Table 1 Performance of serum tests for diagnosing PJI
From: Comparison of D-dimer with CRP and ESR for diagnosis of periprosthetic joint infection
| D-dimer | CRP | ESR | |
|---|---|---|---|
| True positive | 21 | 22 | 19 |
| False positive | 11 | 19 | 5 |
| False negative | 5 | 4 | 7 |
| True negative | 43 | 35 | 49 |
| Sensitivity (95%CI) | 80.77% (65.62–95.92%) | 84.61% (70.74–98.48%) | 73.08% (56.03–90.13%) |
| Specificity (95%CI) | 79.63% (68.89 90.37%) | 64.81% (52.41–74.81%) | 90.47% (82.74–98.47%) |
| AUC (95%CI) | 0.890 (0.814–0.966) | 0.831 (0.737–0.926) | 0.838 (0.732–0.944) |