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Table 3 Correlation between blood and sputum eosinophils in COPD and asthmatic subjects divided according to median blood eosinophil value (both percentage and count)

From: Do blood eosinophils strictly reflect airway inflammation in COPD? Comparison with asthmatic patients

 

rho (p-value)

rho (p-value)

COPD

Blood eosinophils < 2.9%

Blood eosinophils ≥2.9%

Blood eosinophils % and sputum eosinophils %

0.24 (0.22)

0.12 (0.53)

Blood eosinophils count and sputum eosinophils %

0.17 (0.40)

0.05 (0.78)

COPD

Blood eosinophils count < 210.6

Blood eosinophils count ≥210.6

Blood eosinophils % and sputum eosinophils %

0.45 (0.02)*

0.18 (0.35)

Blood eosinophils count and sputum eosinophils %

0.35 (0.07)

0.16 (0.42)

Asthma

Blood eosinophils < 3.6%

Blood eosinophils ≥3.6%

Blood eosinophils % and sputum eosinophils %

0.36 (0.02)*

0.37 (0.01)*

Blood eosinophils count and sputum eosinophils %

0.35 (0.02)*

0.37 (0.01)*

Asthma

Blood eosinophils count < 238.5

Blood eosinophils count ≥238.5

Blood eosinophils % and sputum eosinophils %

0.40 (0.007)*

0.48 (0.0007)*

Blood eosinophils count and sputum eosinophils %

0.28 (0.06)

0.48 (0.001)*

  1. * P < 0.05