Figure 3. Comparison of the memory length (τm) for observing accelerating events with varying thresholds (ρ = 0.25σ, 0.5σ, 0.75σ and σ, ΔB≤−ρ) between healthy volunteers and patients with different types of asthma.
Respiratory inter-breath interval time-series were obtained from 10 healthy volunteers, 10 patients with controlled atopic asthma (CAA), 10 patients with uncontrolled atopic asthma (UCAA) and 10 patients with uncontrolled non-atopic asthma (UNAA). Data are presented as mean ± standard error of mean. *P<0.05, **P<0.01 in comparison with healthy subjects, CAA and UCAA. +P<0.05, ++P<0.01 in comparison with healthy volunteers (Bonferroni post-hoc test).