Table 3 Pre-match and post-match sample characteristics for secondary outcome assessment
Variable | Before Propensity Score Matching | After Propensity Score Matching | ||||
|---|---|---|---|---|---|---|
AAD cohort (n = 927) | Ablation cohort (n = 1528) | Standardized difference | AAD cohort (n = 615) | Ablation cohort (n = 615) | Standardized difference | |
Age | 68 | 62 | −0.5428 | 65 | 66 | 0.0613 |
CCI score | 0.7 | 0.71 | 0.0255 | 0.74 | 0.75 | 0.0205 |
CHA2DS2-VASc score | 2.11 | 1.63 | −0.3626 | 1.24 | 1.23 | 0.0517 |
Cardiovascular-related outpatient visits (pre-index) | 1.46 | 0.96 | −0.3568 | 1.23 | 1.17 | −0.0449 |
Cardiovascular-related inpatient visits (pre-index) | 1.38 | 2.13 | 0.4898 | 1.76 | 1.80 | 0.0349 |
Female | 45.63% | 28.86% | 0.3747 | 34.15% | 36.26% | −0.0443 |
Year of index date | ||||||
2008 | 20.28% | 13.29% | 18.05% | 13.98% | ||
2009 | 18.99% | 15.58% | 19.02% | 16.26% | ||
2010 | 19.20% | 19.90% | 19.35% | 19.19% | ||
2011 | 17.80% | 17.67% | 16.59% | 15.45% | ||
2012 | 13.81% | 18.06% | 14.47% | 18.05% | ||
2013 | 9.92% | 15.51% | 0.2612 | 12.52% | 17.07% | 0.1942a |
DCCV | 19.31% | 25.59% | 0.1473 | 25.37% | 26.18% | 0.0186 |
Ischemic heart disease | 17.04% | 14.53% | −0.0852 | 16.42% | 17.56% | 0.0303 |
Heart failure | 8.41% | 9.75% | 0.0363 | 9.59% | 9.92% | 0.011 |
Cardiomyopathy | 2.37% | 4.91% | 0.1332 | 3.25% | 2.93% | −0.0188 |
Valvular disease | 6.69% | 10.73% | 0.138 | 8.94% | 9.11% | 0.0057 |
Wolff Parkinson | 0.11% | 2.23% | 0.1951 | 0.16% | 0.65% | 0.0767 |
Other arryhthmias | 10.46% | 22.58% | 0.3094 | 14.80% | 16.26% | 0.0404 |
Hypertension | 36.14% | 39.66% | 0.0308 | 41.30% | 39.67% | −0.0331 |
Diabetes | 9.39% | 11.98% | 0.0611 | 11.54% | 11.71% | 0.0051 |
Obstructive sleep apnea | 0.54% | 2.23% | 0.1268 | 1.14% | 1.46% | 0.0287 |
COPD | 5.50% | 6.68% | 0.0572 | 6.99% | 6.34% | −0.0261 |
Renal failure | 1.19% | 1.05% | −0.0397 | 0.81% | 0.65% | −0.0191 |
Stroke/TIA | 3.56% | 1.90% | −0.103 | 2.93% | 1.95% | −0.0633 |
Conduction system disease | 14.89% | 31.02% | 0.3682 | 21.14% | 22.28% | 0.0276 |
Hyperthyroidism | 1.08% | 0.20% | −0.0968 | 0.16% | 0.16% | 0 |
Rate control meds | 89.64% | 75.13% | −0.3948 | 84.88% | 84.72% | −0.0045 |
Anticoagulants | 60.95% | 76.46% | 0.3266 | 72.68% | 70.57% | −0.0469 |