Document Classification

Section Type: RESULTS

Text: The provocative concentration of methacholine causing a 20 % decline in FEV (1) (PC (20)) and PD (20) were significantly lower using the long protocol : long-protocol PC (20) (median [25th to 75th percentile]), 19. 9 mg/mL (3. 9 to > 32 mg/mL) compared with short-protocol PC (20), > 32 mg/mL (8. 7 to > 32 mg/mL ; p < 0. 0001) ; long-protocol PD (20), 4. 2 mg (1. 6 to 20 mg) compared with short-protocol PD (20), > 13. 7 (2. 6 to > 13. 7 mg ; p = 0. 006).