Figure 1From: Prognostic value of procalcitonin in respiratory tract infections across clinical settings Admission procalcitonin levels. (A) Procalcitonin (PCT) levels stratified by setting (P = 0.0001). (B) PCT levels stratified by diagnosis (P = 0.0001). ECOPD, Exacerbated chronic obstructive pulmonary disease; ED, Emergency department; ICU, Intensive care unit; CAP, Community-acquired pneumonia; PC, Primary care; VAP, Ventilator-associated pneumonia.Back to article page