The Table 2 and Fig. 2 show that the patients in the PJI group had significantly higher levels of WBC count (7.81 ± 2.83 vs 6.93 ± 1.79) than the AL group (P < 0.05), and also the PLT (276.67 ± 89.10 vs 216.89 ± 78.45), ESR (40.36 ± 25.65 vs 23.41 ± 12.96), CRP (25.29 ± 35.71 vs 9.10 ± 11.96), PLR (265.55 ± 176.79 vs 156.14 ± 85.83), PVR (29.41 ± 9.94 vs 22.49 ± 8.19), NLR (5.02 ± 2.84 vs 3.15 ± 1.78), and MLR (0.54 ± 0.37 vs 0.30 ± 0.18) than AL group (P < 0.001) (Fig. 2, Table 2). The gene discussed is CRP; the disease is axial length measurement.