Nomogram creation for predicting postoperative severe ALI
Based on the characteristics of patients in the training group that were predictive of postoperative severe ALI, a nomogram was developed. Eight independent predictors of postoperative severe ALI were used (Figure 3). Each factor in the nomogram received an individual score according to the value of the factor, and a total score was obtained by summarizing the scores of eight factors used to estimate postoperative severe ALI risk. A bootstrap method with 1,000 repetitions was used to test the nomogram, and a calibration curve revealing the probability that the nomogram accurately estimated postoperative severe ALI risk was created (Figure 4).
[Insert Figures 3 and 4 here]