Background: Benign tracheal stenosis may relapse after management. Objectives: This study aimed to assess the value of dyspnea and spirometry in detecting relapse of benign
*Adjusted for gender, age (class), season, % of answers to the questionnaire, type of survey (postal/telephone), and centre.†MRC: Medical Research Council dyspnea score.
Definition of abbreviations: MMRC = modified Medical Research Council. Δ MMRC = change in MMRC scale. Responders = improvement in MMRC scale by 1 or more.