Table 1. Clinicopathological and operative characteristics of the 3,827 patients who underwent gastrectomy.

Tumor stages are based on the TNM classification system from the 7th edition of the Union for International Cancer Control/American Joint Committee on Cancer. ASA = American Society of Anesthesiologists. ^*Anemia is defined as blood hemoglobin concentration <12 g/dl in females or <13 g/dl in males. ^†Leukocytosis is defined as white blood cell >10,000/µl. ^‡Hypoalbuminemia is defined as serum albumin <3.5 g/dl.