TABLE 2.
Site-specific and overall performance characteristics of BDM compared to those of culture
| Site | % performance parameter (95% CI)d |
||||
|---|---|---|---|---|---|
| Prevalencea | Sensitivity | Specificity | PPVb | NPVc | |
| 1 | 20.0 | 97.4 (86.2-99.9) | 96.6 (92.2-98.9) | 86.4 (80.2-90.8) | 98.4 (97.2-99.1) |
| 2 | 25.1 | 92.0 (80.8-97.8) | 95.9 (91.4-98.5) | 89.5 (84.5-93.0) | 97.9 (96.3-98.8) |
| 3 | 23.6 | 96.2 (86.8-99.5) | 97.6 (94.0-99.3) | 88.7 (83.4-92.4) | 98.0 (96.6-98.9) |
| Overall | 23.0 | 95.0 (90.0-98.0) | 96.7 (94.7-98.2) | 88.3 (82.9-92.2) | 98.1 (96.7-98.9) |
a
Based on all compliant reference culture results.
b
Positive predictive value.
c
Negative predictive value.
d
CI, confidence interval.