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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: J Clin Epidemiol. 2011 Jan 5;64(7):749–759. doi: 10.1016/j.jclinepi.2010.10.004

Table 5.

Comorbidity Scores and Their Discrimination for Short- and Long-Term Mortality in the Validation Cohort (NJ/PAAD)

Measure of mortality c-statistic (95% confidence interval)
Romano/Charlson Score van Walraven/Elixhauser Score Combined Score
30-day mortality 0.839 (0.836–0.849) 0.836 (0.834–0.847) 0.860 (0.854–0.866)
90-day mortality 0.808 (0.805–0.813) 0.808 (0.804–0.812) 0.824 (0.820–0.828)
180-day mortality 0.794 (0.791–0.797) 0.790 (0.787–0.794) 0.806 (0.803–0.810)
1-year mortality 0.778 (0.776–0.780) 0.772 (0.770–0.775) 0.788 (0.786–0.791)

Note: Models including Romano/Charlson, van Walraven/Elixhauser, and the combined score are all age- and sex-adjusted.