Table 4 Multivariable Cox regression analysis of variables influencing survival in all patients and in the sub-group of patients with 3-vessel disease and at least two arterial grafts

 Age

1.076 (1.069–1.082)

0.0001

1.079 (1.071–1.088)

0.0001

 Male gender

0.836 (0.730–0.958)

0.010

0.870 (0.723–1.048)

0.339

 Heart Failure NYHA ≥ 2

1.140 (1.074–1.209)

0.0001

1.194 (1.101–1.296)

0.0001

 Diabetes

1.536 (1.331–1.774)

0.0001

1.634 (1.370–1.949)

0.0001

 LV ejection fraction

0.981 (0.977–0.985)

0.0001

0.978 (0.973–0.983)

0.0001

 Complete revascularization

0.929 (0.840–1.028)

0.154

0.936 (0.822–1.065)

0.314

 Number arterial anastomoses

0.899 (0.828–0.975)

0.011

0.878 (0.793–0.973)

0.013

 Number arterial grafts

1.039 (0.924–1.169)

0.522

1.136 (0.965–1.336)

0.126

 Sequential ITA

0.879 (0.784–0.987)

0.029

0.832 (0.737–0.939)

0.003

 Both ITA

0.951 (0.818–1.105)

0.512

1.103 (0.824–1.477)

0.510

 GEA Graft

0.982 (0.819–1.179)

0.849

0.978 (0.850–1.126)

0.759