Table 2.
Distribution of Summary Comorbidity Scores in the Cohort
| Comorbidity Score | Mean (SD) | % with 0 | 25th Percentile |
Median | 75th Percentile |
Minimum | Maximum |
|---|---|---|---|---|---|---|---|
| CCS original | 1.7 (2.0) | 34.9 | 0 | 1 | 3 | 0 | 17 |
| CCS/Schneeweiss | 2.3 (2.7) | 36.3 | 0 | 1 | 4 | 0 | 20 |
| CCS/Quan | 1.4 (1.9) | 51.6 | 0 | 0 | 2 | 0 | 15 |
| Royal College of Surgeons CCS | 1.6 (1.1) | 35.1 | 0 | 1 | 2 | 0 | 3 |
| Elixhauser summary score | 4.7 (6.8) | 35.3 | 0 | 2 | 7 | −11 | 49 |
| Combined Comorbidity Score | 1.2 (2.3) | 30.4 | 0 | 0 | 2 | −2 | 17 |
| CMS-HCC | 2.7 (1.7) | 0 | 1.4 | 2.2 | 3.5 | 0.3 | 15.4 |
| CDS | 2.4 (1.5) | 3.7 | 1.3 | 2.2 | 3.2 | −1.2 | 10.7 |
Abbreviations: CCS, Charlson comorbidity score; CMS-HCC, Center for Medicare & Medicaid – Hierarchical Conditions Categories; CDS, chronic disease score