Fig. 4

Prognostic models of PDAC were developed according to the immune features. A–D Multivariable Cox regression was conducted to develop prognostic model 1. The KM plot showing different OSs between patients in the high and low risk score groups (A). The ROC curve was employed to evaluate the accuracy of prognostic model for 1.5 year, 2 year, and 3 year OSs (B). The distribution of risk score for each patient. High and low risk groups were separated by dashed, labeled with red and green colors, respectively (C). The scatter plot showing survival status of each patient (D). E–H The prognostic model 2 was showed