Table 2.
CERAD-NB subtests with maximum scores, mean scores, standard deviations, minimum and maximum scores for FTLD and AD groups and group-wise comparisons of the differences
| CERAD-NB subtest (maximum score) | FTLD, mean±SD (range) | n | AD, mean±SD (range) | n | t value1 (d.f.) | p (2-tailed) | Cohen's d value1 |
|---|---|---|---|---|---|---|---|
| Verbal Fluency (animals) | 11.8±5.6 (1–25) | 89 | 14.0±5.7 (2–26) | 90 | 0.0051 | ||
| Boston Naming Test (15) | 9.9±3.5 (1–15) | 88 | 10.5±3.1 (1–15) | 90 | 1.15 (176) | 0.251 | −0.173 |
| MMSE (30) | 22.6±4.5 (9–30) | 93 | 22.7±4.0 (8–30) | 88 | 0.11 (179) | 0.913 | −0.016 |
| Word List Learning (30) | 13.5±5.7 (0–27) | 94 | 13.8±4.9 (0–26) | 90 | 0.9291 | ||
| Constructional Praxis (11) | 8.7±2.2 (2–11) | 79 | 8.7±2.1 (4–11) | 89 | 0.15 (166) | 0.880 | −0.024 |
| Word List Delayed Recall (10) | 3.6±2.2 (0–10) | 93 | 2.5±2.0 (0–8) | 89 | −3.53 (180) | 0.001 | 0.524 |
| Word List Delayed Recall Savings, % (100) | 61.6±28.7 (0–100) | 91 | 42.7±30.8 (0–100) | 88 | −4.25 (177) | ≤0.001 | 0.634 |
| Word List Recognition (20) | 16.5±3.3 (1–20) | 87 | 16.1±2.7 (8–20) | 90 | −0.84 (175) | 0.400 | 0.126 |
| Word List Discriminability (10) | 6.6±3.0 (0–10) | 80 | 6.1±2.7 (0–10) | 88 | −1.23 (166) | 0.222 | 0.189 |
| Word List Recognition, % (100) | 82.4±16.6 (5–100) | 87 | 80.5±13.5 (40–100) | 90 | −0.84 (175) | 0.400 | 0.127 |
| Total Recall (30) | 20.1±5.1 (1–30) | 86 | 18.6±4.1 (8–28) | 89 | 0.0101 | ||
| Constructional Praxis: Delayed Recall (11) | 5.6±3.3 (0–11) | 77 | 3.9±3.2 (0–11) | 89 | −3.32 (164) | 0.001 | 0.515 |
| Constructional Praxis: Savings, % (100) | 61.0±33.0 (0–100) | 77 | 43.9±34.5 (0–100) | 89 | −3.25 (164) | 0.001 | 0.506 |
| Clock Drawing (6) | 3.5±2.0 (0–6) | 91 | 3.7±2.1 (0–6) | 90 | 0.86 (179) | 0.391 | −0.127 |
| Memory Total Score (41) | 25.5±7.4 (1–39) | 72 | 22.5±6.3 (10–39) | 88 | 0.0031 | ||
| Memory Index, % (100) | 63.3±23.6 (0–100) | 67 | 49.9±22.4 (0–93) | 86 | 0.0011 | ||
| Total Score (100) | 54.1±16.8 (14–92) | 68 | 55.5±14.9 (15–95) | 88 | 0.6581 |
1
The t test was not appropriate. The Mann-Whitney U test was used because values were not normally distributed.