High fractional exhaled nitric oxide levels may predict short‐term worsening of respiratory oscillometry in asthma

Allergy ◽  
2020 ◽  
Vol 76 (1) ◽  
pp. 363-366
Author(s):  
Yoshinari Endo ◽  
Toshihiro Shirai ◽  
Keita Hirai ◽  
Taisuke Akamatsu ◽  
Eishi Kato ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Exhaled Nitric Oxide ◽  
Fractional Exhaled Nitric Oxide ◽  
Short Term

scholarly journals Between-occasion repeatability of fractional exhaled nitric oxide measurements in children

2018 ◽  
Vol 44 (1) ◽  
pp. 52-54 ◽  
Author(s):  
Kamil Barański ◽  
Jan E. Zejda
Keyword(s):  
Nitric Oxide ◽  
Correlation Coefficients ◽  
Epidemiological Survey ◽  
Exhaled Nitric Oxide ◽  
Strongly Correlated ◽  
Concordance Correlation ◽  
Fractional Exhaled Nitric Oxide ◽  
Short Term ◽  
Relative Differences

ABSTRACT The aim of the study was to assess short-term repeatability of measurements of fractional exhaled nitric oxide (FENO) and its correlates in children in the 6- to 9-year age bracket participating in a respiratory epidemiological survey. FENO was measured in two sessions one week apart in 101 children. Participants were divided into three groups: asymptomatic (n = 76); symptomatic (n = 14); and asthma (n = 11). Absolute and relative differences between the measurements, as well as concordance correlation coefficients, were used in order to assess repeatability. The two FENO measurements were strongly correlated (0.98). Although intragroup comparisons of the two measurements were not significantly different (p = 0.2), intergroup comparisons were. FENO measurements are reproducible in children in epidemiological settings.

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