Table 3.
Multivariate* analyses of postoperative outcomes
| Primary hypotheses | Without diabetes | Noninsulin-dependent diabetes mellitus | Insulin-dependent diabetes mellitus | p value‡ | |||
|---|---|---|---|---|---|---|---|
| Percent | Relative risk | Percent | Relative risk (95% CI) | Percent | Relative risk (95% CI) | ||
| Serious adverse event | 13% | Reference | 14% | 1.1 (0.9–1.3) | 16% | 1.2 (1.0–1.4) | 0.140 |
| Minor adverse event | 9% | Reference | 11% | 1.2 (1.0–1.4) | 10% | 1.2 (0.9–1.5) | 0.096 |
| Extended length of stay (> 9 days) | 9% | Reference | 10% | 1.1 (0.9–1.3) | 10% | 1.1 (0.9–1.4) | 0.650 |
| Readmission† | 5% | Reference | 7% | 1.4 (1.0–2.0) | 7% | 1.4 (0.9–2.2) | 0.055 |
* Final multivariate analysis controlled for all variables in Table 1; ‡statistical significance set at two-sided α level of 0.05 (p < 0.05); †readmission data available only for 2011–2012.