Table 1.

Charlson Comorbidity Index (CCI)

Score	Condition
1	Coronary artery diseasea Congestive heart failure Chronic pulmonary disease Peptic ulcer disease Peripheral vascular disease Mild liver disease Cerebrovascular disease Connective tissue disease Diabetes mellitus Dementia
2	Hemiplegia Moderate to severe renal disease Diabetes with end-organ damage Any prior tumor (within 5-years of diagnosis)b Leukemia Lymphoma
3	Moderate to severe liver disease
6	Metastatic solid tumor AIDS (not only HIV positive)

Adapted from Birim O, EJCTS 2003 with permission