Globulin and albumin to globulin ratio precisely diagnose periprosthetic joint infection and determine the timing of second-stage reimplantation

Table 5 Plasma levels of all markers in patients with culture-positive and culture-negative PJI

Markers	Culture-positive PJI (n = 60)	Culture-negative PJI (n = 19)	P value
CRP (mg/L)	39.56 ± 51.78	28.73 ± 37.83	0.450
ESR (mm/h)	46.32 ± 28.35	33.68 ± 19.69	0.123
PLT (× 10⁹/L)	284.03 ± 105.21	303.93 ± 69.87	0.120
MPV (fL)	9.83 ± 0.92	9.95 ± 0.92	0.536
PCT (%)	0.28 ± 0.09	0.30 ± 0.06	0.080
PMR	29.53 ± 12.88	31.09 ± 8.60	0.175
GLB	35.05 ± 6.25	31.61 ± 3.89	0.036
AGR	1.02 ± 0.21	1.21 ± 0.23	0.014
PLT/AGR	298.21 ± 155.53	268.04 ± 80.83	0.939

PJI, periprosthetic joint infection; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; PLT, platelet; MPV, mean platelet volume; PCT, plateletcrit; PMR, PLT to MPV ratio; GLB, globulin; AGR, albumin to globulin ratio

ISSN: 1749-799X