Kocher / Caird Criteria — Interactive
Classic Kocher 4 risk factors for hip ABA. Caird added CRP > 2 mg/dL as a 5th risk factor. Select boxes to show probabilities.
Check present risk factors
(Classic Kocher = first 4. CRP is Caird's 5th risk factor.)
Use clinical judgment — study-derived estimates only.
| Number of RF Present | Retrospective cohort (Kocher) | Prospective cohort (Kocher) | CRP added as RF (Caird) |
|---|---|---|---|
| 0 | 0.2% | 2% | 16.9% |
| 1 | 3% | 9.5% | 36.7% |
| 2 | 40% | 35% | 62.4% |
| 3 | 93% | 72.8% | 82.6% |
| 4 | 99.6% | 93% | 93.1% |
| 5 | 99.6% | 93% | 97.5% |