IL2RA and systemic inflammatory response syndrome: In that regression analysis, positive urine culture (p = 0.048; OR, 3.556; 95% CI, 1.009–12.604), long operation time (p = 0.027; OR, 1.011; 95%CI, 1.001–1.022), high IL-2R (p = 0.018; OR, 1.002; 95%CI, 1.000–1.004), low percentage of CD3+ cells (p = 0.006; OR, 0.931; 95%CI, 0.885–0.980), high WBC count (p = 0.044; OR, 1.282; 95%CI, 1.007–1.632) were independent risk factors for post-PCNL SIRS.