From: Small airway dysfunction links asthma exacerbations with asthma control and health-related quality of life
Variable
Correlation coefficient
P values
R5-R20, kPa×s×L− 1
0.628
< 0.001
AX, kPA/L
0.811
X5, kPA/(L/s)
-0.893
FEF50
-0.246
FEF75
-0.216
FEF25 − 75
-0.249