Table 3 Validity and agreement values for PRC when compared to surgeons’ notes
From: Reliability of patient-reported complications following hip or knee arthroplasty procedures
Complication | n a | TTb | TFc | FTd | FFe | Sens | Spec | PPV | NPV | Agree % | kappa |
|---|---|---|---|---|---|---|---|---|---|---|---|
Re-admission | 340 | 9 | 9 | 7 | 315 | 0.50 | 0.98 | 0.56 | 0.97 | 95.29 | 0.50 |
Re-operation | 340 | 3 | 2 | 2 | 333 | 0.60 | 0.99 | 0.60 | 0.99 | 98.82 | 0.59 |
Thromboembolic event | 1360 | 1 | 3 | 4 | 1352 | 0.25 | 1.00 | 0.20 | 1.00 | 99.49 | 0.22 |
DVT index leg | 340 | 1 | 2 | 3 | 334 | 0.33 | 0.99 | 0.25 | 0.99 | 98.53 | 0.28 |
DVT other leg | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
DVT both legs | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.53 | 1.00 |
Pulmonary embolism | 340 | 0 | 1 | 1 | 338 | 0.00 | 1.00 | 0.00 | 1.00 | 99.41 | 0.00 |
Infections | 1020 | 2 | 13 | 5 | 1000 | 0.13 | 1.00 | 0.29 | 0.99 | 98.24 | 0.17 |
SSI requiring oral AB | 340 | 2 | 9 | 5 | 324 | 0.18 | 0.98 | 0.29 | 0.97 | 95.88 | 0.20 |
SSI requiring IV AB | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
Cellulitis | 340 | 0 | 4 | 0 | 336 | 0.00 | 1.00 | NA | 0.99 | 98.82 | 0.00 |
Joint problems | 1700 | 6 | 31 | 66 | 1597 | 0.16 | 0.96 | 0.08 | 0.98 | 94.29 | 0.08 |
Dislocation | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
Stiffness | 340 | 0 | 6 | 28 | 306 | 0.00 | 0.92 | 0.00 | 0.99 | 90.00 | -0.03 |
Fracture | 340 | 0 | 0 | 1 | 339 | NA | 1.00 | NA | NA | 99.71 | 0.00 |
Length discrepancy | 340 | 1 | 9 | 4 | 326 | 0.10 | 0.99 | 0.20 | 0.97 | 96.18 | 0.12 |
Swelling | 340 | 5 | 16 | 33 | 286 | 0.24 | 0.90 | 0.13 | 0.95 | 85.59 | 0.10 |
Medical complications | 1700 | 1 | 11 | 5 | 1683 | 0.08 | 1.00 | 0.17 | 0.99 | 99.06 | 0.11 |
Respiratory infection | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
Cardiac | 340 | 0 | 0 | 1 | 339 | NA | 1.00 | NA | NA | 99.71 | 0.00 |
Stroke | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
Urinary infection/retention | 340 | 1 | 2 | 1 | 336 | 0.33 | 1.00 | 0.50 | 0.99 | 99.12 | 0.40 |
Neuropathy | 340 | 0 | 9 | 3 | 328 | 0.00 | 0.99 | 0.00 | 0.97 | 96.46 | -0.01 |
Subjective complications | 1020 | 11 | 67 | 55 | 887 | 0.14 | 0.94 | 0.17 | 0.93 | 88.04 | 0.09 |
Unexpected pain | 340 | 10 | 58 | 16 | 256 | 0.15 | 0.94 | 0.38 | 0.82 | 78.24 | 0.11 |
Paraesthesia/numbness | 340 | 1 | 7 | 28 | 304 | 0.12 | 0.92 | 0.03 | 0.98 | 89.71 | 0.02 |
Muscle weakness | 340 | 0 | 2 | 11 | 327 | 0.00 | 0.97 | 0.00 | 0.99 | 96.18 | -0.01 |
Other complications | 340 | 0 | 9 | 7 | 324 | 0.00 | 0.98 | 0.00 | 0.97 | 95.29 | -0.02 |
Unknown | 340 | 0 | 0 | 0 | 340 | NA | 1.00 | NA | NA | 100.00 | 1.00 |
All complicationsf | 7480 | 21 | 134 | 142 | 7183 | 0.14 | 0.98 | 0.13 | 0.98 | 96.31 | 0.11 |