Comparison of blood indicators between the two groups. A: LDH, lactate dehydrogenase; B: ALP, alkaline phosphatase; C: Ca, calcium; D: CEA, carcinoembryonic antigen; E: CA125, carbohydrate antigen 125; F: SII, systemic immune inflammatory index. Note: ns, P>0.05; *, P<0.05; **, P<0.01.