Clinical response to bronchial thermoplasty

ParameterBaseline6 months post-procedure12 months post-procedurep-value
ACQ score3.4±1.01.8±0.91.5±0.90.001
FEV1 % pred42.9±11.546.8±5.848.2±13.30.350
SABA puffs per day11.0 (18.5)3.25 (7.75)2.5 (6.25)0.080
OCS mg·day−15.0 (6.75)0 (3.75)0 (6.25)0.005
Exacerbations per 6 months2.0 (2)0 (1.25)0 (1.0)0.008

Data are presented as mean±sd or median (interquartile range), unless otherwise stated. ACQ: Asthma Control Questionnaire; FEV1: forced expiratory volume in 1 s; SABA: short-acting β-agonist; OCS: oral corticosteroid (prednisolone). p: analysis of variance or Friedman's test. All p-values are significant between baseline and 6 months and not thereafter.