Symptoms and Signs.

Absolute and relative (%, in parenthesis) number of pneumonia patients with symptoms that were part of our Possible Pneumonia definition (rows 3–7) or that commonly occur in ARIs (rows 8–11). Physical signs of lung consolidation (row 12) included documented rales, bronchial breathing, egophony and whispered pectoriloquy. Populations with Possible Pneumonia (column 2) and Pneumonia-in-Plan (column 3) are broken down into outpatients (columns 4 and 5) and admitted subpopulations (column 6).