Table 6.

Multivariable Cox regression for factors affecting survival, cardiac readmission, and reoperation (proportional hazard assumption test P=0.948, 0.144 and 0.929).

Survival	HR	P-value	95% CI
Group	1.138	0.844	0.316-4.1
Age	1.083	0.002	1.029-1.141
Readmission
Group	0.582	0.259	0.228-1.49
EuroSCORE II	1.030	0.126	0.992-1.070
Reoperation
Group	0.042	0.01	0.004-0.474
Age	0.981	0.564	0.921-1.045