When we compared the patients with and without pneumonia, and the patients with segmental/lobar pneumonia versus those with bronchopneumonia, there were significant differences in certain parameters between the groups. 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 ). The patients with the more severe type of pneumonia (segmental/lobar pneumonia) showed a higher mean age (P = 0.001) and leukocyte count (P = 0.01) and lower lymphocyte differential values (P < 0.001) compared with the group with bronchopneumonia (Table 2 ). In addition, the severe pneumonia patients who received corticosteroids (17 cases) had the highest leukocyte counts and CRP levels, and the lowest lymphocyte differentials (11 800 ± 3600/mm 3 , 3.0 ± 3.1 mg/dL, and 8.8 ± 6.3%, respectively) [10] .