In the multivariate analysis, the above variables were entered (chronic renal insufficiency, current smoking status, time from injury to DUS, prevalence of elevated ALT and AST, increased count of LYM and PLT, and in the final model chronic renal insufficiency (OR, 3.37; 95%CI, 1.57 to 7.28), current smoking status (OR, 2.42; 95%CI, 1.23 to 5.63), time from injury to DUS (OR, 1.26; 95%CI, 1.07 to 1.61) and PLT > 220*109/L (OR, 1.94; 95%CI, 1.31 to 3.77) remained significant for association with occurrence of DVT (Table 3). This evidence concerns the gene GPT and chronic kidney disease.