Multivariable logistic regression analysis for overall delirium and longer delirium episodes
| Variable | OR (95% CI) | |
|---|---|---|
| Overall delirium | Longer delirium episodes | |
| Appendix surgery | 5.26 (1.40–19.75) | — |
| Intestinal surgery | 4.74 (1.86–12.08) | — |
| Mild to moderate frailty | 4.50 (1.76–11.50) | 7.77 (2.18–27.65) |
| Gallbladder surgery | 4.48 (1.41–14.17) | — |
| Foley catheter use | 3.37 91.36–8.35) | 4.48 (1.76–11.50) |
| Intensive care unit admission | 1.37 (1.06–1.78) | — |
CI = confidence interval; OR = odds ratio.