Table 5: Multivariate Cox regression analysis of variables influencing survival in the 668 matched patients (Chi-square 204,030; df 11; p = 0.0001).

Predictor

RC

HR (95 % CI)

P Value

Preoperative

Age

1.077

1.063-1.091

0.001

Male gender

0.912

0.683-1.219

0.536

Heart Failure NYHA 2

1.157

1.002-1.335

0.047

Diabetes

1.315

0.975-1.775

0.073

3-vessel disease

1.306

0.887-1.923

0.177

Left Main

1.196

0.905-1.580

0.208

LV ejection fraction

0.977

0.967-0.986

0.001

Intraoperative

Complete revascularization

0.83

0.589-1.170

0.287

Sequential ITA

0.628

0.424-0.931

0.021

Associated vein

0.683

0.417-1.118

0.129

Number of distal anastomoses

1.236

0.779-1959

0.369

RC: Regression Coefficient; HR: Hazard Ratio; CI: Confidence Interval; NYHA: New York Heart Association; LV: Left Ventricular; ITA: Internal Thoracic Artery