 33 FTD patients.
‡Delayed recall is expressed as a percentage of immediate recall; figures are greater than 100% where the amount of information produced on delayed recall exceeds that produced on immediate recall.
AD, Alzheimer’s disease; FTD, frontotemporal dementia.
No of correct answers
Digit span forwards660 to 62 to 90.954
Digit span backwards330 to 100 to 70.601
Story: free recall 5 2 0 to 10 0 to 10 0.007
Story: cued recall 7 3 0 to 10 0 to 10 0.001
Story: delayed free recall0.000
Story: delayed cued recall0.000
Story: % retained with delay (free) 100 0 0 to 175%0 to 400%0.000
Story: % retained with delay (cued) 97 50 0 to 160%0 to 400%0.001
Celebrity recall (/9) 4 1 0 to 8 0 to 9 0.000
Error types Per cent of subjects
Intrusions in story recall 6 31 0.012
Confabulations in story recall 24 8 0.038*
Misconstruction in story recall 50 9 0.000*