Schneeweis et al adjusted weights assigned to various comorbid conditions in the Charlson Comorbidity Index (CCI) based on risk seen in patients from New Jersey.The authors are from Brigham and Women's Hospital.
Patient selection: Medicare (primarily >= 65 years)
Condition
Original CCI
Adjusted Weight
acute myocardial infarction
1
1
congenital heart disease
1
2
peripheral vascular disease
1
1
cerebrovascular disease
1
1
dementia
1
3
chronic pulmonary disease
1
2
connective tissue disease
1
0
ulcer disease
1
0
mild liver disease
1
2
moderate/severe liver disease
3
4
diabetes without end-organ damage
1
1
diabetes with end-organ damage
2
2
hemiplegia
2
1
moderate or severe renal disease
2
3
any tumor without metastases
2
2
metastatic solid tumor
6
6
leukemia
2
2
lymphoma
2
2
AIDS
6
4
where:
• Leukemia and lymphoma were included in the "any tumor" category.
total comorbidity =
= SUM(points assigned to all conditions)
Interpretation:
• minimum score: 0
• maximum score: 32
• The higher the total score the greater the risk for the patient.
• Each point reflects a 35% greater risk of dying in the follow-up year.
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