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Table 4 Correlation between blood and sputum eosinophils according to the presence of more frequent comorbidities

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

Comorbidity

No

Yes

COPD

rho (p-value)

rho (p-value)

OSAS (n = 42 VS. 15)

0.42 (0.006)

0.51 (0.05)

Obesity (n = 38 VS. 19)

0.44 (0.006)

0.46 (0.05)

Hypertension (n = 27 VS. 30)

0.72 (< 0.0001)

0.21 (0.28)

Ischemic heart disease (n = 43 VS. 14)

0.52 (0.0004)

0.22 (0.46)

Atrial fibrillation (n = 45 VS. 12)

0.53 (0.0002)

0.11 (0.74)

Asthma

No

Yes

OSAS (n = 70 VS. 19)

0.71 (< 0.0001)

0.73 (0.0004)

Obesity (n = 69 VS. 20)

0.71 (< 0.0001)

0.77 (0.0001)

Hypertension (n = 60 VS. 29)

0.77 (< 0.0001)

0.61 (0.0004)

  1. OSAS obstructive sleep apnoea syndrome