Table 3.
Comparison of procalcitonin diagnosis between simple infection and different classes of infection complicated by congestive heart failure
| Class | Cutoff (μg/L) | Sensitivity | Youden index | Positive predicative value | Negative predicative value | Accuracy | Z-score | P |
|---|---|---|---|---|---|---|---|---|
| Simple infection |
0.1 |
56.3 |
0.284 |
95.1 |
14.7 |
57.8 |
11.345 |
<0.05 |
| Infection complicated by NYHA class II heart failure |
0.1 |
76.6 |
0.487 |
90.9 |
45.7 |
75.6 |
20.232 |
<0.05 |
| Infection complicated by NYHA class III heart failure |
0.1 |
78.4 |
0.505 |
87.6 |
57.1 |
76.6 |
20.168 |
<0.05 |
| Infection complicated by NYHA class IV heart failure | 0.1 | 87.2 | 0.593 | 68.6 | 89.0 | 78.3 | 16.518 | <0.05 |
aNYHA, New York Heart Association.