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Table 2 Inflammatory cells in induced sputum

From: Increased human Ca2+-activated Cl-channel 1 expression and mucus overproduction in airway epithelia of smokers and chronic obstructive pulmonary disease patients

  Non-smokers Smokers without COPD COPD
Total cells (×105cells/g) 36.6 ± 9.1 45.8 ± 17.5 39.4 ± 12.5
Macrophage (%) 35.5 ± 7.2 22.5 ± 11.2 8.3 ± 2.8 **
Lymphocyte (%) 2.9 ± 0.5 3.3 ± 0.9 3.8 ± 0.7
Neutrophil (%) 61.1 ± 7.3 73.8 ± 11.8 82.5 ± 4.0 **
Eosinophil (%) 0.5 ± 0.3 0.5 ± 0.5 5.5 ± 2.0 *
  1. Results are means ± SEMs. Comparisons between groups were made by Student's t-tests (* p ≤ 0.05, ** p ≤ 0.01, compared with non-smokers).