Table 3.
Predictors of 30-day mortality rate
| β | Standard error | Wald | Df | p* | Odds ratio |
95% CI for Odds ratio | |
|---|---|---|---|---|---|---|---|
| Cognitive deficits | 1.40 | 0.63 | 4.91 | 1.00 | 0.03* | 4.06 | 1.18–14.04 |
| Depressive symptoms | −18.82 | 7,720.98 | 0.00 | 1.00 | 1.00 | 0.00 | 0.00 |
| Frailty symptoms | 1.35 | 0.78 | 2.96 | 1.00 | 0.09 | 3.84 | 0.83–17.76 |
| Age | 0.01 | 0.05 | 0.09 | 1.00 | 0.77 | 1.01 | 0.92–1.12 |
| General anesthesiaǂǂ | 1.19 | 0.72 | 2.73 | 1.00 | 0.10 | 3.30 | 0.80–13.57 |
| Constant | −5.43 | 4.14 | 1.72 | 1.00 | 0.19 | 0.00 |
Notes: ǂǂ Compared to local anesthesia under conscious sedation. *p significance, p<0.05. Without SMARTIE: The model (χ2(5) =13.3, p=0.02), explained 15.9% (Nagelkerke R2) of the variance in predicting mortality, correctly classifying 94.4% of cases. It was a good fit to the data (p=0.31) on the Hosmer & Lemeshow test of the goodness of fit.