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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Cancer. 2018 Feb 1;124(9):2018–2025. doi: 10.1002/cncr.31269

Table 5.

Comparison of Comorbidity Scores in the Validation Sample, Akaike Information Criterion (AIC)a

Breast Prostate Lung Colorectal
N = 9,691 N = 11,698 N = 13,243 N = 8,649
Baseline model 9702 8400 35827 17441
Elixhauser comorbidity score
  Individual Elixhauser comorbidities 9539 8241 35726 17211
  Summary Elixhauser comorbidity score 9552 8266 35731 17237
  Cancer-specific summary Elixhauser comorbidity score 9522 8253 35735 17208
Charlson comorbidity score / NCI combined index
  Individual Charlson comorbidities 9551 8261 35754 17241
  Summary Charlson comorbidity score 9558 8283 35752 17253
  Cancer-specific summary Charlson comorbidity score or NCI combined index 9566 8259 35743 17240
a

The lower AIC indicates a better model fit.