Figure 2
Survival curves for 90-day survival according to lymphocyte and neutrophil counts at pneumonia diagnosis. Kaplan–Meier curves for 90-day survival in patients with postoperative pneumonia and in those with community-acquired pneumonia are shown stratified by absolute lymphocyte count (ALC) (A) and neutrophil count (ANC) (B) at the time of pneumonia diagnosis. Patients were classified according to ALC as follows: severe lymphopenia, ALC < 0.5 × 103 cells/μL; mild lymphopenia, ALC from 0.5 to 0.9 × 103 cells/μL; and without lymphopenia, ALC ≥ 1.0 × 103 cells/μL. According to ANC, patients with ANC > 7.5 × 103 cells/μL were defined as those with neutrophilia, and patients with ANC ≤ 7.5 × 103 cells/μL were defined as those without neutrophilia. The P values were calculated using the log-rank test.
