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Table 4 Significant independent predictive variables for 1-year mortality by multivariate logistic regression analysis

From: Association between older age and outcome after cardiac surgery: a population-based cohort study

Factors OR (95% CI) P value
Pre-operative factors   
Age 65–79 (referent group 18–49 years) 3.01 (1.52-5.98) 0.002
Age ≥80 (referent group 18–49 years) 4.92 (2.32-10.46) <0.001
CHF 2.13 (1.54-2.94) <0.001
Peripheral vascular disease 2.04 (1.40-2.96) <0.001
ESKD on dialysis 6.80 (3.68-12.55) <0.001
EF < 35% (referent group EF > 50%) 1.83 (1.12-3.01) 0.017
Intra-operative factors   
CPB time 1.01 (1.00-1.01) 0.001
Post-operative complications   
Neurologic events 1.82 (1.13-2.93) 0.014
Pulmonary complications 2.14 (1.53-3.00) <0.001
Cardiac arrest 5.38 (3.36-8.62) <0.001
CVICU re-admission 1.61 (1.04-2.48) 0.034
Acute kidney injury on CRRT 6.27 (4.03-9.75) <0.001
  1. OR: odds ratio; CI: confidence interval; CHF: congestive heart failure; CRF: chronic renal failure; EF: ejection fraction; CPB: cardiopulmonary bypass; CRRT: continuous renal replacement therapy; CVICU: cardiovascular surgical intensive care unit.