Validity of information on comorbidity derived rom ICD-9-CCM administrative data.

@article{Quan2002ValidityOI,
  title={Validity of information on comorbidity derived rom ICD-9-CCM administrative data.},
  author={Hude Quan and Gerry A. Parsons and William Ghali},
  journal={Medical care},
  year={2002},
  volume={40 8},
  pages={675-85}
}
BACKGROUND The comorbidity variables that constitute the Charlson index are widely used in health care research using administrative data. However, little is known about the validity of administrative data in these comorbidities. The agreement between administrative hospital discharge data and chart data for the recording of information on comorbidity was evaluated. The predictive ability of comorbidity information in the two data sets for predicting in-hospital mortality was also compared… CONTINUE READING