Table 2 Baseline self-report measures by appropriateness groups

 Pain

65.8 (13.9)^b,c

47.6 (13.1)^a,c

29.8 (12.6)^a,b

< 0.001

 Stiffness

63.6 (24.4)^b,c

47.4 (20.1)^a,c

33.2 (22.8)^a,b

< 0.001

 Function

69.7 (14.1)^b,c

50.9 (13.3)^a,c

35.3 (15.2)^a,b

< 0.001

 PCS

26.3 (6.1)^c

28.3 (6.2)^c

33.0 (8.5)^a,b

< 0.001

 MCS

41.7 (14.9)^b,c

48.0 (14.1)^a

48.5 (13.9)^a

0.002

  Pain level while sitting^*

2.6 (1.7)^b,c

4.0 (2.1)^a,c

4.7 (2.1)^a,b

< 0.001

  Pain level while lying in bed^*

2.9 (1.9)^b,c

4.0 (2.0)^a,c

5.0 (2.1)^a,b

< 0.001

  Function while getting out of bed^*

1.6 (1.4)^b,c

2.2 (1.5)^a,c

3.5 (2.0)^a,b

< 0.001

  Function performing household duties^*

1.5 (1.2)^b,c

2.2 (1.4)^a,c

3.3 (1.8)^a,b

< 0.001

  Function performing leisure activities^*

1.2 (1.4)^c

1.7 (1.5)^c

2.6 (2.0)^a,b

< 0.001

  Total satisfaction score (range 0–40)

9.9 (5.2)^b,c

14.1 (6.2)^a,c

18.8 (7.1)^a,b

< 0.001