Table 4 Sensitivity, Specificity, Positive Predictive Value (PPV) and Negative Predictive Value (NPV) with protein intake < 0.8 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 | |
≥0.8 g protein/kg aBW/d | n = 76 | n = 43 | n = 98 | n = 21 | n = 104 | n = 15 |
<0.8 g protein/kg aBW/d | n = 9 | n = 16 | n = 13 | n = 12 | n = 18 | n = 7 |
Cut-off probability | >0.3 | >0.5 | >0.7 | |||
Sensitivity | 64.0 (44.5–80.8) | 48.0 (29.3–67.1) | 28.0 (13.1–47.2) | |||
Specificity | 63.9 (55.0–72.1) | 82.4 (74.9–88.5) | 87.4 (80.7–92.5) | |||
PPV | 27.1 (16.9–39.3) | 36.4 (21.4–53.3) | 31.8 (15.1–52.5) | |||
NPV | 89.4 (81.7–94.8) | 88.3 (81.5–93.4) | 85.2 (78.2–90.8) | |||
