Predictors of one-year adverse outcomes after laparoscopic resection for hepatocellular carcinoma: Development and validation of an early-warning model

Figure 6 Receiver operating characteristic, decision curve analysis, and calibration curve validation of the least absolute shrinkage and selection operator model (external validation group). A: The receiver operating characteristic curve shows an area under the curve of 0.735 (95%confidence interval: 0.640-0.830) of the least absolute shrinkage and selection operator model in the external validation group, indicating good discriminatory ability; B: The decision curve analysis curve evaluates the model’s clinical net benefit, revealing a significant net benefit within the 0%-90% threshold probability range, with a maximum net benefit of 77.53%; C: The calibration curve illustrates the agreement between the predicted probabilities and actual outcomes. Good model calibration is evidenced by a non-significant goodness-of-fit result (χ² = 7.1336, P = 0.5223). TPR: True positive rate; FPR: False positive rate; AUC: Area under the curve; CI: Confidence interval.