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Charlson Comorbidity Index
years
Clinical Context & Background
The Charlson Comorbidity Index predicts the one-year mortality for a patient who may have a range of comorbid conditions, such as heart disease, AIDS, or cancer (a total of 22 conditions). Each condition is assigned a score of 1, 2, 3, or 6, depending on the risk of dying associated with each one.
Formula Logic
Sum of weights for Age + Comorbidities.Reference Data
| Total Score | Est. 10-Year Survival |
|---|---|
| 0 | 98% |
| 1 | 96% |
| 2 | 90% |
| 3 | 77% |
| 4 | 53% |
| 5 | 21% |
| ≥ 6 | < 2% |
Evidence-based oncology decision support. Verify with clinical guidelines.