Baseline characteristics before and after propensity matching using overlap weighting
| Variables | Unweighted TAVR (N=3036) | Unweighted SAVR (N=18 396) | Unweighted SD | Weighted TAVR (N=2641) | Weighted SAVR (N=9355) | Weighted SD |
| Age | 82.54 | 68.59 | 1.466 | 79.43 | 79.43 | 0.000 |
| Female | 45.93% | 41.21% | 0.095 | 45.50% | 45.50% | 0.000 |
| Charlson Comorbidity Score | 1.37 | 0.67 | 0.491 | 1.10 | 1.10 | 0.000 |
| Frailty | 3.90 | 2.16 | 0.405 | 3.42 | 3.42 | 0.000 |
| Acute MI | 10.00% | 3.71% | 0.251 | 7.16% | 7.16% | 0.000 |
| Stroke | 4.96% | 2.48% | 0.131 | 3.78% | 3.78% | 0.000 |
| Dementia | 21.24% | 10.09% | 0.310 | 19.03% | 19.03% | 0.000 |
| Chronic dialysis | <0.23%* | ≤0.06%* | 0.012 | 0.08% | 0.08% | 0.000 |
| Cancer | 6.59% | 4.25% | 0.103 | 6.00% | 6.00% | 0.000 |
| COPD | 14.99% | 9.26% | 0.176 | 13.87% | 13.87% | 0.000 |
| Chronic lung disease | 18.02% | 10.65% | 0.212 | 16.37% | 16.37% | 0.000 |
| CABG | 1.70% | 0.37% | 0.131 | 1.02% | 1.02% | 0.000 |
| PCI | 21.92% | 2.44% | 0.624 | 8.70% | 8.70% | 0.000 |
| Cardiac defibrillator | 0.30% | ≤0.06%* | 0.056 | 0.17% | 0.17% | 0.000 |
| Pacemaker | 2.35% | 0.78% | 0.127 | 1.61% | 1.61% | 0.000 |
*Data were suppressed due to ICES reporting policy regarding small cell (the number of events is equal to or less than 5).
CABG, coronary artery bypass grafting; COPD, chronic obstructive pulmonary disease; ICES, Institute for Clinical Evaluative Sciences; MI, myocardial infarction; PCI, percutaneous coronary intervention; SAVR, surgical aortic valve replacement; TAVR, transcatheter aortic valve replacement.