Table 5.
Ability of the fatigability features (aggregated by SD) to differentiate and distinguish between HCsa and people with MSb subgroupsc.
| Feature | HCs vs people with MS-Normal | HCs vs people with MS-Abnormal | People with MS-Normal vs people with MS-Abnormal | ||||||
| P valued | AUCe | Cohen d | P valued | AUC | Cohen d | P valued | AUC | Cohen d | |
| Fatigability number of performed pinches | .87 | 0.52 | 0.00 | .55 | 0.59 | 0.39 | .43 | 0.59 | 0.39 |
| Fatigability number of successful pinches | .94 | 0.51 | 0.08 | .72 | 0.55 | 0.18 | .74 | 0.54 | 0.07 |
| Fatigability successful attempts fraction | .72 | 0.55 | 0.32 | .03 f | 0.74 | 0.63 | <.001 | 0.77 | 1.10 |
| Fatigability two-finger attempts fraction | .94 | 0.51 | 0.03 | .03 | 0.74 | 0.64 | .01 | 0.75 | 0.71 |
| Fatigability pinch time | .72 | 0.55 | 0.40 | .23 | 0.65 | 0.24 | .03 | 0.71 | 0.37 |
| Fatigability gap time | .78 | 0.54 | 0.06 | .32 | 0.63 | 0.49 | .16 | 0.64 | 0.46 |
| Fatigability double touch asynchrony | .94 | 0.51 | 0.31 | .02 | 0.76 | 0.52 | <.001 | 0.82 | 0.76 |
| Fatigability double lift asynchrony | .89 | 0.52 | 0.33 | .20 | 0.66 | 0.21 | .07 | 0.67 | 0.28 |
| Fatigability first points distance | .72 | 0.56 | 0.18 | .67 | 0.57 | 0.33 | .18 | 0.64 | 0.52 |
| Fatigability last points distance | .72 | 0.55 | 0.49 | .63 | 0.58 | 0.15 | .20 | 0.63 | 0.57 |
| Fatigability finger path length | .72 | 0.55 | 0.43 | .52 | 0.60 | 0.36 | .03 | 0.70 | 0.75 |
| Fatigability finger velocity | .87 | 0.52 | 0.24 | .55 | 0.59 | 0.40 | .67 | 0.56 | 0.22 |
| Fatigability finger path ratio | .62 | 0.58 | 0.43 | .51 | 0.60 | 0.32 | .06 | 0.68 | 0.47 |
aHC: healthy control.
bMS: multiple sclerosis.
cThis analysis included 18 HCs, 38 people with MS–Normal (ie, with a baseline Nine-Hole Peg Test time below 22.15 seconds), and 29 people with MS-Abnormal (ie, with a baseline Nine-Hole Peg Test time above 22.15 seconds).
dMann-Whitney U test with false discovery rate correction adjusted for age and sex.
eAUC: area under the curve.
fItalic formatting represents a statistically significant P value at <.05.