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Table 3 Comparison of cytokine levels in patients with acute and chronic brucellosis

From: IL-6 and INF-γ levels in patients with brucellosis in severe epidemic region, Xinjiang, China

Clinical indicators

Acute group (n = 50)

Chronic group (n = 141)

t/χ2/z

P-value

Age (years), mean ± SD

40 ± 14

44 ± 14

1.813(t)

0.071

Gender, n (%)

36 (72.0)

98 (69.5)

0.740 (χ2)

0.109

Brucellosis arthritis, n (%)

23 (46.0)

89 (63.1)

4.460 (χ2)

0.035

Lumbar disc hyperplasia, n (%)

23 (46.0)

76 (54.0)

0.922 (χ2)

0.337

Chronic cholecystitis, n (%)

11 (22.0)

20 (14.2)

1.658 (χ2)

0.198

Orchitis, n (%)

4 (8.0)

9 (6.4)

0.152 (χ2)

0.696

Blood culture, positive, n (%)

20 (40.0)

23 (16.5)

11.508 (z)

<  0.001

RF (IU/ml)

7.2 (3.8–9.9)

6.2 (3.7–9.8)

0.633 (z)

0.526

ESR (mm/h)

25 (15–40)

17 (7–37)

2.040 (z)

<  0.041

anti-O (IU/ml)

79 (33–137)

87 (45–182)

0.717 (z)

0.473

PCT (pg/ml)

0.08 (0.06–0.12)

0.04 (0.03–0.06)

3.914 (z)

<  0.001

CRP (mg/L)

12.6 (5.0–30.8)

3.3 (1.2–16.2)

3.931 (z)

<  0.001

IL-4 (pg/ml)

4.03 (1.29–8.08)

2.02 (0.96–5.90)

1.874 (z)

0.061

IL-6 (pg/ml)

65.32 (36.27–68.60)

29.38 (11.30–53.09)

3.683 (z)

<  0.001

IL-10 (pg/ml)

2.38 (1.51–3.34)

0.89 (0.77–1.13)

3.350 (z)

<  0.001

IL-17 (pg/ml)

11.98 (3.92–16.49)

5.27 (2.24–12.49)

2.856 (z)

<  0.004

TNF-α (pg/ml)

50.88 (16.59–96.69)

28.24 (5.30–64.40)

2.387 (z)

<  0.017

INF-γ (pg/ml)

319 (145.14–588.52)

160.52 (36.59–418.54)

2.979 (z)

<  0.003

  1. All data are expressed as mean (interquartile range), unless otherwise indicated
  2. CRP C-reactive protein, ESR Erythrocyte sedimentation rate, PCT Procalcitonin, RF Rheumatoid factor