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The Egyptian Journal of Bronchology

Table 3 Correlation between FEV1 % of predicted, AIx75, and cf-PWV in studied COPD patients

From: Arterial stiffness can occur early in mild-to-moderate chronic obstructive pulmonary disease

 

FEV1 % of predicted

r

P value

AIx75

− 0.84

< 0.001**

cf-PWV (m/s)

− 0.85

< 0.001**

  1. COPD chronic obstructive pulmonary disease, FEV1 forced expiratory volume in 1 s, cf-PWV carotid-femoral pulse wave velocity, AIx75 augmentation index normalized to a standard heart rate of 75 beats per min, r Pearson’s correlation coefficient test
  2. **Highly significant
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