Table 3 Operation characteristics between the male and female patients in tranexamic acid before and after propensity score matching
Surgery data | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
Female (n = 6905) | Male (n = 22,631) | p-value | Female (n = 6808) | Male (n = 6808) | p-value | |
CABGs by experienced surgeons (≥ 100 CABGs / year), n (%) | 3692(53.5) | 12,186(53.8) | 0.581 | 3628(53.3) | 3641(53.5) | 0.838 |
Operation year (2009–2014), n (%) | 2561(37.1) | 8437(37.3) | 0.773 | 2509(36.9) | 2452(36.0) | 0.319 |
Operation year (2015–2019), n (%) | 4344(62.9) | 14,194(62.7) | 0.773 | 4299(63.1) | 4356(64.0) | 0.319 |
High risk operation, n (%) | 1420(20.6) | 4190(18.5) | < 0.0001 | 1397(20.5) | 1408(20.7) | 0.832 |
Emergent surgery, n (%) | 233(3.4) | 647(2.9) | 0.027 | 226(3.3) | 212(3.1) | 0.529 |
Elective, n (%) | 6672(96.6) | 21,984(97.1) | 0.027 | 6582(96.7) | 6596(96.9) | 0.529 |
Isolated CABG, n (%) | 5710(82.7) | 19,110(84.4) | 0.001 | 5632(82.7) | 5612(82.4) | 0.667 |
On-pump, n (%) | 4365(63.2) | 14,202(62.8) | 0.488 | 4312(63.3) | 4328(63.6) | 0.790 |
Open-chamber, n (%) | 1172(17.0) | 3411(15.1) | < 0.0001 | 1153(16.9) | 1172(17.2) | 0.681 |
Heparin neutralization ratio, mean ± SD | 1.41 ± 0.50 | 1.33 ± 0.46 | < 0.0001 | 1.40 ± 0.50 | 1.40 ± 0.48 | 0.766 |
Duration of surgery (min), mean ± SD | 286.36 ± 84.72 | 293.40 ± 85.88 | < 0.0001 | 286.48 ± 84.65 | 290.43 ± 87.38 | 0.007 |