Table 2. Demographic data for high and low motor impairment patients.
| ALS HMI (n = 17) | ALS LMI (n = 11) | t-test | PD HM I (n = 12) | PD LMI (n = 9) | t-test | |||||||
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| M | SD | M | SD | t | p | M | SD | M | SD | t | p | |
| Age | 64.00 | 11.40 | 64.45 | 8.96 | .11 | >.1 | 70.25 | 5.51 | 73.88 | 8.11 | 1.20 | >.1 |
| Disease duration | 53.12 | 28.44 | 30.27 | 9.82 | 3.04* | .01 | 97.18 | 65.50 | 80.75 | 47.97 | .60 | >.1 |
| Education | 15.57 | 3.08 | 16.45 | 3.01 | .72 | >.1 | 17.00 | 2.22 | 15.89 | 3.10 | .96 | >.1 |
| ALS-FRS-R (48) | 31.00 | 6.30 | 41.36 | 2.16 | 6.24* | .00 | – | – | – | – | – | |
| UPDRS III | – | – | – | – | – | 28.25 | 4.35 | 12.89 | 4.81 | 7.66* | .00 | |
| MMSE (30) | 27.90 | 2.02 | 29.30 | .82 | 2.03 | .07 | 28.92 | .90 | 29.25 | 1.49 | .63 | >.1 |
| Semantic z-score | .27 | .62 | .09 | .95 | .45 | >.1 | .05 | .54 | −.92 | 1.34 | 1.83 | >.1 |
| Executive z-score | .16 | .98 | −.28 | .85 | 1.24 | >.1 | .31 | .59 | −.38 | .98 | 1.86 | .08 |
| Fluency z-score | .17 | .85 | .21 | .62 | .10 | >.1 | −.19 | .98 | −.33 | 1.31 | .26 | >.1 |
Mean (M) and standard deviations (SD) listed for ALS and PD patients with high and low motor impairment (HMI/LMI). Results of independent t-tests between HMI and LMI patients are listed, and t-scores are listed in bold with asterisks for tests that reached significance (p < .05).