CRP and pneumonia: Compared with the group without pneumonia, the males were over-represented in the pneumonia group (P = 0.001) and longer hospitalizations (P < 0.001), higher values for hemoglobin (P = 0.03), WBC (P < 0.001) and CRP (P < 0.001) and lower values for lymphocyte differential (P < 0.001) (Table 1).