Table 1.
Comparison of previous estimates and reported levels of adherence, completeness, and correctness of the THAR with national joint replacement registries. THA: Total hip arthroplasty; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index
| Source | Data | Adherence | Completeness | Correctness |
|---|---|---|---|---|
| THAR | Primary THA |
97.91% (n = 1100) |
78.55% | 99.54% |
| Revision THA |
81.48% (n = 54) |
n/a | 93.18% | |
| New Zealand Joint Registry [12] | Primary THA | 96.3% (n = 28,970) | n/a | n/a |
| Revision THA | 92.5% (n = 4263) | n/a | n/a | |
| UK National Joint Registry [1] | Revision THA | 79.6% (n = 9411) | n/a | n/a |
| Norwegian Arthroplasty Register [2] | Primary THA | 99.6% (n = 85,082) | n/a | n/a |
| Revision THA | 97.8% (n = 14,359) | n/a | n/a | |
| Finnish Arthroplasty Registry [15] | Primary THA | 96.1% (n = 2820) | n/a | n/a |