CRP improves mortality prediction by prognostic scales in community-acquired pneumonia

In admitted patients with community acquired pneumonia, adding CRP to either the CURB-65 score or pneumonia severity index improved the area under the receiver operator curve for those prediction tools. In fact, CRP levels greater than 25 mg/dl on admission double the probability of death previously computed in the same class of initial risk

Thorax. 2009 Jul;64(7):587-91