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Table 3 Intraclass correlation coefficients between the first and second assessments of the Dutch Knee Replacement Expectations Survey, for the total score and the individual items separately.

From: Reliability and concurrent validity of the Dutch hip and knee replacement expectations surveys

  ICC 95% CI
Knee Replacement Expectations Score 0.79 0.66 - 0.88
1. Relief pain 0.74 0.57 - 0.85
2. Improve ability to walk short distance 0.51 0.26 - 0.70
3. Improve ability to walk medium distance 0.70 0.52 - 0.82
4. Improve ability to walk long distance 0.66 0.47 - 0.80
5. Remove the need for a cane, crutch or walker 0.64 0.43 - 0.78
6. Make knee or leg straight 0.63 0.41 - 0.77
7. Improve ability to go up stairs 0.47 0.21 - 0.67
8. Improve ability to go down stairs 0.51 0.26 - 0.70
9. Improve ability to kneel 0.61 0.38 - 0.76
10. Improve ability to squat 0.60 0.37 - 0.76
11. Improve ability to use public transportation, drive 0.70 0.52 - 0.82
12. Be employed for monetary reimbursement 0.68 0.49 - 0.81
13. Improve ability to participate in recreation 0.73 0.55 - 0.84
14. Improve ability to perform daily activities 0.75 0.58 - 0.85
15. Improve ability to exercise or participate in sports 0.74 0.57 - 0.85
16. Improve ability to change position 0.44 0.18 - 0.65
17. Improve ability to interact with others 0.59 0.36 - 0.75
18. Improve sexual activity 0.71 0.53 - 0.83
19. Improve psychological well-being 0.68 0.48 - 0.81
  1. NOTE. ICC: Intraclass Correlation Coefficient; CI: Confidence Interval