Table 6 Overall synthesis of reliability statistics
From: The reliability of WorkWell Systems Functional Capacity Evaluation: a systematic review
All studies | Level of methodological quality | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Poor | Fair to good | ||||||||
Acceptable | Total | % Acceptable | Acceptable | Total | % Acceptable | Acceptable | Total | % Acceptable | |
Inter-rater reliability | |||||||||
Weight-handling and strength | |||||||||
ICC | 6 | 6 | 100.0% | 6 | 6 | 100.0% | |||
κ | 3 | 6 | 50.0% | 3 | 6 | 50.0% | |||
POA | 16 | 16 | 100.0% | 12 | 12 | 100.0% | 4 | 4 | 100.0% |
Total | 25 | 28 | 89.3% | 18 | 18 | 100.0% | 7 | 10 | 70.0% |
Intra-rater reliability | |||||||||
Weight-handling and strength | |||||||||
κ | 1 | 1 | 100.0% | 1 | 1 | 100.0% | |||
POA | 7 | 7 | 100.0% | 7 | 7 | 100.0% | |||
Total | 8 | 8 | 100.0% | 8 | 8 | 100.0% | |||
Test-retest reliability | |||||||||
Weight-handling and strength | |||||||||
ICC | 42 | 44 | 95.5% | 33 | 34 | 97.1% | 9 | 10 | 90.0% |
POA | 4 | 4 | 100.0% | 4 | 4 | 100.0% | |||
Total | 46 | 48 | 95.8% | 37 | 38 | 97.4% | 9 | 10 | 90.0% |
Posture and mobility | |||||||||
ICC | 5 | 17 | 29.4% | 3 | 15 | 20.0% | 2 | 2 | 100.0% |
κ | 10 | 14 | 71.4% | 10 | 14 | 71.4% | |||
POA | 22 | 24 | 91.7% | 22 | 24 | 91.7% | |||
Total | 37 | 55 | 67.3% | 35 | 53 | 66.0% | 2 | 2 | 100.0% |
Locomotion | |||||||||
ICC | 1 | 2 | 50.0% | 1 | 2 | 50.0% | |||
κ | 1 | 3 | 33.3% | 1 | 3 | 33.3% | |||
POA | 3 | 4 | 75.0% | 3 | 4 | 75.0% | |||
Total | 5 | 9 | 55.6% | 5 | 9 | 55.6% | |||
Balance | |||||||||
POA | 2 | 2 | 100.0% | 2 | 2 | 100.0% | |||
Total | 2 | 2 | 100.0% | 2 | 2 | 100.0% | |||
Total test-retest reliability | 90 | 114 | 78.9% | 79 | 102 | 77.5% | 11 | 12 | 91.7% |
Overall reliability statistics | 123 | 150 | 82.0% | 105 | 128 | 82.0% | 18 | 22 | 81.8% |