ALB and deep vein thrombosis: Our findings confirmed that preoperative albumin was an independent predictor of postoperative DVT in non-cardiac surgery, with a high AUC value of 0.778 to predict postoperative DVT when below 41.9 g/L; and with high values of AUC when combined with the other 4 independent risk factors (0.885–0.890 as a categorized or a continuous variable), internal validation results also supporting its potential as a biomarker for DVT risk assessment.