| Analysis of maximum likelihood estimates | odds ratio/p-deviance | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Parameter | Entry | df | estimate | std. error | Wald χ2 | Pr > chi square | std. estimate | point estimate | 99% Wald CI | 99% Wald CI |
(a) Medication vs. PTCA | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Constant | 0 | 1 | 1.131 | 1.454 | 0.606 | 0.437 | . |  |  |  |
   LAD artery disease | 1 | 1 | 0.970 | 0.240 | 16.374 | < 0.001 | 0.536 | 2.639 | 1.423 | 4.894 |
   Previous intervention | 2 | 1 | 1.093 | 0.322 | 11.536 | 0.001 | . | 8.896 | 1.696 | 46.675 |
   Increasing age | 3 | 1 | -0.065 | 0.021 | 9.364 | 0.002 | -0.397 | 0.937 | 0.887 | 0.990 |
   Hypertension | 4 | 1 | -0.664 | 0.229 | 8.373 | 0.004 | . | 0.265 | 0.081 | 0.864 |
   Angina frequency | 5 | 1 | 0.883 | 0.341 | 6.694 | 0.010 | 0.337 | 2.418 | 1.004 | 5.822 |
(b) PTCA vs. CABG | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Intercept | 0 | 1 | -1.889 | 0.710 | 7.091 | 0.008 | . |  |  |  |
   SIP: Mobility range | 1 | 1 | 0.475 | 0.112 | 17.868 | < 0.001 | 0.667 | 1.607 | 1.204 | 2.147 |
   Circumflex artery disease | 2 | 1 | 0.756 | 0.215 | 12.345 | < 0.001 | 0.490 | 2.128 | 1.223 | 3.704 |
   Previous intervention | 3 | 1 | -1.246 | 0.337 | 13.674 | < 0.001 | . | 0.083 | 0.015 | 0.469 |
   Higher educational attainment | 4 | 1 | -0.661 | 0.204 | 10.545 | 0.001 | -0.441 | 0.516 | 0.305 | 0.872 |
(c) Medication vs. CABG | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Intercept | 0 | 1 | -8.831 | 1.548 | 32.561 | < 0.001 | . |  |  |  |
   LAD artery disease | 1 | 1 | 1.616 | 0.373 | 18.804 | < 0.001 | 0.853 | 5.034 | 1.927 | 13.150 |
   Previous cerebral events | 2 | 1 | -2.463 | 0.707 | 12.127 | 0.001 | . | 0.007 | 0.000 | 0.277 |
   SIP: Mobility range | 3 | 1 | 0.620 | 0.162 | 14.761 | < 0.001 | 0.870 | 1.859 | 1.227 | 2.818 |
   Circumflex artery disease | 4 | 1 | 1.095 | 0.293 | 13.991 | < 0.001 | 0.661 | 2.991 | 1.406 | 6.359 |