Individualized risk estimation for postoperative pulmonary complications after hepatectomy based on perioperative variables

Figure 1 Predictive efficacy of the five variables. Predictive efficacy of the five variables: The area under the curves for diagnoses of postoperative complication were 0.538, 0.551, 0.626, 0608, and 0.590 for age, blood loss, operation duration, medical diseases requiring drug treatment, and number of segments resected, respectively.

Figure 2 The predictive efficacy of the combined variables in the liver operation pulmonary complication scoring system. A: The area under the curve of the combined variables was 0.742; B: The incidence of complications in two groups divided based on liver operation pulmonary complication scoring system.

Figure 3 Validation of the liver operation pulmonary complication scoring system. The area under the curve of the liver operation pulmonary complication scoring system was 0.767.