Table 1: Predisposing factors for delirium.
| Demographic characteristics |
| • Age of 65 years or older |
| • Male sex |
| Cognitive status |
| • Dementia |
| • Cognitive impairment |
| • History of delirium |
| • Depression |
| Functional status |
| • Functional dependence |
| • Immobility |
| • Low level of activity |
| • History of falls |
| Sensory impairment |
| • Visual impairment |
| • Hearing impairment |
| Decreased oral intake |
| • Dehydration |
| • Malnutrition |
| Drugs |
| • Treatment with multiple psychoactive drugs |
| • Treatment with many drugs |
| • Alcohol abuse |
| Coexisting medical conditions |
| • Severe illness |
| • Multiple coexisting conditions |
| • Chronic renal or hepatic disease |
| • History of stroke |
| • Neurologic disease |
| • Metabolic derangements |
| • Fracture or trauma |
| • Terminal illness |
| • Infection with human immunodeficiency virus |