Table 4 Predicting factors for delirium
From: Predisposing factors for delirium in the surgical intensive care unit
% of total | Odds | 95% confidence | |
|---|---|---|---|
Factor patients (n = 818) | ratio* | interval* | |
Disease or symptom variables | |||
Respiratory disease | 14.1 | 30.6 | 9.5–98.4 |
Infection | 14.1 | 18.0 | 3.5–90.8 |
Fever | 26.7 | 14.3 | 4.1–49.3 |
Hypotension | 17 | 19.8 | 5.3–74.3 |
Anemia | 16.4 | 5.4 | 1.6–17.8 |
Laboratory variables | |||
Hypocalcemia | 7.7 | 30.9 | 5.8–163.2 |
Hyponatremia | 11.7 | 8.2 | 2.5–26.4 |
Elevated level of | 10.8 | 4.6 | 1.4–15.6 |
serum urea nitrogen | |||
Elevated level of | 7.3 | 6.3 | 1.2–32.2 |
hepatic enzymes | |||
Hyperamylasemia | 2 | 43.4 | 4.2–442.7 |
Hyperbilirubinemia | 5.5 | 8.7 | 2.0–37.7 |
Metabolic acidosis | 7.6 | 4.5 | 1.1–17.7 |