ALB and neoplasm: After PSM, the clinical and demographic characteristics of the two groups were well balanced, including age, gender, BMI, American Society of Anesthesiologists (ASA) status, hypertension history, smoking history, tumor location, preoperative albumin, preoperative hemoglobin, forced expiratory volume in 1 s (FEV1), ejection fractions (EF), lymphadenectomy filed, clinical stage, histologic subtype, anastomotic position, route of gastric conduit, procedure type, clinical stage, and operative approach.