“Minimal clinically important difference” estimates of 6 commonly-used performance tests in patients with chronic musculoskeletal pain completing a work-related multidisciplinary rehabilitation program

Table 3 Results of the Anchor-based, Distribution and Opinion methods

	Anchor-based method/Distribution method			Opinion
	Upper limb	Lower limb	Neck/Back
6MWT	–	+ 75 / + 58	+ 60 / + 55	+ 83
SRT	–	NR (+ 25 to + 55) / +39	NR (+ 25 to + 50) / + 44	+61
1MSCT	–	+ 18 / + 16	+ 15 / + 18	+ 25
STS	–	NR (−2.0 to −3.3) / -5	NR (−4.0 to −6.0) / -7	−6
JAM	+ 5 / + 6	–	–	+ 9
PILE	NR (+ 2.5 to + 5.0) / + 4	NR (0 to + 2.5) / + 4	NR (+ 2.5 to + 5.0) / + 4	+ 7

NR Not Relevant, only a range of values is given because no values are associated with both sensitivity and specificity ≥60% (the range boundaries correspond to the thresholds with either 60% sensitivity or 60% specificity). 6-Minute Walk Test (6MWT) in meters, Steep Ramp Test (SRT) in Watts, 1-Minute Stair Climbing Test (1MSCT) in steps, Sit-To-Stand test (STS) in seconds, Jamar dynamometer test (JAM) in Newtons, Progressive Isoinertial Lifting Evaluation (PILE) in kg

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