Online Table 3.
Estimated treatment effects in older adults comparing percutaneous coronary intervention (PCI) to no PCI on the risk of in hospital mortality after ST-elevation myocardial infarction and cardiogenic shock by propensity score subclass excluding patients who died within the first week of hospital admission.
| Propensity Score Subclass1 | Treatment | N (%) | Events (%) | OR | 95% CI | p-value |
|---|---|---|---|---|---|---|
| 1 | PCI | 768 (43) | 187 (24) | 0.71 | 0.57 – 087 | 0.001 |
| No PCI | 1,019 (57) | 318 (31) | – | – | – | |
| 2 | PCI | 1,065 (47) | 214 (20) | 0.69 | 0.57 – 0.85 | <0.001 |
| No PCI | 1,195 (53) | 315 (27) | – | – | – | |
| 3 | PCI | 654 (50) | 116 (18) | 0.76 | 0.57 – 0.99 | 0.047 |
| No PCI | 660 (50) | 146 (22) | - | – | – | |
| 4 | PCI | 1,456 (51) | 187 (13) | 0.60 | 0.49 – 0.74 | <0.001 |
| No PCI | 1,415 (49) | 278 (20) | – | – | – | |
| 5 | PCI | 2,491 (54) | 275 (11) | 0.55 | 0.46 – 0.65 | <0.001 |
| No PCI | 2,157 (46) | 399 (19) | – | – | – |
Abbreviations: OR = Odds Ratio; CI = confidence interval
Propensity Score: Using logistic regression, the propensity score was estimated by modeling the associations of the following covariates with treatment (percutaneous coronary intervention) given the covariates: gender, race, diabetes mellitus, hypertension, obesity, peripheral vascular disease, pulmonary circulation disorder, chronic lung disease, renal failure, liver disorder, coagulopathy, weight loss, electrolyte imbalance, blood loss, and alcoholism.