Who is at risk for developing delirium?

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Who is at risk for developing delirium?

Delirium happens more often in older people and hospitalized patients. “Hospital delirium” can affect 10% to 30% of those patients.

People in these high-risk populations may develop delirium:

  • People who have had surgery.
  • 80% of people who are at the end of life.
  • 70% of people in intensive care units (ICUs).
  • 60% of people over age 75 in nursing homes.
  • 30% to 40% of people who have human immunodeficiency virus (HIV).
  • 25% of people with cancer.

People may also be at higher risk for developing delirium if they:

  • Are on dialysis.
  • Can’t move because of catheters or restraints.
  • Don’t get enough sleep or are dehydrated.
  • Have burns.
  • Have more than one illness, have a chronic condition or take multiple medications.
  • Have Parkinson’s disease, chronic liver disease or had a stroke.
  • Have trouble hearing or seeing.
  • Suddenly stop using alcohol or drugs (withdrawal).

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