Table 2.
Main Study Outcomes
| Characteristic | Control (%) (n = 107) | Intervention (%) (n = 108) | ARR (%) | NNT | P Value |
|---|---|---|---|---|---|
| Confirmed COPD-related hospitalization | |||||
| 1 mo AD | 9.4 | 1.9 | 7.5 | 13 | 0.0174 |
| 3 mo AD | 20.4 | 9.4 | 11.0 | 9 | 0.0280 |
| 6 mo AD | 27.7 | 15.4 | 11.6 | 8 | 0.0315 |
| 9 mo AD | 32.7 | 20.6 | 11.4 | 0.0514 | |
| 12 mo AD | 36.0 | 28.4 | 5.2 | 0.2496 | |
| All-cause hospitalization | |||||
| 1 mo AD | 11.3 | 4.6 | 6.7 | 0.213 | |
| 3 mo AD | 25.5 | 13.9 | 11.6 | 9 | 0.039 |
| 6 mo AD | 37.7 | 25.9 | 11.8 | 8 | 0.036 |
| 9 mo AD | 44.3 | 35.2 | 9.1 | 0.174 | |
| 12 mo AD | 50.0 | 40.7 | 9.3 | 0.172 |
Definition of abbreviations: AD = after hospital discharge; ARR = absolute risk reduction; COPD = chronic obstructive pulmonary disease; NNT = number needed to treat.