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. 2018 Sep 12;19:230. doi: 10.1186/s12882-018-1032-0

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© The Author(s). 2018

Open Access This 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. 1 — Study design. Questionnaires: Demographics, age, sex, race, ethnicity, education, if employed/actively working, cause of CKD, vascular access yes/no, other comorbidities, medications; Symptoms of Depression (CEDS-20), SF-12, Physical activity self-efficacy questionnaires; CKD Chronic Kidney Disease, PA Physical activity’