Fig. 6

Construction of a new risk model in IPF patients. A Distribution and survival status of patients based on the model. B Kaplan–Meier curves for the OS of patients in the low- and high-risk groups. C Time-dependent ROC curves of 1, 2, and 3 years. D Nomogram for prediction of 4-year OS rates in IPF patients based on HE4 protein levels and GAP index. E Calibration curves of the nomogram. F 1-Year DCA curve of the nomogram. G 2-Year DCA curve of the nomogram. H 3-Year DCA curve of the nomogram