CRP and diabetes mellitus: There were differences in sex,age, drinking status, smoking status, diabetes history, Cr, UA, HbA1c, TG, HDL-C,lymphocytes, albumin, CRP, ACEI/ARB, and PPI among the four quartiles.Considering the influence of these confounding factors, we conducted amultivariate Cox regression analysis, in which, we found that a low CALLY indexwas associated with poor prognosis in CAD patients who had undergone PCI.Therefore, the results were reliable and could not be contingent.