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. 2016 Aug 16;16:388. doi: 10.1186/s12913-016-1636-7

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© Nickel et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Claim Sources Used to Define Comorbidities in Final Algorithm* Among Those Positive for the Comorbidity. INP = inpatient facility claim, OP/MD = outpatient facility or provider claim, Rx = prescription drug claim. *algorithm 3 for deficiency anemia and obesity, algorithm 4 for diabetes, hypertension, and smoking