Multivariate regression analysis: short-term outcomes
Stepwise multivariate regression models were constructed to assess the effects of covariates on the main outcomes of interest, namely mortality, length of stay, re-operation and composite measure of complications (Table 4).
Importantly, the use of PAR over CVG did not increase the risk of operative death, re-operation, composite complications or length of hospital stay.
The only co-variate found to be a predictor of short-term complications was the Euroscore (odd ratio, OR 0.91, 95% CI 0.84–0.99, p=0.033).