Description

Inouye et al developed a simple risk score for predicting if an elderly patient who develops delirium as a hospital inpatient will be discharged with delirium. This can help identify a patient who may require more aggressive management. The authors are from Beth Israel Deaconess Medical Center, Harvard University, Hebrew SeniorLife and Brigham and Women's Hospital.


Patient selection: age >= 70 years AND admitted without delirium AND developed delirium in the hospital

 

Parameters:

(1) dementia

(2) vision

(3) functional impairment

(4) comorbidity (based on the Charlson comorbidity score)

(5) physical restraint during hospital delirium

 

Parameter

Finding

Points

dementia

absent

0

 

present

1

vision

not impaired

0

 

impaired

1

functional impairment

none or 1 activity of daily living

0

 

>= 2 ADL

1

comorbidity

Charlson < 4

0

 

Charlson >= 4

1

physical restraint for delirium

not used

0

 

used

1

 

where:

• Visual impairment was defined as a corrected near vision worse than 20/70.

• Dementia was based on the Blessed Dementia Rating Scale (score >= 4).

 

total score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 5

• The higher the score the more likely the person is to be delirious at discharge.

 

Total Score

Risk of Delirium

Percent Affected

0 or 1

low

4%

2 or 3

intermediate

18%

4 or 5

high

63%

 


To read more or access our algorithms and calculators, please log in or register.