Numerical rating scores summary statistics (numerical rating scale of breathlessness intensity 0–10)
| Minutes from baseline | ||||||||||||||||
| 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | |
| Control | ||||||||||||||||
| Mean | 6.3 | 5.0 | 5.7 | 4.9 | 4.0 | 4.3 | 3.8 | 4.3 | 3.5 | 3.3 | 3.5 | 3.5 | 3.0 | 3.0 | 3.0 | 2.7 |
| sd | 2.5 | 1.4 | 2.5 | 2.4 | 2.8 | 2.1 | 1.9 | 2.1 | 2.1 | 1.7 | 2.1 | 2.1 | 1.8 | 1.4 | 1.4 | 1.6 |
| Median | 7 | 5 | 6 | 6 | 4 | 5 | 4 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 |
| 25th percentile | 5 | 4 | 3 | 3 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 75th percentile | 8 | 6 | 8 | 6 | 6 | 6 | 5 | 6 | 5 | 4 | 5 | 5 | 4 | 4 | 4 | 4 |
| n | 8 | 2 | 3 | 8 | 2 | 3 | 8 | 3 | 2 | 7 | 2 | 2 | 6 | 2 | 2 | 6 |
| Intervention | ||||||||||||||||
| Mean | 3.0 | 7.3 | # | 2.7 | 7.0 | 2.0 | 2.0 | 2.7 | 4.0 | 2.0 | 2.0 | 3.0 | 5.0 | # | 2.0 | 3.0 |
| sd | 0.0 | 2.1 | # | 0.6 | 1.4 | 1.4 | 1.2 | 2.0 | 2.8 | # | 1.4 | |||||
| Median | 3 | 8 | # | 3 | 7 | 2 | 2 | 2 | 4 | 2 | 2 | 3 | 5 | # | 2 | 3 |
| 25th percentile | 3 | 5 | # | 2 | 6 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 5 | # | 2 | 2 |
| 75th percentile | 3 | 9 | # | 3 | 8 | 3 | 2 | 4 | 6 | 2 | 2 | 5 | 5 | # | 2 | 4 |
| n | 2 | 3 | 0 | 3 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 2 | 1 | 0 | 1 | 2 |
#: missing data.