Table 5 The predictive values of a range of salivary pepsin concentrations to identify patients with GERD
Concentrations (ng/mL) | Sen (%) | Spe (%) | Youden index (%) | PPV (%) | NPV (%) | PLR | NLR |
|---|---|---|---|---|---|---|---|
≥16 | 85.1 | 47.1 | 32.2 | 60.5 | 76.8 | 1.61 | 0.32 |
≥76 | 73.0 | 88.3 | 61.3 | 85.6 | 77.4 | 6.24 | 0.30 |
≥125 | 54.8 | 90.0 | 44.8 | 83.9 | 67.6 | 5.48 | 0.50 |
≥200 | 44.3 | 97.2 | 41.5 | 93.8 | 64.7 | 15.82 | 0.57 |