ALB and diabetes mellitus: Univariate logistic analysis showed that five factors including age (OR 1.090 95% CI 1.021–1.163 p = 0.009), diabetes (OR 0.330 95% CI 0.132–0.822 p = 0.017), duration of hospitalization (OR 1.106 95% CI 1.053–1.162 p = 0.000), ASA classification (OR 4.735 95% CI 1.975–11.355 p = 0.000), and albumin infusion (OR 1.051 95% CI 1.008–1.096 p = 0.020) are associated with POD (Table 3).