Table 3.
Means and standard deviations of screening tests by race, dementia status, and CDR rating
| Dementia status | CDR rating | Clock | OT | IQCODE | MIS | AF | FCSRT | |
|---|---|---|---|---|---|---|---|---|
| African Americans | No dementia | CDR | 13.9 | 1.15* | 3.04 | 7.5 | 14.7 | 32.8 |
| 0 | 1.5 | 1.49 | 0.12 | 0.8 | 4.6 | 5.8 | ||
| CDR | 12.8 | 1.69* | 3.22 | 6.5 | 12.4 | 28.4* | ||
| 0.5 | 3.0 | 2.1 | 0.23 | 1.5 | 4.1 | 6.2 | ||
| Dementia | CDR | 9.4* | 4.07* | 3.40 | 5.1 | 8.6* | 18.9 | |
| 0.5 | 4.1 | 4.8 | 0.24 | 2.4 | 3.5 | 6.6 | ||
| CDR | 9.5 | 4.00 | 4.0 | 3.5 | 7.0 | 18.4 | ||
| 1 | 3.3 | 1.22 | 0.43 | 3.5 | 3.3 | 12.0 | ||
| CDR | 10.7 | 4.50 | 4.9 | 0.3 | 9.7 | 2.3 | ||
| 2 | 3.8 | .71 | 0.13 | 0.6 | 2.9 | 3.2 | ||
| Caucasians | No dementia | CDR | 13.8 | .55* | 3.04 | 7.4 | 16.2 | 31.2 |
| 0 | 1.7 | 1.20 | 0.10 | 0.8 | 4.4 | 5.8 | ||
| CDR | 13.0 | .97* | 3.25 | 6.4 | 13.7 | 25.0* | ||
| 0.5 | 2.7 | 1.50 | 0.31 | 1.6 | 5.0 | 6.8 | ||
| Dementia | CDR | 12.9* | 1.85* | 3.65 | 5.0 | 12.9* | 22.1 | |
| 0.5 | 2.8 | 1.1 | 0.72 | 2.3 | 4.9 | 6.2 | ||
| CDR | 9.7 | 2.43 | 4.06 | 2.0 | 8.2 | 9.2 | ||
| 1 | 3.5 | 2.9 | 0.51 | 2.8 | 3.5 | 6.9 | ||
| CDR | 5.7 | CND | 4.46 | 1.7 | 9.0 | 6.7 | ||
| 2 | 5.1 | 0.40 | 0.6 | 5.6 | 5.9 |
Note. OT = Oral Trails; IQCODE = Informant Questionnaire on Cognitive Decline in the Elderly; MIS = Memory Impairment Screen; AF = Animal Fluency; FCSRT = Free and Cued Selective Reminding Test.
*
Significant pair-wise comparisons by race, dementia status, and CDR rating ( p < .05, two-tailed).