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Table 5 Longitudinal comparisons of SF12v2, WOMAC, IPAQ, and Functional Assessments of all patients

From: End-stage knee osteoarthritis with and without sarcopenia and the effect of knee arthroplasty – a prospective cohort study

Questionnaires and Functional Assessments

Baseline

Time point

P valuea

6 months

12 months

SF12v2

 PCS

33.06 ± 8.55

38.96 ± 8.01

40.67 ± 7.93

< 0.01

 MCS

45.87 ± 9.70

47.04 ± 10.53

48.50 ± 10.19

0.46

WOMAC

 Total

42.27 ± 15.98

20.65 ± 15.24

16.65 ± 18.13

< 0.01

 Pain

8.67 ± 3.51

4.32 ± 3.20

3.73 ± 4.62

< 0.01

 Stiffness

3.48 ± 1.81

2.03 ± 1.70

1.77 ± 2.07

< 0.01

 Function

30.12 ± 11.96

14.26 ± 11.43

11.69 ± 12.86

< 0.01

 Percentage

44.03 ± 16.64

21.51 ± 15.87

17.35 ± 18.88

< 0.01

IPAQ

 Low

11 (21.6)

4 (12.1)

4 (9.5)

0.24

 Moderate

18 (35.3)

18 (54.5)

17 (40.5)

 

 High

22 (43.1)

11 (33.3)

21 (50.0)

 

Knee flexion/extension muscle strength

 Operated knee extension

12.56 ± 6.23

10.80 ± 4.99

15.53 ± 7.98

< 0.01

 Operated knee flexion

5.34 ± 2.92

4.61 ± 2.49

6.53 ± 3.85

0.03

 Non-operated knee extension

14.19 ± 7.61

14.07 ± 7.80

15.18 ± 8.36

0.79

 Non-operated knee flexion

5.55 ± 3.13

5.49 ± 2.48

6.74 ± 3.94

0.15

 Handgrip muscle strength

19.31 ± 5.92

18.98 ± 6.37

19.36 ± 7.66

0.97

 Six-meter gait speed test

10.24 ± 5.35

7.56 ± 2.14

7.69 ± 2.68

< 0.01

  1. PCS physical component score, MCS mental component score, IPAQ International Physical Activity Questionnaires
  2. a post-hoc Bonferroni log-rank test