TABLE 2.

Magnitude of strength impairment and disability change during clinical follow‐up

	Deterioration definition	High fluctuaters	Low fluctuaters	p
Grip strength right	MCID (≥10%)	13% (1 of 8)	16% (1 of 6)	1.00
	Sub MCID	50% (4 of 8)	33% (2 of 6)	0.62
Grip strength left	MCID (≥10%)	13% (1 of 8)	0% (0 of 6)	1.00
	Sub MCID	38% (3 of 8)	16% (1 of 6)	0.58
MRC sum (0–60)	MCID (≥ 2 points)	8% (1 of 12)	9% (1 of 11)	1.00
	Sub MCID	17% (2 of 12)	18% (2 of 11)	1.00
I‐RODS	MCID (≥ 4 points)	25% (2 of 8)	0% (0 of 4)	0.51
	Sub MCID	25% (2 of 8)	0% (0 of 4)	0.51

Abbreviations: I‐RODS, Inflammatory Rasch‐built Overall Disability Scale; MCID, minimal clinically important change; MRC, Medical Research Council.