Charlson Comorbidity Index

yr
Health

Calculate the Charlson Comorbidity Index to predict 10-year mortality based on comorbidities.

Formula

CCI = sum of weighted comorbidities. Age bonus: <40=0, 40s=1, 50s=2, 60s=3, ≥70=4
  • 10-yr survival: e^(0.983^(ageAdj×0.9))×100.
  • Charlson ME et al. J Chronic Dis 1987;40:373.

60-year-old with CHF and DM

Inputs
  • Congestive Heart Failure: 1
  • Diabetes (no end-organ damage): 1
  • Age: 63 yr

Score = 2. Age bonus = 2. Age-adjusted = 4.

Frequently asked questions

What is the CCI used for?
CCI is used to adjust for comorbidity burden in clinical research, guide treatment intensity decisions, and predict long-term survival.