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. 2021 Apr 28;21:282. doi: 10.1186/s12877-021-02226-6

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 1 — Discriminative performance of visceral fat area vs. body mass index. Legend: In-sample ROC curves for the performance of (1) body mass index and (2) visceral fat area in discriminating between oldest-old adults with and without mobility disability, adjusted for sex. ROC: receiver operating characteristic; AUC-ROC: area under the ROC curve; CI: confidence interval