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Risk factors for delirium in ICU patients |
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| Host factors |
Factors of critical illness |
Iatrogenic factors |
|
|
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| Age (older) |
Acidosis |
Immobilization (for example, catheters, restraints) |
| Alcoholism |
Anemia |
Medications (for example, opioids, benzodiazepines) |
| APOE4 polymorphism |
Fever/infection/sepsis |
Sleep disturbances |
| Cognitive impairment |
Hypotension |
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| Depression |
Metabolic disturbances (for example, sodium, calcium, BUN, bilirubin) |
|
| Hypertension |
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| Smoking |
Respiratory disease |
|
| Vision/hearing impairment |
High severity of illness |
|
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The table includes factors associated with delirium in both intensive care unit (ICU) and non-ICU studies. APOE4, apolipoprotein E4; BUN, blood urea nitrogen. | ||
Girard et al. Critical Care 2008 12(Suppl 3):S3 doi:10.1186/cc6149 |
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