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Table 2 Serum concentrations of TNF-α and sTNFR-2 in copd smokers, ex-smokers and never-smokers

From: Systemic inflammation in COPD in relation to smoking statusInfiammazione sistemica nella BPCO in rapporto alla condizione tabagica

Variable Smokers Ex-smokers Never-smokers P
  (n = 202) (n = 61) (n = 57)  
TNF-α, pg/ml 114.1 (33.4-154.2) 115.4 (44.2-167.6) 110.0 (37.5-155.3) 0.3
sTNFR-2, pg/ml 233.6 ± 107.1 227.6 ± 82.4 223.4 ± 63.6 0.07
  1. Definition of abbreviations: sTNFR-2, soluble tumor necrosis factor α receptor 2; TNF-α, tumor necrosis factor α.
  2. Data are presented as mean ± SD or median (25th-75th percentiles).