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Prevalence of EIB defined as a ≥15%, ≥20%, or ≥25% decrease in PEFR, respectively, in all participants and stratified by sex, during the total measured time (A) and at 0–3, 10, and 20 min after exercise (B). P‐values were calculated using the Chi‐square test or Fisher's exact test, as appropriate. EIB, exercise‐induced bronchoconstriction; 6MFRT, 6‐minute free‐running test; CI, confidence interval; PEFR, peak expiratory flow rate
