There were significant differences in the following variables among the NPS groups: age (P = 0.001), heart rate (P < 0.001), systolic blood pressure (P = 0.032), heart failure (P = 0.035), malignant tumor (P = 0.016), DVT history (P = 0.032), right ventricle dilatation (P = 0.001), Alb levels (P < 0.001), total cholesterol levels (P = 0.073), NLR (P = 0.011), and LMR (P = 0.031). Here, ALB is linked to deep vein thrombosis.