Table III.
Quantitative summarizing measurement properties for eligible instruments.
| Instruments | Subscales | Pooled Cronbach’s α Mean (Range) |
Pooled ICC Mean (95% CI) |
Pooled Pearson correlation coefficient Mean (95% CI)* |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Bodily pain | Physical function | Role emotional | Mental health | PCS | MCS | ||||
| FJS | 0.94 (0.81, 0.97) | 0.93 (0.92, 0.94) | |||||||
| ICOAP | Constant pain | 0.90 (0.76, 0.97) | 0.76 (0.71, 0.81) | ||||||
| Intermittent pain | 0.88 (0.81, 0.93) | 0.73 (0.67, 0.78) | |||||||
| KOOS | Pain | 0.88 (0.65, 0.92) | 0.88 (0.86, 0.90) | 0.63 (0.63, 0.64) | 0.49 (0.49, 0.49) | 0.17 (0.16, 0.18) | 0.27 (0.27, 0.28) | ||
| Function, daily living | 0.94 (0.80, 0.96) | 0.85 (0.82, 0.88) | 0.62 (0.61, 0.62) | 0.60 (0.60, 0.60) | 0.29 (0.28, 0.30) | 0.32 (0.32, 0.32) | |||
| Function, sports and recreational activities | 0.88 (0.60, 0.98) | 0.74 (0.70, 0.78) | 0.38 (0.37, 0.38) | 0.43 (0.43, 0.44) | 0.12 (0.10, 0.13) | 0.16 (0.16, 0.16) | |||
| Quality of life | 0.82 (0.71, 0.92) | 0.81 (0.78, 0.84) | 0.53 (0.53, 0.54) | 0.48 (0.47, 0.48) | 0.19 (0.19, 0.20) | 0.28 (0.28, 0.28) | |||
| Symptoms | 0.75 (0.56, 0.93) | 0.85 (0.83, 0.88) | 0.45 (0.45, 0.45) | 0.37 (0.37, 0.38) | 0.17 (0.17, 0.18) | 0.24 (0.24, 0.24) | |||
| KOOS-PS | 0.87 (0.79, 0.91) | ||||||||
| KOOS-12 | Pain | 0.78 (0.75, 0.84) | |||||||
| Function | 0.79 (0.78, 0.82) | ||||||||
| Quality of life | 0.82 (0.80, 0.84) | ||||||||
| Summary score | 0.91 (0.90, 0.93) | ||||||||
| KSS (2011) | Symptoms | 0.80 (0.31, 0.96) | 0.89 (0.86, 0.91) | 0.35 (0.32, 0.39) | 0.24 (0.21, 0.26) | 0.15 (0.13, 0.16) | 0.17 (0.15, 0.19) | 0.36 (0.34, 0.38) | 0.19 (0.18, 0.20) |
| Patient satisfaction | 0.88 (0.79, 0.95) | 0.88 (0.85, 0.90) | 0.49 (0.47, 0.51) | 0.32 (0.30, 0.33) | 0.24 (0.22, 0.25) | 0.29 (0.27, 0.30) | 0.33 (0.31, 0.36) | 0.30 (0.29, 0.30) | |
| Patient expectations | 0.88 (0.73, 1.00) | 0.85 (0.82, 0.87) | 0.08 (0.06, 0.11) | 0.13 (0.11, 0.16) | 0.12 (0.12, 0.13) | 0.10 (0.08, 0.11) | 0.05 (0.03, 0.08) | 0.10 (0.09, 0.11) | |
| Walking and standing | 0.80 (0.68, 0.96) | 0.84 (0.80, 0.87) | |||||||
| Standard activities | 0.88 (0.83, 0.94) | 0.86 (0.82, 0.89) | |||||||
| Advanced activities | 0.84 (0.73, 0.93) | 0.84 (0.80, 0.87) | |||||||
| Discretionary knee activities | 0.79 (0.51, 0.94) | 0.78 (0.72, 0.82) | |||||||
| Functional activities | 0.90 (0.80, 0.93) | 0.92 (0.91, 0.94) | 0.47 (0.46, 0.49) | 0.52 (0.50, 0.54) | 0.28 (0.26, 0.29) | 0.32 (0.30, 0.33) | 0.57 (0.56, 0.59) | 0.24 (0.22, 0.25) | |
| OKS | 0.92 (0.66, 0.94) | 0.93 (0.92, 0.94) | 0.62 (0.61, 0.63) | 0.66 (0.66, 0.67) | 0.32 (0.31, 0.33) | 0.32 (0.31, 0.32) | 0.65 (0.64, 0.66) | 0.46 (0.45, 0.48) | |
| WOMAC | Function | 0.94 (0.82, 0.98) | 0.91 (0.89, 0.93) | -0.56 (-0.56, –0.55) | -0.57 (-0.57, –0.57) | -0.30 (-0.31, –0.30) | -0.26 (-0.27, –0.26) | ||
| Pain | 0.83 (0.67, 0.91) | 0.88 (0.86, 0.91) | -0.57 (-0.57, –0.56) | -0.47 (-0.48, –0.47) | -0.29 (-0.30, –0.29) | -0.28 (-0.28, –0.27) | |||
| Stiffness | 0.84 (0.70, 0.91) | 0.87 (0.84, 0.90) | -0.47 (-0.47, –0.47) | -0.36 (-0.37, –0.36) | -0.28 (-0.28, –0.27) | -0.19 (-0.19, –0.19) | |||
*
Pearson coefficients with 36-Item Short-Form Health Survey questionnaire.
KSS (2011), 2011 Knee Society Scoring System; CI, confidence interval; FJS, Forgotten Joint Score; ICOAP, Intermittent and Constant Osteoarthritis Pain; KOOS, Knee Injury and Osteoarthritis Outcome Score; KOOS-12, 12-item short forms Knee Injury and Osteoarthritis Outcome; KOOS-PS, Knee Injury and Osteoarthritis Outcome Physical function Short form; MCS, Mental compartment summary score; OKS, Oxford Knee Score; PCS, Physical compartment summary score; WOMAC, Western Ontario and McMaster Universities Arthritis Index.