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Table 1 Biomarkers in patients diagnosed with PJI or not who underwent re-revision knee or hip arthroplasty

From: Plasma levels of D-dimer and fibrin degradation product are unreliable for diagnosing periprosthetic joint infection in patients undergoing re-revision arthroplasty

Biomarker

PJI group

Non-PJI group

P value

n

Median (IQR)

n

Median (IQR)

CRP (mg/L)

34

25.40 (16.61–60.68)

31

3.11 (1.77–7.71)

 < 0.001*

ESR (mm/h)

34

70.11 (53.50–80.00)

31

25.00 (13.00–45.00)

 < 0.001*

D-dimer (mg/L)

28

1.35 (0.89–2.18)

23

0.86 (0.62–2.37)

0.248

FDP (mg/L)

23

3.20 (2.50–6.00)

17

2.50 (2.50–5.25)

0.576

IL-6 (pg/L)

24

25.45 (6.66–67.33)

23

2.67 (1.76–9.54)

 < 0.001*

  1. n, sample size. CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; FDP, fibrin degradation product; IL-6, interleukin-6; IQR, interquartile range; PJI, periprosthetic joint infection. *: P < 0.05