CST3 and diabetes mellitus: In addition, the discrimination ability of the nomogram calculated by the AUC was superior to the other risk factors in the training set: age (0.734, 95%CI: 0.643–0.824, P < 0.001), diabetes mellitus (0.599, 95% CI: 0.493–0.704, P = 0.056), white blood count (0.691, 95% CI: 0.592–0.791, P < 0.001), cystatin C (0.711, 95% CI: 0.625–0.797, P < 0.001), and serum amyloid A (0.760, 95% CI: 0.674–0.846, P < 0.001; Figure 4A).