Figure 1From: The role of biomarkers in community-acquired pneumonia: predicting mortality and response to adjunctive therapyPCT level and PSI prognostic value. Low levels (<0.1 mg/ml) of PCT at baseline are predictive of survival, even in PSI group IV and V patients, although the distinction is less defined in PSI group V patients. Reproduced with permission from Huang and coworkers [10]. PCT, procalcitonin; PSI, Pneumonia Severity Index.Back to article page