From: Pulmonary artery stiffness in chronic obstructive pulmonary disease (copd) - the mesa copd study
COPD Severity
N
PA Pulsatility % (SE)
p
Normal
35
14.0 (5.0)
-
Mild
16
13.1 (4.5)
0.56
Moderate
18
12.6 (3.7)
0.29
Severe
2
11.8 (3.)
0.51