Table 4.
Multivariable analysis of 30-day mortality in ICU patients
| Variable | OR | SE | 95% Conf. Int. | P > [z] |
|---|---|---|---|---|
| A. All patients | ||||
| LOS Strata | 1.41 | 0.06 | 1.288 – 1.535 | 0.0000 |
| Age Strata | 1.87 | 0.13 | 1.622 – 2.146 | 0.0000 |
| ICU Readmission | 1.62 | 0.22 | 1.242 – 2.122 | 0.0000 |
| Medical vs. Surgical | 8.42 | 1.16 | 6.435 – 11.02 | 0.0000 |
| RRT | 1.42 | 0.24 | 1.018 – 1.991 | 0.0390 |
| Code Blue | 8.48 | 2.51 | 4.748 – 15.134 | 0.0000 |
| 24-hr Delay Admit | 0.84 | 0.14 | 0.599 – 1.169 | 0.2960 |
| B. Medical patients | ||||
| LOS Strata | 1.34 | 0.07 | 1.209 – 1.48 | 0.0000 |
| Code Blue | 6.09 | 1.85 | 3.349 – 11.055 | 0.0000 |
| RRT | 1.30 | 0.23 | 0.917 – 1.853 | 0.1390 |
| 24-hr Delay Admit | 0.77 | 0.14 | 0.536 – 1.099 | 0.1480 |
| Age Strata | 1.68 | 0.13 | 1.438 – 1.958 | 0.0000 |
| C. Surgical patients | ||||
| LOS Strata | 1.54 | 0.14 | 1.296 – 1.835 | 0.000 |
| Age Strata | 2.45 | 0.37 | 1.829 – 3.294 | 0.000 |
| ICU Readmission | 2.57 | 0.67 | 1.541 – 4.282 | 0.000 |
| PM Admission | 2.36 | 0.67 | 1.356 – 4.121 | 0.002 |
| RRT | 1.72 | 0.81 | 0.68 – 4.326 | 0.253 |
| 24-hr Delay Admit | 0.97 | 0.41 | 0.426 – 2.225 | 0.950 |
| Code Blue | 30.33 | 20.33 | 8.154 – 112.838 | 0.000 |
Multi-variable logistic regression of clinical characteristics and their impact on 30-day mortality. Analysis of all patients in the study is presented in A, while medical patients are presented in B, and surgical patients are described in C. Abbreviations: OR, odds ratio; SE, standard error of measurement; ICU, intensive care unit; LOS, length of stay; RRT, renal replacement therapy. Analysis of 90-day and 1-year mortality is presented in the supplemental data file (available online).