Executive function
| Executive function | Median score | Range | p Value | ||
|---|---|---|---|---|---|
| FTD | AD | FTD | AD | ||
| 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. | |||||
| AD, Alzheimer’s disease; FTD, frontotemporal dementia. | |||||
| No of correct answers | |||||
| Category fluency | 10 | 9 | 0 to 26 | 2 to 21 | 0.762 |
| Letter fluency | 4 | 7 | 0 to 18 | 1 to 29 | 0.016* |
| Weigl’s test /9 | 4 | 6 | 0 to 9 | 0 to 9 | 0.157 |
| Error types | |||||
| Letter fluency: repetitions | 0 | 0 | 0 to 3 | 0 to 4 | 0.451 |
| Letter fluency: rule violations | 0 | 0 | 0 to 3 | 0 to 3 | 0.096 |
| Category fluency: repetitions | 0 | 0 | 0 to 4 | 0 to 9 | 0.036† |
| Category fluency: rule violations | 0 | 0 | 0 to 1 | 0 to 4 | 0.785 |
| Per cent of subjects | |||||
| Perseveration on Weigl’s test | 44 | 29 | 0.117 | ||
| Dismantling on Weigl’s test | 33 | 15 | 0.031* | ||