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Table 4 Comparison of the two ECC – Bland and Altman

From: Predictors and reproducibility of exercise-induced bronchoconstriction in cold air

  Mean [%] SD 95% CI 95% LOAs
Maximal decrease FEV1 Total
n = 67
4.3 11.25 1.56–7.06 − 17.7 – 26.4
Children
n = 35
5.4 13.04 0.90–9.86 −20.2 – 30.9
Adults
n = 32
3.2 8.96 - 0.07 – 6.39 −14.5 – 20.9
AUC0-30min Total
n = 67
94.4 209.31 43.35–145.46 −315.7 – 504.7
Children
n = 35
116.4 253.22 28.02–204.72 − 379.9 – 612.7
Adults
n = 32
71.8 152.30 17.76–125.77 −226.8 – 370.3
  1. The agreement between the two exercise challenges was expressed according to the method of Bland and Altman
  2. Mean, mean difference of all values, SD Standard deviation of the mean difference of all values, 95% CI 95% Confidence interval of the mean difference of all values, 95% LOAs 95% Limits of agreement – range of FEV1 values in the next ECC
  3. The 95% CI of the maximal decrease in FEV1 does not include the zero, the maximal decrease in FEV1 were averaged higher than those in the second ECC