Table 3 Sensitivity, Specificity, Positive Predictive Value (PPV) and Negative Predictive Value (NPV) with protein intake < 1.0 g/kg adjusted body weight (aBW)/d as the reference for 3 different cut-off probabilities (n = 144).
From: Validation of the German version of the Protein Screener 55+
Probability | ||||||
|---|---|---|---|---|---|---|
≤0.3 | >0.3 | ≤0.5 | >0.5 | ≤0.7 | >0.7 | |
≥1.0 g protein/kg aBW/d | n = 58 | n = 29 | n = 73 | n = 14 | n = 78 | n = 9 |
<1.0 g protein/kg aBW/d | n = 27 | n = 30 | n = 38 | n = 19 | n = 44 | n = 13 |
Cut-off probability | >0.3 | >0.5 | >0.7 | |||
Sensitivity | 52.6 (39.8–65.3) | 33.3 (22.0–46.1) | 22.8 (13.3–34.7) | |||
Specificity | 66.7 (56.4–76.0) | 83.9 (75.3–90.6) | 89.7 (82.1–94.9) | |||
PPV | 50.8 (38.3–63.4) | 57.6 (40.6–73.4) | 59.1 (38.4–77.8) | |||
NPV | 68.2 (57.9–77.5) | 65.8 (56.7–74.2) | 63.9 (55.2–72.1) | |||
