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Annals of Intensive Care

Table 1 Inflammatory markers in non-BSI group and BSI group

From: Early warning of bloodstream infection in elderly patients with circulating microparticles

Inflammatory markers

Group

P

Non-BSI (n = 86)

BSI (n = 54)

Within 6 h

   

Leukocyte1, 109/L, x ± s

9.79 ± 2.88

10.80 ± 3.50

0.085§

Neutrophil1, 109/L, x ± s

8.25 ± 2.74

8.83 ± 3.41

0.300§

NP1,%, median (IQR)

0.83 [0.75, 0.89]

0.86 [0.78, 0.91]

0.086#

Monocyte1, 109/L, median(IQR)

0.52 [0.35, 0.71]

0.38 [0.24, 0.59]

0.008#

MP1, %, median (IQR)

0.050 [0.035, 0.070]

0.040 [0.020, 0.063]

0.030#

CRP1, mg/L, median(IQR)

1.52 [0.78, 2.76]

1.92 [0.67, 4.74]

0.449#

PCT1, μg/L, median(IQR)

0.11 [0.05, 0.25]

0.22 [0.06, 0.45]

0.010#

Day 2

   

Leukocyte2, 109/L, x ± s

11.88 ± 4.90

11.74 ± 6.38

0.886§

Neutrophil2, 109/L, x ± s

9.66 ± 4.28

9.68 ± 5.87

0.999§

NP2, %, median(IQR)

0.82 [0.75, 0.87]

0.83 [0.75, 0.87]

0.922#

Monocyte2, 109/L, median(IQR)

0.56 [0.42, 0.80]

0.47 [0.30, 0.82]

0.210#

MP2, %, median(IQR)

0.051 [0.039, 0.077]

0.050 [0.033, 0.076]

0.513#

CRP2, mg/L, median(IQR)

9.99 [6.96, 15.35]

12.44 [6.04, 16.80]

0.636#

PCT2, μg/L, median(IQR)

0.75 [0.20, 2.15]

3.45 [1.28, 13.14]

 < 0.0001#

Day 14

   

Leukocyte3, 109/L, x ± s

6.51 ± 1.70

6.53 ± 1.55

0.739§

Neutrophil3, 109/L, x ± s

4.34 ± 1.46

4.29 ± 1.29

0.674§

NP3, %, median (IQR)

0.65 [0.59, 0.70]

0.66 [0.58, 0.74]

0.554#

Monocyte3, 109/L, median (IQR)

0.49 [0.33, 0.64]

0.47 [0.35, 0.58]

0.977#

MP3, %, median (IQR)

0.074 [0.059, 0.092]

0.069 [0.056, 0.091]

0.541#

CRP3, mg/L, median (IQR)

0.92 [0.47, 1.52]

0.93 [0.62, 1.59]

0.418#

PCT3, μg/L, median (IQR)

0.07 [0.05, 0.12]

0.12 [0.05, 0.20]

0.129#

  1. BSI bloodstream infection, Non-BSI non-bloodstream infection, NP neutrophil percentage, MP monocyte percentage, CRP C-reactive protein, PCT procalcitonin
  2. 1: within 6 h; 2: day 2; 3: day 14
  3. §t test
  4. #Mann–Whitney U test
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