The Charlson comorbidity index (CCI) for adjustment of hip fracture mortality in the elderly: analysis of the importance of recording secondary diagnoses

Cadernos de Saúde Pública

Rômulo Cristovão De Souza²  Rejane Sobrino Pinheiro¹  Cláudia Medina Coeli¹  Kenneth Rochel De Camargo Jr.¹ 

[1] ,Fundação Educacional Serra dos ÓrgãosTeresópolis,Brasil

关键词: Femoral Fractures;    Comorbidity;    Mortality;    Fraturas do Fêmur;    Comorbidade;    Mortalidade;   

DOI  :  10.1590/S0102-311X2008000200010

来源: SciELO

【 摘 要 】

This study evaluates the role of the number of secondary diagnoses for calculating the Charlson comorbidity index (CCI) in risk adjustment of the 90-day mortality rate after hip fracture surgical repair. Comorbidities were selected by reviewing the medical records of 390 patients 50 years of age or older in a teaching hospital in Rio de Janeiro from 1995 to 2000. Logistic regression models were fitted including the variables age, sex, and CCI. The CCI was calculated based on: (1) all patients' comorbidities; (2) only the comorbidity with the highest weight; and (3) a single randomly selected comorbidity. There was a gradient in the prediction of the CCI mortality rate when all comorbidities were used (OR = 6.53; 95%CI: 2.27-18.77, for scores ³ 3). The predictive capacity of the CCI was observed even when it was calculated using only one comorbidity: with the highest weight (OR = 2.83; 95%CI: 1.11-7.22); and randomly selected (OR = 2.90; 95%CI: 1.07-7.81). Using all comorbidities for CCI calculation is important. Severity indices based on a single comorbidity can be useful for risk adjustment procedures.

【 授权许可】

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