Table 5 Negative Predictive Values (NPV) of different tests for Egypt and Germany where prevalence rates are available
Egypt | Germany | |||||
|---|---|---|---|---|---|---|
Prevalence | Negative LR | NPV | Prevalence | Negative LR | NPV | |
Visual detection | ||||||
advanced occlusal | 8.1% | 0.29 | 97.5% | 22.0% | 0.58 | 85.9% |
all occlusal | 12.9% | 0.18 | 97.4% | 45.0% | 0.56 | 68.6% |
Radiographic detection | 19.0% | 0.51 | 89.3% | 10.0% | 0.54 | 94.3% |
advanced occlusal | 19.0% | 0.75 | 85.0% | 11.0% | 0.76 | 91.4% |
all occlusal | 8.1% | 0.29 | 97.5% | 22.0% | 0.58 | 85.9% |