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Table 1 Intra-assay and intra-individual reproducibility of NOx analysis in EBC

From: Analysis of nitrogen oxides (NOx) in the exhaled breath condensate (EBC) of subjects with asthma as a complement to exhaled nitric oxide (FeNO) measurements: a cross-sectional study

 

ICC1

CV2

Coef of Repeatability3

Bias3

Intra-assay

0.98

4.9% (4.7)

0.28

1.0 μM

Intra-individual

0.58

21.8% (14.3)

1.9

1.8 μM

  1. 1 Intraclass correlation coefficient
  2. 2 Coefficient of variation: mean (SD)
  3. 3 Bland and Altman test