TABLE 3.
Hospital outcomes in unmatched and matched cohorts
| Unmatched cohorts |
Matched cohorts |
|||||
|---|---|---|---|---|---|---|
| Variables no. (%) | No COPD (n = 6,630) | COPD (n = 2,495) | P value | No COPD (n = 2,455) | COPD (n = 2,495) | P value |
| In-hospital mortality | 160 (2.4%) | 65 (2.6%) | .60 | 70 (2.9%) | 65 (2.6%) | .60 |
| In-hospital morbidities | ||||||
| STEMI | 50 (0.8%) | 45 (1.8%) | <.01 | 25 (1.0%) | 45 (1.8%) | .02 |
| NSTEMI | 85 (1.3%) | 40 (1.6%) | <.01 | 25 (1.0%) | 40 (1.6%) | .07 |
| Tamponade | 30 (0.5%) | 10 (0.4%) | .74 | 20 (0.8%) | 10 (0.4%) | .06 |
| Iatrogenic cardiac complications | 170 (2.6%) | 80 (3.2%) | .09 | 80 (3.3%) | 80 (3.2%) | .90 |
| Cardiogenic shock | 300 (4.50%) | 70 (2.80%) | <.01 | 10 (0.4%) | 30 (1.2%) | <.01 |
| Postprocedure respiratory complication | 70 (1.1%) | 40 (1.6%) | .03 | 45 (1.8%) | 40 (1.6%) | .54 |
| Pneumothorax | 20 (0.30%) | 25 (1.00%) | <.01 | 10 (0.4%) | 25 (1.0%) | .01 |
| Vascular complications | 90 (1.40%) | 50 (2.00%) | .03 | 20 (0.8%) | 50 (2.0%) | <.01 |
| Transfusion during the procedure | 605 (9.10%) | 245 (9.80%) | .31 | 220 (9.0%) | 245 (9.8%) | .30 |
| Acute kidney injury | 525 (7.9%) | 165 (6.6%) | .04 | 190 (7.7%) | 165 (6.6%) | .13 |
| Septic shock | 55 (0.8%) | 30 (1.2%) | .09 | 10 (0.4%) | 30 (1.2%) | <.01 |
| Vasopressors use | 90 (1.40%) | 55 (2.20%) | <.01 | 30 (1.2%) | 55 (2.2%) | .73 |
| Stroke (after procedure) | 20 (0.30%) | 15 (0.60%) | .04 | 15 (0.6%) | 15 (0.6%) | .96 |
| Severe disability surrogates | ||||||
| Non-home discharge | 855 (13.2%) | 400 (16.4%) | <.01 | 250 (10.5) | 400 (16.4) | <.01 |
| Mechanical ventilation | 395 (6.0%) | 195 (7.8%) | <.01 | 125 (5.1%) | 195 (7.8%) | <.01 |
| Resources utilization | ||||||
| Length of stay, mean (SD), days | 5.7 (9.2) | 6.6 (8.3) | <.01 | 5.1 (7.4) | 6.6 (8.3) | .02 |
| Cost of hospitalization-mean (SD), $ | 204,446 (173,932) | 217,970 (150,018) | <.01 | 194,939 (167,692) | 217,225 (149,564) | .03 |
Abbreviations: COPD; chronic obstructive pulmonary disease, STEMI; ST-segment elevation myocardial infarction; NSTEMI; non-St-segment elevation myocardial infarction.