Table 5.
Multivariate predictors of mortality.
| Predictors | OR or HR | 95%CI | P-value |
|---|---|---|---|
| 30-day mortality | |||
| Female | 3.74 | 1.03–13.6 | 0.045 |
| Maori/Pacific Islander | 3.25 | 0.82–13.0 | 0.095 |
| New York Heart Association Class IV dyspnoea | 11.4 | 2.58–50.8 | 0.001 |
| Left internal mammary artery graft | 0.06 | 0.01–0.63 | 0.02 |
| Post-operative hs-TnT (per 100ng/L) | 1.07 | 0.93–1.23 | 0.36 |
| hs-TnT >140ng/L | 0.37 | 0.06–2.23 | 0.277 |
| hs-TnT >500ng/L | 0.84 | 0.21–3.34 | 0.803 |
| ECG and/or echocardiographic criteria | 4.68 | 1.28–17.2 | 0.020 |
| hs-TnT >140ng/L + ECG and/or echocardiographic criteria | 4.92 | 1.34–18.1 | 0.017 |
| hs-TnT>500ng/L + ECG and/or echocardiographic criteria | 2.59 | 0.46–14.6 | 0.281 |
| Medium-term mortality | HR | ||
| Estimated glomerular filtration rate (per 10ml/min decrease) | 1.34 | 1.03–1.73 | 0.021 |
| Left internal mammary artery graft | 0.11 | 0.02–0.53 | 0.006 |
| Post-operative hs-TnT (per 100ng/L) | 1.04 | 1.00–1.08 | 0.045 |
| hs-TnT >140ng/L | 1.03 | 0.20–5.41 | 0.970 |
| hs-TnT >500ng/L | 1.51 | 0.51–4.42 | 0.456 |
| ECG and/or echocardiographic criteria | 3.28 | 1.08–9.98 | 0.036 |
| hs-TnT >140ng/L + ECG and/or echocardiographic criteria | 3.44 | 1.13–10.5 | 0.030 |
| hs-TnT >500ng/L + ECG and/or echocardiographic criteria | 2.73 | 0.76–9.80 | 0.123 |
OR = odds ratio, HR = hazards ratio, 95%CI = 95% confidence interval, hs-TnT = high-sensitivity troponin T.