From: Variability and accuracy of multiple saliva pepsin measurements in laryngopharyngeal reflux patients
Morning pepsin test | Post-lunch pepsin test | Post-dinner pepsin test | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
SE | SP | PPV | NPV | SE | SP | PPV | NPV | SE | SP | PPV | NPV | |
≥ 16 ng/mL | 64.9 | 66.7 | 75.0 | 55.2 | 59.5 | 66.7 | 73.3 | 51.6 | 59.0 | 66.7 | 74.2 | 50.0 |
≥ 36 ng/mL | 54.1 | 80.0 | 80.0 | 54.0 | 56.8 | 79.2 | 80.8 | 54.3 | 53.9 | 79.2 | 80.0 | 51.4 |
≥ 45 ng/mL | 51.4 | 83.3 | 81.8 | 54.1 | 54.1 | 79.2 | 80.0 | 52.8 | 51.3 | 79.2 | 80.0 | 50.0 |
≥ 75 ng/mL | 48.6 | 83.3 | 81.0 | 52.6 | 45.9 | 83.3 | 80.9 | 50.0 | 48.7 | 83.3 | 82.6 | 50.0 |
≥ 100 ng/mL | 45.7 | 87.5 | 84.2 | 52.5 | 45.9 | 83.3 | 80.9 | 50.0 | 48.7 | 83.3 | 82.6 | 50.0 |