Table 5 Anchor-based MCID estimates

No change (n = 84)

0.86 (0.18)

0.86 (0.17)

0

68.51 (13.55)

73.54 (12.43)

5.02 (10.08)

Small improvement (n = 84)

0.76 (0.25)

0.88 (0.11)

0.12 (0.24)

0.02

62.80 (14.38)

75.98 (10.87)

13.18 (13.77)

2.44

Large improvement (n = 62)

0.67 (0.32)

0.89 (0.09)

0.22 (0.31)

0.03

54.92 (12.53)

75.56 (9.76)

20.65 (12.06)

2.02

Small deterioration (n = 103)

0.88 (0.11)

0.84 (0.16)

-0.04 (0.16)

0.02

67.52 (14.92)

68.16 (11.75)

0.63 (13.15)

5.38

Large deterioration (n = 38)

0.89 (0.17)

0.77 (0.33)

-0.12 (0.34)

0.09

75.26 (10.39)

67.37 (15.32)

-7.89 (12.23)

6.17

Average MCID

0.04

4.00

MCID/MDC ratio

 Individual

0.095

0.191

 Group

1.81

3.70