Groll et al developed the Functional Comorbidity Index (FCI) to identify a patient at risk for impaired physical function. The authors are from Queen's University in Kingston, Ontario.


Outcome: physical function


Comorbid conditions of the FCI:

(1) obesity (body mass index > 30 kg per square meter)

(2) degenerative intervertebral disc disease (chronic low back pain)

(3) anxiety or panic disorder

(4) depression

(5) diabetes mellitus (Type 1 or 2)

(6) peripheral arterial disease (PAD)

(7) heart failure

(8) acute myocardial infarction

(9) angina

(10) arthritis (osteoarthritis, rheumatoid, other)

(11) osteoporosis

(12) asthma

(13) lung disease (COPD, emphysema, acute respiratory distress, etc)

(14) stroke or transient ischemic attack (TIA)

(15) other neurologic disorder (Parkinson;s disease, multiple sclerosis, etc)

(16) upper gastrointestinal disease (reflux disease, peptic ulcer, etc)

(17) visual impairment (glaucoma, cataract, macular degeneration)

(18) hearing impairment



• Some items reflect organ dysfunction (heart, lung, etc).

• There are other conditions affecting physical function that are not listed.


total comorbidity score =

= SUM(number of items present)



• minimum score: 0

• maximum score: 18

• The higher the score the greater the comorbidity and the greater the risk of functional impairment.


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