Table 2.

In-hospital outcomes of the female versus male patients before and after propensity score matching

Cohort/outcome/surgical type	Female	Male	OR/HR/SHR for female (95% CI)	P
Before matching
In-hospital mortality during admission
Isolated CABG	862 (8.8)	2111 (6.5)	1.37 (1.26 to 1.49)	<0.001*
Isolated valve	582 (6.8)	649 (6.2)	1.10 (0.98 to 1.24)	0.094
CABG+valve	262 (15.8)	471 (13.6)	1.19 (1.01 to 1.40)	0.036
New onset stroke during admission
Isolated CABG	332 (3.4)	872 (2.7)	1.26 (1.11 to 1.43)	0.001*
Isolated Valve	241 (2.8)	352 (3.4)	0.83 (0.71 to 0.98)	0.031
CABG+valve	65 (3.9)	136 (3.9)	1.00 (0.74 to 1.35)	0.989
New onset dialysis during admission
Isolated CABG	974 (9.9)	2383 (7.4)	1.38 (1.28 to 1.49)	<0.001*
Isolated valve	506 (5.9)	599 (5.7)	1.04 (0.92 to 1.17)	0.575
CABG+valve	264 (15.9)	414 (12.0)	1.40 (1.18 to 1.65)	<0.001*
After matching
In-hospital mortality during admission
Isolated CABG	853 (8.7)	770 (7.8)	1.12 (1.01 to 1.24)	0.031
Isolated Valve	500 (6.8)	422 (5.7)	1.20 (1.05 to 1.37)	0.008*
CABG+valve	234 (15.3)	227 (14.9)	1.04 (0.85 to 1.26)	0.723
New onset stroke during admission
Isolated CABG	330 (3.4)	297 (3.0)	1.11 (0.95 to 1.31)	0.182
Isolated valve	203 (2.8)	254 (3.4)	0.79 (0.66 to 0.96)	0.016
CABG+valve	57 (3.7)	67 (4.4)	0.84 (0.58 to 1.22)	0.370
New onset dialysis during admission
Isolated CABG	966 (9.84)	967 (9.85)	1.00 (0.91 to 1.10)	0.981
Isolated valve	419 (5.7)	421 (5.7)	1.00 (0.87 to 1.14)	0.943
CABG+valve	228 (14.9)	187 (12.2)	1.26 (1.02 to 1.55)	0.031

*Significant after Bonferroni adjustment for type I error inflation (p<0.0083).

CABG, coronary artery bypass graft; SHR, subdisribution HR.