| Sensitivity | Specificity | PPV | NPV | |
Chest X-ray | Pneumonia | 92.7% | 95.6% | 84.4% | 98.1% |
Bronchiolitis | 77.8% | 89.7% | 66.7% | 93.8% | |
Chest ultrasound | Pneumonia | 97.6% | 95.9% | 88.9% | 99.1% |
Bronchiolitis | 91.7% | 95.9% | 86.8% | 97.5% |