Table 6 Intra-rater agreement, RC1 (1st abstraction) vs. RC1 (2nd abstraction)
From: Reliability of medical record abstraction by non-physicians for orthopedic research
Data elements | Kappa | 95% CI | % Agreement |
|---|---|---|---|
Index knee | 0.97 | (0.92, 1.00) | 98.6 |
Bilateral operation | 1.00 | (1.00, 1.00) | 100 |
Arthroplasty approach type | 0.66 | (0.21, 1.00) | 97.3 |
Cement fixation | - | - | 100 |
Lateral release type | 1.00 | (1.00, 1.00) | 100 |
Posterior cruciate ligament recession | 1.00 | (1.00, 1.00) | 100 |
Knee alignment | 1.00 | (1.00, 1.00) | 100 |
Knee predominant compartment | 1.00 | (1.00, 1.00) | 100 |