Mortality at 2 yrs in patients who participated in pulmonary rehabilitation (PR) compared with nonparticipants, independent of the severity of disease as measured by the BODE index
| BODE quartile | No PR# | PR¶ | p-value for difference in mortality | ||||
| BODE | Mortality | Patients n | BODE | Mortality | Patients n | ||
| Q2 | 3.88 | 24% | 17 | 3.64 | 0% | 45 | <0.0001 |
| Q3 | 5.53 | 30% | 40 | 5.38 | 15% | 52 | <0.0001 |
| Q4 | 8.4 | 71% | 74 | 7.26 | 26% | 19 | <0.0001 |
#: n = 130; overall mortality 52%; ¶: n = 116; overall mortality 12%.