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Table 2 A comparison of inflammatory markers in induced and spontaneous sputum sampled from the COPD patients at the time; either during a COPD exacerbation or during the stable state

From: Comparison of inflammatory markers in induced and spontaneous sputum in a cohort of COPD patients

  During a COPD exacerbation n = 28 During the stable state n = 30
  Induced sputum sample Spontaneous sputum sample p* Induced sputum sample Spontaneous sputum sample p*
IL-6(pg/ml) median, IQR 10.0(4.9-26.6) 10.4(2.8-23.3) 0.29 20.5(6.11-43.2) 13.9(2.2-55.2) 0.46
IL-8(pg/ml) median, IQR 339.7(193.6-663.9) 344.9(173.9-812.2) 0.77 514.2(225.6-1257.2) 3709.9(171.7-976.7) 0.18
IP-10(pg/ml) 735.0(205.4-2099.6) 372.1(218.7-1416.2) 0.15 529.0(215.4-2554.8) 362.3(142.0-1393.1) 0.07
TNF-α (pg/ml) median, IQR 3.0(0.2-11.8) 6.3(2.0-34.0) 0.002 0.9(0-2.4) 1.3(0.2-4.3) 0.06
IL-18 (pg/ml) median, IQR 9.2(4.9-12.9) 10.6(3.6-27.3) 0.52 6.5(2.4-25.6) 9.6(0.8-18.2) 0.64
MIG (pg/ml) median, IQR 539.2(100.1-1496.0) 384.6(221.2-1997.0) 0.41 534.4(56.9-1450.1) 567.4(178.0-2031.7) 0.82
  1. *Wilcoxon sign rank test.