ALB and Decreased total leukocyte count: In the univariate logistic regression analysis of leukopenia, only preoperative serum albumin level (OR 0.86, 95% CI 0.75–0.98, p = 0.027) reached statistical significance, and two variables (sarcopenia and albumin) with a p-value lower than 0.1 were included in the multivariate logistic regression model.