We found that the tumor marker levels had some differential effects on NSSI, with sensitivity and specificity of 0.436 and 0.800 for CA19-9 (Figure 4A), 0.564 and 0.667 for CA-125 (Figure 4B), and 0.473 and 0.766 for CEA (Figure 4C), respectively. Here, CEACAM5 is linked to neoplasm.