Table 4.
Number of answers in cognitive tests
| Item | Numerical item | Group | Baseline |
Week 4 |
Week 8 |
p (Inter-group) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |||||||
| Word memory test | Immediate recall | Measured value | P | 4.6 | 1.1 | 4.7 | 1.0 | 4.9 | 1.0 | |||
| A | 4.6 | 0.8 | 5.0* | 0.9 | 5.1 | 1.0 | ||||||
| Amount of change | P | 0.0 | 1.5 | 0.3 | 1.7 | 0.600 | ||||||
| A | 0.4 | 1.0 | 0.5 | 1.3 | ||||||||
| Immediate recall + cued recall | Measured value | P | 5.8 | 0.9 | 5.6 | 1.0 | 6.1 | 0.9 | ||||
| A | 5.8 | 0.9 | 6.1 | 0.9 | 6.3 | 0.7 | ||||||
| Amount of change | P | –0.2 | 1.2 | 0.3 | 1.3 | 0.317 | ||||||
| A | 0.3 | 1.2 | 0.4 | 1.3 | ||||||||
| Recall after 5 min | Measured value | P | 4.0 | 1.5 | 4.0 | 1.6 | 4.8* | 1.5 | ||||
| A | 4.5 | 1.3 | 4.8 | 1.3 | 4.9 | 1.4 | ||||||
| Amount of change | P | 0.0 | 2.1 | 0.8 | 1.7 | 0.389 | ||||||
| A | 0.2 | 1.5 | 0.3 | 1.8 | ||||||||
| Recall after 5 min + cued recall | Measured value | P | 5 | 1.2 | 4.8 | 1.3 | 5.5 | 1.3 | ||||
| A | 5.3 | 1 | 5.3 | 1.3 | 5.9* | 0.8 | ||||||
| Amount of change | P | –0.2 | 1.7 | 0.5 | 1.7 | 0.876 | ||||||
| A | 0.0 | 1.5 | 0.6 | 1.3 | ||||||||
| Verbal fluency test | Names of vegetables | Measured value | P | 16.6 | 3.4 | 16.2 | 4.1 | 17.2 | 3.5 | |||
| A | 16 | 3.1 | 16.8 | 3.3 | 17.4** | 3.8 | ||||||
| Amount of change | P | –0.4 | 3.1 | 0.6 | 3.1 | 0.348 | ||||||
| A | 0.7 | 2.9 | 1.4 | 2.5 | ||||||||
| Words that begin with ”a” | Measured value | P | 13.6 | 3.7 | 14.1 | 4.4 | 15.0* | 4.5 | ||||
| A | 13.7 | 3.8 | 13.9 | 4.2 | 16.3** | 3.6 | ||||||
| Amount of change | P | 0.5 | 2.8 | 1.5 | 3.5 | 0.361 | ||||||
| A | 0.2 | 4 | 2.5 | 3.9 | ||||||||
| Animal words | Measured value | P | 18.3 | 4.8 | 20.0* | 4.8 | 20.5** | 5.1 | ||||
| A | 17.9 | 4.4 | 19.1 | 4.6 | 20.1** | 4.5 | ||||||
| Amount of change | P | 1.7 | 4 | 2.2 | 3.8 | |||||||
| A | 1.3 | 4 | 2.3 | 2.9 | 0.865 | |||||||
| Stroop test | Step 1 | Measured value | P | 56.8 | 6.1 | 58.1 | 6.5 | 61.2** | 7.6 | |||
| A | 58 | 6.3 | 60.7** | 6.9 | 63.6** | 6.5 | ||||||
| Amount of change | P | 1.3 | 5.3 | 4.5 | 5.4 | 0.545 | ||||||
| A | 2.7 | 4.9 | 5.6 | 4.2 | ||||||||
| Step 2 | Measured value | P | 48.2 | 5.7 | 50.2* | 5.7 | 52.4** | 6.9 | ||||
| A | 49.3 | 5.7 | 51.5* | 5.5 | 53.5** | 5.1 | ||||||
| Amount of change | P | 2.0 | 3.9 | 4.2 | 5.3 | 0.977 | ||||||
| A | 2.2 | 4.6 | 4.2 | 4.3 | ||||||||
| Step 3 | Measured value | P | 38.6 | 3.9 | 40.0* | 4.6 | 41.6** | 5 | ||||
| A | 39.6 | 3.6 | 41.5** | 4.4 | 42.8** | 4.7 | ||||||
| Amount of change | P | 1.4 | 2.9 | 3.0 | 3.0 | 0.824 | ||||||
| A | 1.9 | 3.5 | 3.2 | 3.7 | ||||||||
| Step 4 | Measured value | P | 33.6 | 3.8 | 35.2 | 5.6 | 35.6 | 7.8 | ||||
| A | 33.5 | 4.3 | 35.1 | 4.4 | 36.3** | 5.3 | ||||||
| Amount of change | P | 1.6 | 5.5 | 2.0 | 6.9 | 0.863 | ||||||
| A | 1.5 | 5.1 | 2.8 | 4.9 | ||||||||
Group P: n = 26, group A: n = 28. Intra-group comparison at baseline *p<0.05 and **p<0.01 (1-sample t test). Inter-group comparison with group P (two-way-repeated measures of ANOVA).