TABLE 1.

Outcome measures at study baseline (end of GRIPPER study ³ ) and last available clinical follow‐up

		High fluctuaters (n = 12)	Low fluctuaters (n = 11)	p
Follow‐up duration, mean (range), mo		45.8 (12–68)	43.6 (18–65)	0.78
Grip strength right, mean (range), kg	Baseline	26.1	30.0	0.63
	At last follow‐up	28.1	32.8	0.46
Grip strength left, mean (range), kg	Baseline	24.3	27.5	0.69
	At last follow‐up (n = 8)	27.0	33.2	0.36
MRC sum score (0–60), mean	Baseline	57.3	57.7	0.76
	At last follow‐up	58.3	57.7	0.66
MRC FDI sum (0–10), mean	Baseline	8.1	8.7	0.29
	At last follow‐up	8.7	8.6	0.96
I‐RODS score, mean (range)	Baseline	70	69	0.96
	At last follow‐up (n = 4)	76	79	0.81

Abbreviations: I‐RODS, inflammatory Rasch‐built Overall Disability Scale; MRC, Medical Research Council.