Table 2.
Correlations between FAQ and predictors.
| Group | All subjects (n=793) |
NC (n=228) |
MCI (n=387) |
AD (n= 178) |
||||
|---|---|---|---|---|---|---|---|---|
| r | p | r | p | r | p | r | p | |
|
Age |
0.02 | 0.64 | 0.08 | 0.23 | 0.002 | 0.97 | 0.07 | 0.33 |
|
Education |
−0.11 | 0.002 | 0.02 | 0.75 | 0.02 | 0.68 | 0.03 | 0.74 |
|
MMSE |
−0.63 | <0.0001 | −0.02 | 0.77 | −0.05 | 0.33 | −0.33 | <0.0001 |
|
RAVLT delayed recall |
−0.46 | <0.0001 | −0.01 | 0.85 | −0.22 | <0.0001 | −0.12 | 0.11 |
|
GDS |
0.13 | 0.0001 | 0.08 | 0.21 | 0.02 | 0.62 | 0.01 | 0.92 |
|
NPI-Q Depression |
0.23 | <0.0001 | 0.02 | 0.73 | 0.20 | <0.0001 | −0.02 | 0.81 |
|
NPI-Q Apathy |
0.38 | <0.0001 | 0.10 | 0.13 | 0.23 | <0.0001 | 0.29 | <0.0001 |
|
TMT-A |
0.39 | <0.0001 | 0.11 | 0.11 | 0.18 | 0.0003 | 0.15 | 0.05 |
|
TMT-B |
0.44 | <0.0001 | 0.05 | 0.47 | 0.17 | 0.0006 | 0.13 | 0.07 |
|
TMT-B-A |
0.38 | <0.0001 | 0.02 | 0.77 | 0.14 | 0.006 | 0.09 | 0.25 |
| DSym | −0.45 | <0.0001 | −0.10 | 0.12 | −0.22 | <0.0001 | −0.15 | 0.04 |
AD (Alzheimer’s disease), DSym (Digit Symbol), FAQ (Functional Activities Questionnaire), GDS (Geriatric Depression Scale), MCI (mild cognitive impairment), MMSE (Mini-Mental State Examination), NC (normal control), NPI-Q Apathy (Neuropsychiatric Inventory brief questionnaire form, Apathy item), NPI-Q Depression (Neuropsychiatric Inventory brief questionnaire form, Depression item), RAVLT (Rey Auditory Verbal Learning Test), TMT-A (Trailmaking Test A), TMT-B (Trailmaking Test B), TMT-B-A (Trailmaking Test B minus Trailmaking Test A).