CCL8 and idiopathic interstitial pneumonia: Finally, to predict the prognosis of patients more intuitively, we constructed a nomogram for predicting 1-, 2- and 3-year survival of IPF patients in the training set based on IL1R2, S100A12, and CCL8 (Figure 6A), and the calibration curves showed that the observed and true values coincide well (Figure 6B).