Table 4

Covariate estimates produced by Cox pH model of survival, n=6921 (4410 observations not used due to missingness

CovariateHRP value95% CI
Previous PCIYes1.0580.59(0.86 to 1.30)
Age1.063<0.001(1.05 to 1.07)
SexFemale0.8860.044(0.79 to 1.00)
HypertensionTreated0.7650.007(0.63 to 0.93)
Ejection fractionFair1.1910.005(1.05 to 1.35)
Poor1.968<0.001(1.54 to 2.51)
Angina statusCCS 20.8920.11(0.78 to 1.02)
CCS 30.9430.43(0.82 to 1.09)
CCS 40.8870.17(0.75 to 1.05)
Dyspnoea statusNYHA 21.0240.72(0.90 to 1.16)
NYHA 31.302<0.001(1.14 to 1.49)
NYHA 41.0930.47(0.86 to 1.39)
Previous MIOne1.0300.61(0.92 to 1.15)
Two or more1.2680.002(1.09 to 1.47)
Diabetes (any)Yes1.393<0.001(1.25 to 1.55)
Smoking statusEx-smoker1.389<0.001(1.24 to 1.56)
Current smoker1.726<0.001(1.44 to 2.06)
Renal failureYes, no dialysis1.4330.050(1.00 to 2.05)
Yes, dialysis3.434<0.001(2.01 to 5.87)
Transplant33.91<0.001(10.7 to 108)
History of pulmonary diseaseYes1.1980.009(1.05 to 1.37)
Extracardiac arteriopathyYes1.378<0.001(1.21 to 1.56)
No of distal arteries(log)0.8540.037(0.74 to 0.99)
Euroscore1.098<0.001(1.06 to 1.13)
Bypass time1.0020.067(1.00 to 1.00)
Clamp time0.9950.007(0.99 to 1.00)
  • CCS, Canadian Cardiovascular Society grading for angina pectoris; MI, myocardial infarction; PCI, percutaneous coronary intervention.