Measuring functional status in chronic lung disease:conclusions from a randomized control trial

The optimal method of assessing the effect of treatment on the day-to-day function of patients with chronic airflow limitation has not yet been established. Therefore, we examined the performance of the 6-min walk test, a rating of dyspnea following the walk test, and three different questionnaires measuring dyspnea in daily activities, in a controlled trial of inhaled salbutamol and oral theophylline in 24 patients with primary fixed chronic …