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. 2023 Jan 2;13:26335565221150124. doi: 10.1177/26335565221150124

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© The Author(s) 2023

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Quantile-quantile scatter plots of percentile ranks for 6 pairwise comparisons between the 4 multi-morbidity scores. For visual reference, the one-to-one diagonal line (black dashed line and black arrow) and the lowess smoothed line (green solid line and green arrow) are shown. Strong agreement between the scores was observed for all 6 comparisons. Abbreviations: CCS = Clinical Classifications Software, 190 chronic condition score; CHAP = Body system chapters (collapsed CCS system), 18 chapters score; DHHS = Department of Health and Human Services, 20 condition score; ELIX = Elixhauser comorbidity index, 31 condition score.