Skip to main content
. Author manuscript; available in PMC: 2021 Aug 30.
Published in final edited form as: Eur J Surg Oncol. 2019 May 15;45(10):1983–1992. doi: 10.1016/j.ejso.2019.05.009

Table 5A.

Stepwise Cox Regression Results for the Hazard Rate of Death Due to a Post-Operative Complication (Clavien Grade=5 ).

Note: (√) Represents Selection into the Cox Model.
Univariable Multivariable Model2
Baseline Variable1: P-value P-value Coeff ± SE
Cardiopulmonary Bypass .0002 (√) .0003 1.487±0.450
Log {Serum Creatinine Level} .0003 (√) .0006 1.264±0.371
1

The 2 variables selected into the stepwise Cox model were defined as follows: Cardiopulmonary Bypass={1 if Cardiopulmonary Bypass was performed, 0 otherwise}; and Log {Serum Creatinine Level} (continuous variable). The order of selection for the 2 selected variables are shown as listed in the table.

2

Note that if Propensity Score for the TB approach was retained first in the logistic model, then the same 2 variable model would still be selected.