Prognostic value of perioperative leukocyte count in resectable gastric cancer

Figure 2 Neutrophil count (A, B), lymphocyte count (C, D), and neutrophil to lymphocyte ratio (E, F) in patients with and without p-leukopenia or postoperative leukopenia before and after surgery. P-leukopenia refers to preoperative WBC ≥ 4.0 × 10⁹/L and postoperative WBC < 4.0 × 10⁹/L, with an absolute decrease ≥ 0.5 × 10⁹/L WBC. Postoperative leukopenia (Post leukopenia) here was defined as WBC < 4.0 × 10⁹/L. Data was presented as mean ± SD. P values were determined by Student’s t test compared with the corresponding values before operation. WBC: White blood cell.