Demographic characteristics of participants
| Mean (SD) | t (df)/χ2 (df) | p Value | ||
|---|---|---|---|---|
| ALS (n=51) | Controls (n=35) | |||
| Age (years) | 59.84 (9.06) | 59.31 (7.57) | 0.28 (84) | 0.777 |
| Education (years) | 13.75 (3.25) | 14.71 (2.85) | −1.42 (86) | 0.157 |
| HADS Depression | 4.63 (3.36) | 1.80 (2.05) | 4.50 (84.39) | <0.001 |
| HADS Anxiety | 3.67 (2.63) | 1.69 (1.51) | 4.02 (84) | <0.001 |
| HADS Total | 8.33 (5.80) | 3.49 (3.30) | 4.46 (84) | <0.001 |
| Current IQ (WASI) | 119.21(10.58) | 121.06 (5.46) | −0.97 (62.29) | 0.334 |
| Premorbid IQ (WTAR) | 110.33 (6.49) | 111.22 (4.08) | −1.94 (75.03) | 0.266 |
| Gender, N (%) male | 29 (57%) | 20 (57%) | 0.00 (1) | 0.979 |
ALS, amyotrophic lateral sclerosis; HADS, Hospital Anxiety and Depression Scale; WASI, Wechsler Abbreviated Scale of Intelligence; WTAR, Wechsler Test of Adult Reading.