TABLE 2.
Baseline cardiorespiratory characteristics stratified according to outcome
| Characteristics |
Outcome |
|
|---|---|---|
| Successful (n=110) | Unsuccessful (n=67) | |
| Patients with oxygen therapy | 21±19 | 11±16 |
| FEV1, L | 1.1±0.4* | 0.9±0.4 |
| FEV1, % predicted | 40.7±16* | 36.6±13 |
| FVC, L | 1.9±0.7 | 1.8±0.7 |
| FVC, % predicted | 55.7±18.4 | 53.1±14.5 |
| Peak work rate, W | 51.0±23.9 | 46.1±22.9 |
| Peak VO2, L/min | 1.0±0.7 | 0.9±0.4 |
| 6 min walk test distance, m | 327±108 | 310±104 |
| Borg dyspnea score after baseline 6 min walk test (1–10) | 3.5±1.8 | 3.8±1.6 |
| Cycling endurance work, W | 43.5±19.4 | 39.1±18.3 |
| Cycling endurance time, min | 10.2±6.2 | 9.6±6.3 |
| Baseline SGRQ scores, % (total) | 54.5±10.6 | 51.8±11.6 |
| Symptoms | 60.0±18.8 | 54.6±20.1 |
| Activity | 68±13.5 | 67.7±12.8 |
| Impact | 45.0±13.1 | 42.2±14.2 |
| Medical Research Council dyspnea score category | 2.9±0.9 | 3.1±0.8 |
Data presented as mean ± SD unless indicated otherwise.
*
P<0.05. FEV1 Forced expiratory volume in 1 s; FVC Forced vital capacity; SGRQ St George’s Respiratory Questionnaire; VO2 Maximal oxygen uptake