Figure 2 shows the distribution of IPR values by cancer type compared to controls, including the identified cutoff. CRP showed a sensitivity of 82.9% and specificity of 68.4%, and an AUC of 0.790. NLR, PLR, MLR, and SII demonstrated lower sensitivities and AUCs, but all showed statistically significant results (p < 0.001) (Table 3, Figure 1b). This evidence concerns the gene CRP and cancer.