PIRO Score for Community-Acquired PneumoniaLoading...Comorbidities (COPD or immunocompromised)No0Yes+1Age > 70 yearsNo0Yes+1BacteremiaNo0Yes+1Multilobar opacities in chest radiographNo0Yes+1ShockNo0Yes+1Severe hypoxemiaNo0Yes+1Acute renal failureNo0Yes+1Acute respiratory distress syndromeNo0Yes+1