Table 2 Correlations between fraction of exhaled nitric oxide and clinical parameters.

From: Relationship between fraction of exhaled nitric oxide and airway morphology assessed by three-dimensional CT analysis in asthma

 

ρ

p-value

Age

0.370

0.017

Duration of asthma, years

−0.137

0.391

BMI

0.014

0.929

Blood %eosinophil

0.140

0.396

Blood total IgE

0.022

0.895

FEV1, % predicted

−0.033

0.728

FEV1/FVC ratio, %

−0.237

0.136

MMF, % predicted

−0.156

0.330

Inhaled corticosteroid dose, μg

0.090

0.586

  1. Data are expressed as the Spearman rank correlation coefficient (ρ) and p-value. BMI, body mass index; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; MMF, maximum mid-expiratory flow rate.
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