• Population: Community-dwelling adults aged 65 years and older
• Outcome: All cause 1 year mortality
• Scroll to the bottom for more detailed information

• The items have been adapted from Romano's^a adaption of the Charlson Index along with conditions included in the Elixhauser^b system.
• (a) Romano PS, Roos LL, Jollis JG. Adapting a clinical comorbidity index for use with ICD-9-CM administrative data: differing perspectives.
• J Clin Epidemiol 1993;46:1075e9; discussion 1081e90.
• (b) Elixhauser A, Steiner C, Harris DR, Coffey RM. Comorbidity measures for use with administrative data. Med Care 1998;36:8e27.
• Discrimination: This risk calculator sorts patients who died from patients who lived correctly 79% of the time (c-statistic).
  
• Citation: Gagne JJ, Glynn RJ, Avorn J, Levin R, Schneeweiss S. A combined comorbidity score predicted mortality in elderly patients better than existing scores. J Clin Epidemiol. Jul 2011;64(7):749-759.

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