Skip to main content

Table 3 Baseline, follow-up, change scores, effect size (ES) and standardised response mean (SRM) of the QuickDASH and PSFS according to the GROC category

From: Responsiveness and minimal important change of the QuickDASH and PSFS when used among patients with shoulder pain

GROC category N (%) Instrument Baseline score, mean (SD) Follow-up score, mean (SD) Change score, mean (SD) ES SRM
Total sample 106 QuickDASH
PSFS
39.7 (17.2)
3.2 (1.7)
30.0 (18.7)
5.3 (2.4)
10.3 (13.1)
− 2.1 (2.4)
0.6
1.2
0.8
0.9
Very much improved 14 (10.4) QuickDASH
PSFS
38.0 (16.8)
3.9 (2.0)
11.7 (11.7)
7.9 (2.2)
26.6 (15.4)
−4.1 (2.6)
1.6
2.1
1.7
1.6
Much improved 36 (26.9) QuickDASH
PSFS
35.5 (14.4)
3.3 (1.6)
22.7 (13.2)
6.1 (2.0)
12.9 (11.2)
−2.6 (2.0)
0.9
1.6
1.2
1.3
Slightly improved 34 (25.4) QuickDASH
PSFS
43.0 (17.3)
2.8 (1,8)
35.9 (17.5)
4.4 (1.6)
7.1 (11.1)
−1.6 (2.4)
0.4
0.9
0.6
0.7
Unchanged 18 (13.4) QuickDASH
PSFS
48.1 (17.6)
2.9 (1.5)
47.2 (16.6)
3.5 (1.8)
0.9 (8.7)
−0.6 (1.4)
0.1
0.4
0.1
0.4
Slightly worsened 3 (2.2) QuickDASH
PSFS
65.5 (16.6)
2.8 (1.1)
55.3 (13.3)
1.8 (1.4)
10.2 (3.4)
0.9 (0.5)
0.6
−0.8
3.0
−1.8
Much worsened 1 (0.7) QuickDASH
PSFS
-
-
-
-
-
-
-
-
-
-
Very much worsened 0 (0.0) QuickDASH
PSFS
-
-
-
-
-
-
-
-
-
-
  1. Abbreviations: ES = effect size; GROC = global rating of change scale; NRS = numeric pain rating scale; PSFS = Patient-Specific Functional scale; SRM, standardised response mean; QuickDASH = Quick Disabilities of the Arm, Hand and Shoulder questionnaire