The Predictive Value of a CXR in Suspected Pneumonia Clinicians often face uncertainty about whether they can rely on a negative chest x-ray (CXR) to rule out pneumonia in a child, even when other ...

The negative predictive value (NPV) for both groups (I-III and IV-VI) was greater than 99%, and the 95% confidence interval for the difference in NPV between the groups indicated that there was no ...