Total Patient Population
N = 806

No PJI
N = 789

PJI
N = 17

P-Value

Percent of Patients With Elevation of CRP

Negative (lab of 0.3 or less)

402 (49.9%)

397 (50.3%)

5 (29.4%)

0.1392

Positive (lab greater than 0.3)

404 (50.1%)

392 (49.7%)

12 (70.6%)

Percent of Patients With Elevation of ESR

Negative (lab of 30 or less)

667 (82.8%)

667 (82.8%)

12 (58.8%)

0.1796

Positive (lab greater than 30)

139 (17.3%)

139 (17.3%)

5 (29.4%)

Percent of Patients With Elevation of CRP or ESR

Positive ESR or Positive CRP

373 (46.3%)

421 (52.2%)

5 (0.6%)

0.0557

Both ESR and CRP are Negative

433 (53.7%)

368 (45.7%)

12 (1.49%)

Percent of Patients With Elevation of CRP and ESR

Positive ESR and Positive CRP

696 (86.4%)

105 (13.0%)

5 (0.6%)

0.1586

Either ESR or CRP are Negative

110 (13.7%)

684 (84.9%)

12 (1.49%)

Percent of Patients With Elevation of CRP but ESR is Negative

Positive CRP and Negative ESR

294 (36.5%)

287 (35.6%)

7 (0.9%)

0.6841

CRP is Negative, and ESR can be positive/negative

512 (63.5%)

502 (62.3%)

10 (1.2%)

Percent of Patients With Elevation of ESR but CRP is Negative

Positive ESR and Negative CRP

29 (3.6%)

29 (3.6%)

0 (0.0%)

0.4208

ESR is Negative, and CRP can be positive/negative

777 (96.4%)

760 (94.3%)

17 (2.1%)