Table 9.
The diagnostic performance of different serum parameters for PJI (Knee Joint Subgroup)
| Biomarker | AUC (95%CI) | Youden index | Optimal cutoff value | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|
| CRP (mg/L) | 0.845(0.745–0.946) | 0.6333 | 3.60 | 83.33 | 80.00 |
| ESR (mm/h) | 0.882(0.773–0.990) | 0.7458 | 22.00 | 89.58 | 85.00 |
| PC/CRP | 0.822(0.721–0.923) | 0.5250 | 20.60 | 62.50 | 90.00 |
| PC/AGR | 0.792(0.667–0.916) | 0.5250 | 160.63 | 87.50 | 65.00 |
| PLR | 0.768(0.645–0.891) | 0.4708 | 132.57 | 77.08 | 70.00 |
| PC (× 109/L) | 0.670(0.525–0.816) | 0.3167 | 184 | 91.67 | 40.00 |
| PVR | 0.639(0.491–0.786) | 0.2458 | 19.89 | 89.58 | 35.00 |
| PNR | 0.583(0.436–0.730) | 0.2458 | 67.13 | 64.58 | 60.00 |
| MPV | 0.505(0.353–0.656) | 0.2042 | 9.10 | 60.42 | 60.00 |