Table 1: Mean, Standard Deviation, Change, ICC between different assessments of each subscale.

WOMAC Subscales

WOMAC Score

Change*

ICC (95% CI)

Cronbach's alpha (95% CI)

First assessment

Second assessment

Mean

SD

Mean

SD

Pain

53.22

15.90

63.17

18.85

9.95

0.581 (0.234-0.760)

0.735 (0.379-0.864)

Stiffness

53.38

16.87

63.55

18.50

10.17

0.593 (0.230-0.772)

0.745 (0.375-0.872)

Physical Function

53.31

16.39

62.91

18.60

9.60

0.623 (0.262-0.793)

0.768 (0.416-0.884)

*Plus, sign means that the condition of patient has been worsened over time (Higher score = Deterioration).