Table 1.
Baseline characteristics in the unmatched and matched cohorts for elective TAA repair
| Characteristic | Unmatched cohort | P value | Matched cohort | ||||||
|---|---|---|---|---|---|---|---|---|---|
| BAV (n = 13,090) | TAV (24,920) | BAV (n = 12,480) | TAV (n = 12,480) | ||||||
| Age | 55.5 ± 13.3 | 63.5 ± 15.3 | < 0.001 | 56.16 ± 13.2 | 57.84 ± 13.4 | ||||
| Female sex | 3125.001 | 23.9% | 7809 | 31.3% | < 0.001 | 3015.001 | 24.2 | 2864 | 23.0% |
| Race | |||||||||
| White | 10,599 | 81.0% | 19,290 | 77.4% | < 0.001 | 10,104 | 81.0% | 10,119 | 81.1% |
| Black | 150 | 1.1% | 1365 | 5.5% | 145 | 1.2% | 160 | 1.3% | |
| Hispanic | 505 | 3.9% | 894 | 3.6% | 485 | 3.9% | 480 | 3.8% | |
| Asian/Pacific Islander | 235 | 1.8% | 730 | 2.9% | 235 | 1.9% | 225 | 1.8% | |
| Native American | 60 | 0.5% | 65 | 0.3% | 45 | 0.4% | 50 | 0.4% | |
| Other races | 405 | 3.1% | 815 | 3.3% | 385 | 3.1% | 435 | 3.5% | |
| Coagulopathy | 3945 | 30.1% | 8010 | 32.1% | 0.080 | 3800 | 30.4% | 3889 | 31.2% |
| Valvular disease | 85 | 0.6% | 270 | 1.1% | 0.063 | 85 | 0.7% | 80 | 0.6% |
| Obesity | 2280 | 17.4% | 4245 | 17.0% | 0.673 | 2154 | 17.3% | 2235 | 17.9% |
| Fluid/electrolyte disorders | 4780 | 36.5% | 9239 | 37.1% | 0.659 | 4580 | 36.7% | 4639 | 37.2% |
| Hypertension | 8055 | 61.5% | 18,629 | 74.8% | < 0.001 | 7865 | 63.0% | 8229 | 65.9% |
| Hypothyroidism | 1179 | 9.0% | 2820 | 11.3% | 0.001 | 1149 | 9.2% | 1135 | 9.1% |
| Chronic kidney disease | 595 | 4.5% | 2269 | 9.1% | < 0.001 | 595 | 4.8% | 550 | 4.4% |
| Chronic liver disease | 230 | 1.8% | 370 | 1.5% | 0.371 | 215 | 1.7% | 245 | 2.0% |
| Chronic lung disease | 1850 | 14.1% | 5120 | 20.5% | < 0.001 | 1800 | 14.4% | 2194 | 17.6% |
| Coronary artery disease | 3615 | 27.6% | 10,125 | 40.6% | < 0.001 | 3595 | 28.8% | 3855 | 30.9% |
| Diabetes mellitus | 1530 | 11.7% | 3520 | 14.1% | 0.003 | 1495 | 12.0% | 1639 | 13.1% |
| Anemia | 1345 | 10.3% | 3209 | 12.9% | 0.001 | 1305 | 10.5% | 1404 | 11.3% |
| Hx of ICD | 50 | 0.4% | 245 | 1.0% | 0.005 | 20 | 0.4% | 26 | 0.5% |
| Hx of cardiac pacemaker | 175 | 1.3% | 650 | 2.6% | < 0.001 | 175 | 1.4% | 205 | 1.6% |
| Prior PCI | 360 | 2.8% | 1175 | 4.7% | < 0.001 | 360 | 2.9% | 435 | 3.5% |
| Prior CABG | 110 | 0.8% | 730 | 2.9% | < 0.001 | 110 | 0.9% | 80 | 0.6% |
| Prior stroke | 430 | 3.3% | 1375 | 5.5% | < 0.001 | 430 | 3.4% | 425 | 3.4% |
| Hx of smoking | 1779 | 13.6% | 3950 | 15.9% | 0.011 | 1734 | 13.9% | 1744 | 14.0% |
| Hx of heat failure | 45 | 0.3% | 245 | 1.0% | 0.003 | 45 | 0.4% | 45 | 0.4% |
| Pulmonary circ. disease | 20 | 0.2% | 90 | 0.4% | 0.107 | 20 | 0.2 | 15 | 0.1% |
| Peripheral vascular disease | 8829 | 67.5% | 13,100 | 52.6% | < 0.001 | 8344 | 66.5% | 8344 | 66.5% |
| Hospital bed-size | |||||||||
| Small-sized | 764 | 5.8% | 1449 | 5.8% | 0.991 | 714 | 5.7% | 740 | 5.9% |
| Medium-sized | 2374 | 18.1% | 4494 | 18.0% | 2264 | 18.1% | 2279 | 18.3% | |
| Large-sized | 9950 | 76.0% | 18,975 | 76.1% | 9500 | 76.1% | 9460 | 75.8% | |
| Hospital region | |||||||||
| Northeast | 2555 | 19.5% | 5175 | 20.8% | < 0.001 | 2435 | 19.5% | 2480 | 19.9% |
| Midwest or North Central | 4189 | 32.0% | 6845 | 27.5% | 3994 | 32.0% | 3880 | 31.1% | |
| South | 3614 | 27.6% | 7849 | 31.5% | 3454 | 27.7% | 3534 | 28.3% | |
| West | 2729 | 20.9% | 5049 | 20.3% | 2594 | 20.8% | 2584 | 20.7% | |
| Hospital teaching status | |||||||||
| Rural | 145 | 1.1% | 350 | 1.4% | 0.143 | 140 | 1.1% | 130 | 1.0% |
| Urban non-teaching | 1739 | 13.3% | 3615 | 14.5% | 1684 | 13.5% | 1765 | 14.1% | |
| Urban teaching | 11,205 | 85.6% | 20,954 | 84.1% | 10,655 | 85.4% | 10,584 | 84.8% | |
PCI percutaneous coronary intervention, CABG coronary artery bypass grafting, Hx history