Fig. 2.

Box and whisker plots comparing multidimensional dyspnoea profile (MDP) data for groups receiving exercise training rehabilitation and standard physiotherapy at baseline and 90 days. The middle horizontal line represents the median. Whisker values are the lower quartile minus 1·5 times the interquartile range, or the upper quartile plus 1·5 times the interquartile range. Means are represented by a red asterisk. X-axis categories: D0, Day 0 or baseline data; D90, data at 90 days, end of the study; MDP scores (shown on y-axis) ranged from 0 to 110 (a higher score indicated greater breathlessness).