Table 2.
Mean (± SD) memory, non-memory, and non-cognitive measures by level of global memory self-rating
| Global self-rating of memory “for age” |
P-value |
Eta-squared (η2) |
|||
|---|---|---|---|---|---|
| “Excellent” (n = 46) | “Good” (n = 167) | “Fair” or `Poor” (n = 63) | |||
| Memory measures | |||||
| CERAD WLL total learning | 20.5 (4.9) | 19.8 (4.2) | 18.3 (4.1) | .021 | 2.8% |
| CERAD WLL delayed recall | 5.9 (2.9) | 5.6 (2.4) | 4.5 (2.7) | .004 | 3.9% |
| WMS-R Logical Memory I | 24.4 (7.9) | 22.4 (6.8) | 19.5 (7.4) | .001 | 4.7% |
| WMS-R Logical Memory II | 20.4 (8.7) | 18.2 (7.1) | 14.2 (8.2) | <.001 | 6.9% |
| Modified R-O figure immediate recall (24 points) | 16.3 (4.5) | 15.9 (4.1) | 14.1 (4.7) | .009 | 3.4% |
| Modified R-O figure delayed recall (24 points) | 14.6 (5.2) | 15.3 (4.2) | 13.2 (5.4) | .011 | 3.2% |
| Non-memory measures | |||||
| Trail Making A (seconds) | 40.5 (17.7) | 41.3 (20.0) | 43.8 (19.5) | >.5 | 0.4% |
| Trail Making B (seconds) | 112.9 (66.3) | 107.7 (61.2) | 120.0 (61.4) | >.4 | 0.6% |
| WAIS-R Digit Symbol | 46.2 (12.2) | 45.1 (10.9) | 41.2 (11.6) | .033 | 2.5% |
| Boston Naming Test | 54.9 (4.2) | 53.3 (5.1) | 52.5 (6.6) | .062 | 2.0% |
| Letter fluency (FAS) | 38.7 (12.1) | 36.7 (13.3) | 34.1 (10.9) | >.1 | 1.3% |
| Modified R-O figure copy (24 points) | 20.9 (2.2) | 20.6 (2.5) | 19.9 (2.7) | .088 | 1.8% |
| Non-cognitive measures | |||||
| Age, years | 73.9 (6.4) | 72.7 (5.7) | 74.2 (5.7) | >.1 | 1.4% |
| Education, years | 14.6 (2.8) | 14.0 (3.0) | 13.6 (2.9) | >.2 | 1.0% |
| mCES-D score† (0-20 points) | 1.8 (2.6) | 1.5 (2.2) | 2.9 (3.0) | .001 | 5.1% |
| Number prescription medications | 4.8 (3.0) | 5.4 (2.9) | 5.6 (3.1) | >.3 | 0.8% |
Note. After including mCES-D (depression) score and education as covariates in the univariate Analysis of Variance models, the pattern of significant memory self-rating effects on cognitive variables was unchanged except for Digit Symbol, which no longer significantly differed among memory self-rating groups (P = .181).
CERAD WLL = Consortium to Establish a Registry for Alzheimer's Disease Word List Learning Test; WMS-R Wechsler Memory Scale, Revised; R-O = Rey Osterrieth Figure; WAIS-R = Wechsler Adult Intelligence Scale, Revised; mCES-D = modified Center for Epidemiologic Studies Depression Scale.
Higher scores indicate a greater number of depression symptoms.