CRP and systemic inflammatory response syndrome: Further analysis revealed that lactate dehydrogenase (LDH) and C-reactive protein (CRP) levels were significantly elevated in the SIRS group, with mean values of 311.53 U/L and 12.49 mg/L, respectively, compared to 229.78 U/L and 3.24 mg/L in the non-SIRS group (both p-values < 0.001).