TABLE 4.
Multivariate Analyses
| Variable | OR/Coef | 95% CI | P value |
|---|---|---|---|
| LOS (days) | |||
| ICU | 0.32 | 0.09-0.55 | .007 |
| Total | 1.38 | 0.96-1.80 | <.001 |
| Complications | |||
| PE or DVT | 1.50 | 1.20-1.89 | <.001 |
| Physiological/metabolic derangement | 3.66 | 2.13-6.28 | <.001 |
| Respiratory failure | 1.55 | 1.01-2.40 | .047 |
| Sepsis | 2.12 | 1.39-3.24 | <.001 |
| Charges ($) | |||
| Pharmacy | 356 | -6-717 | .054 |
| Imaging | 416 | 265-568 | <.001 |
| Total | 5846 | 3971-7721 | <.001 |
| 30 d readmit (%) | 1.24 | 0.97-1.58 | .080 |
LOS, length of stay; ICU, intensive care unit; OR, odds ratio; Coef, coefficient of logistic regression equation (represents increase in LOS or $ per point increase in mFI-5 score); PE, pulmonary embolism; DVT, deep vein thrombosis.
Logistic and linear regression models demonstrating the predictive value of mFI-5 on total and ICU LOS, complications, charges, and 30-d readmissions. Variables included in model: Age, race, ethnicity, sex, American Society of Anesthesiologists (ASA) score, diagnosis.
Physiological/metabolic derangement = diabetic ketoacidosis, acute kidney injury.