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Table 6 Correlations between RV/TLC ratio and functional and inflammatory markers

From: Asthma in elderly is characterized by increased sputum neutrophils, lower airway caliber variability and air trapping

 

Spearman’s coefficient of rank correlation (rho)

95% CI for rho

p-value

FEV1/FVC

− 0.46

− 0.51 to − 0.41

< 0.0001

FEV1, % pred

− 0.47

− 0.53 to − 0.42

< 0.0001

sGaw

− 0.41

− 0.47 to − 0.35

< 0.0001

Asthma duration

0.16

0.08 to 0.23

0.0001