Table 4.
Odds of adverse outcomes in Canada (USA as reference) for each surgical procedure and outcome in models including and excluding ASA class from models
| Hip fracture | Hip fracture no ASA class | Colectomy | Colectomy no ASA class | |||||
|---|---|---|---|---|---|---|---|---|
| Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | |
| Mortality | 0.856 (0.761–0.964) | 0.010 | 0.938 (0832–1.058) | 0.298 | 1.130 (0.965–1.324) | 0.128 | 1.219 (1.044–1.424) | 0.012 |
| Cardiac event | 1.417 (1.040–1.931) | 0.027 | 1.508 (1.089–2.089) | 0.014 | 1.651 (1.234–2.209) | < 0.001 | 1.740 (1.274–2.377) | < 0.001 |
| Pneumonia | 1.172 (1.023–1.343) | 0.023 | 1.225 (1.078–1.393) | 0.002 | 1.438 (1.233–1.678) | < 0.001 | 1.482 (1.284–1.711) | < 0.001 |
| Renal failure | 0.973 (0.773–1.225) | 0.818 | 0.973 (0.773–1.225) | 0.818 | 1.007 (0.868–1.170) | 0.922 | 1.025 (0.889–1.180) | 0.737 |
| Return to operating room | 0.794 (0.683–0.924) | 0.003 | 0.819 (0.705–0.951) | 0.009 | 1.077 (0.949–1.221) | 0.249 | 1.093 (0.965–1.238) | 0.163 |
| Surgical site infection | 1.568 (1.299–1.892) | < 0.001 | 1.558 (1.298–1.870) | < 0.001 | 1.730 (1.556–1.923) | < 0.001 | 1.732 (1.553–1.931) | < 0.001 |
| Sepsis | 0.775 (0.619–0.971) | 0.027 | 0.806 (0.647–1.004) | 0.055 | 1.120 (0.961–1.306) | 0.146 | 1.141 (0.988–1.318) | 0.072 |
| Unplanned intubation | 0.347 (0.268–0.448) | < 0.001 | 0.375 (0.291–0.482) | < 0.001 | 0.841 (0.689–1.026) | 0.088 | 0.881 (0.734–1.058) | 0.176 |
| Composite | 1.053 (0.941–1.178) | 0.371 | 1.120 (0.998–1.256) | 0.054 | 1.466 (1.363–1.576) | < 0.001 | 1.501 1.388–1.624) | < 0.001 |
| LOS event (> 6-days) | 6.558 (5.365–8.017) | < 0.001 | 6.702 (5.524–8.132) | < 0.001 | 1.678 (1.518–1.848) | < 0.001 | 1.718 (1.558–1.894) | < 0.001 |
| Readmission | 0.458 (0.402–0.521) | 0.467 (0.412–0.530) | < 0.001 | 0.850 (0.793–0.911) | < 0.001 | 0.864 (0.804–0.928) | < 0.001 | |
| Pancreatectomy | Pancreatectomy no ASA class | Spine surgery | Spine surgery no ASA class | |||||
| Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | Canada OR (95% CI) | P-value | |
| Mortality | 1.873 (1.107–3.171) | 0.020 | 2.112 (1.257–3.550) | 0.005 | 0.739 (0.492–1.110) | 0.144 | 0.855 (0.569–1.286) | 0.452 |
| Cardiac event | 2.271 (1.128–4.571) | 0.022 | 2.717 (1.267–5.828) | 0.010 | 1.017 (0.758–1.363) | 0.913 | 1.124 (0.852–1.483) | 0.406 |
| Pneumonia | 2.751 (1.492–5.074) | 0.001 | 2.912 (1.536–5.523) | 0.001 | 0.963 (0.506–1.833) | 0.909 | 1.085 (0.567–2.078) | 0.804 |
| Renal failure | 2.019 (1.227–3.324) | 0.006 | 2.019 (1.227–3.324) | 0.006 | 0.676 (0.425–1.076) | 0.099 | 0.725 (0.461–1.140) | 0.163 |
| Return to operating room | 1.347 (0.924–1.964) | 0.121 | 1.444 (1.015–2.053) | 0.041 | 1.155 (0.984–1.354) | 0.077 | 1.195 (1.020–1.400) | 0.027 |
| Surgical site infection | 1.448 (1.231–1.703) | < 0.001 | 1.494 (1.267–1.762) | < 0.001 | 2.007 (1.540–2.614) | < 0.001 | 2.059 (1.578–2.687) | < 0.001 |
| Sepsis | 0.747 (0.558–1.001) | 0.051 | 0.786 (0.589–1.050) | 0.103 | 0.714 (0.462–1.105) | 0.131 | 0.771 (0.504–1.180) | 0.230 |
| Unplanned intubation | 0.952 (0.533–1.700) | 0.868 | 1.112 (0.633–1.951) | 0.711 | 0.744 (0.587–0.942) | 0.014 | 0.839 (0.658–1.071) | 0.159 |
| Composite | 1.437 (1.196–1.727) | < 0.001 | 1.519 (1.253–1.841) | < 0.001 | 1.413 (1.186–1.684) | < 0.001 | 1.485 (1.252–1.761) | < 0.001 |
| LOS event (> 6-days) | 1.924 (1.381–2.680) | < 0.001 | 2.069 (1.559–2.748) | < 0.001 | 1.757 (1.234–2.502) | 0.002 | 1.871 (1.314–2.664) | < 0.001 |
| Readmission | 0.778 (0.646–0.937) | 0.008 | 0.799 (0.661–0.965) | 0.020 | 0.691 (0.611–0.782 | < 0.001 | 0.727 (0.645–0.818) | < 0.001 |
Bold values indicate statistical significance (P < 0.05)