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Table 2 EC-17 item a means (sd), frequencies, component loadings and item-total correlation (n = 116)

From: Translation, data quality, reliability, validity and responsiveness of the Norwegian version of the Effective Musculoskeletal Consumer Scale (EC-17)

Scale/Item

Mean (sd)

Never

Rarely

Sometimes

Usually

Always

Component loadingb

Item-total correlation

EC-17 total scores c:

61.27 (16.88)

       

1. I know who can help me judge the quality of the information I receive about my disease

2.41 (1.00)

9.5

44.8

26.7

14.7

4.3

0.69

0.65

2. I understand the information I receive about my disease

2.85 (0.75)

12.1

68.1

15.5

1.7

2.6

0.66

0.62

3. I know how to adapt general health information to my own situation

2.47 (0.84)

4.3

54.3

28.4

10.3

2.6

0.78

0.75

4. I can be clear about what is important in my life when I make decisions about my disease

2.57 (0.85)

8.6

52.6

27.6

9.5

1.7

0.74

0.69

5. I can weigh the pros and cons of a decision about my disease

2.67 (0.68)

6.9

57.8

31.9

2.6

0.9

0.68

0.63

6. I can set realistic goals about the management of my disease

2.47 (0.80)

3.4

52.6

33.6

7.8

2.6

0.67

0.62

7. I can express my concerns well to health care providers

2.65 (0.98)

16.4

48.3

22.4

9.5

3.4

0.77

0.74

8. I know how to ask good questions about my health and my disease

2.36 (0.95)

4.3

52.6

21.6

18.1

3.4

0.85

0.82

9. I have built an open and trusting relationship, based on mutual respect, with my health care providers

2.80 (1.01)

22.4

50.9

15.5

6.9

4.3

0.72

0.67

10. I am able to play the role I want to in my health care team

2.52 (0.96)

10.3

50.0

24.1

12.1

3.4

0.64

0.60

11. I know who to work with to meet my health needs

2.46 (0.98)

8.6

50.9

22.4

13.8

4.3

0.82

0.79

12. I can be assertive to get what I need to meet my health needs

2.02 (1.09)

6.9

32.8

26.7

25.9

8.6

0.73

0.69

13. I feel a sense of control over my disease

2.22 (0.92)

3.4

40.5

36.2

14.7

5.2

0.64

0.59

14. I feel confident in making decisions about my health

2.45 (0.91)

8.6

44.0

34.5

9.5

3.4

0.80

0.76

15. I can negotiate with others about what we need to do to manage my disease

2.28 (0.93)

2.6

46.6

32.8

12.1

6.0

0.78

0.74

16. I can negotiate with the health care system about what to do to manage my disease

2.15 (1.02)

5.2

39.7

25.0

25.0

5.2

0.80

0.76

17. I can organize my life to act on decisions about how to manage my disease

2.33 (0.95)

6.0

44.0

31.0

14.7

4.3

0.71

0.66

  1. a EC-17 items use a five point scale, ranging from 0 to 4, were 0 is never and 4 is always.
  2. b The two EC-17 components derived from principal component analysis had eigenvalues of 9.21 and 1.36.
  3. c EC-17 total score is calculated by adding up the scores and converting to a scale from 0 to 100 where 100 is the best possible score.