Table 2.

Mean, standard deviation, mean difference and effect sizes for the RMDQ scales

	Mean (SD)		Mean difference (SD)	ES (84% CI)	GRI (84% CI)
	Baseline	Post-treatment
24-item version	12.1 (5.6)	8.4 (5.9)	3.7 (4.7)	0.67 (0.63–0.71)	1.55 (1.48–1.62)
18-item versiona	10.2 (4.7)	6.6 (5.2)	3.6 (4.7)	0.75 (0.71–0.79)	1.49 (1.42–1.57)
18-item versionb	10.1 (4.6)	6.5 (5.1)	3.6 (4.6)	0.78 (0.73–0.82)	1.52 (1.45–1.59)
11-item version	6.6 (3.2)	4.5 (3.5)	2.1 (3.1)	0.65 (0.61–0.69)	1.30 (1.23–1.38)

ES were calculated using mean differences divided by the standard deviation of the baseline scores

SD standard deviation, ES effect sizes, GRI Guyatt responsiveness index

^a18-item RMDQ version proposed by Williams and Myers [6]

^b18-item RMDQ version proposed by Stratford and Binkley [7]