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. 2020 Jun 5;22(6):e18585. doi: 10.2196/18585

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©Cheng-Sheng Yu, Yu-Jiun Lin, Chang-Hsien Lin, Shiyng-Yu Lin, Jenny L Wu, Shy-Shin Chang. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 05.06.2020.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Flowchart of data collection and preprocessing for MetS and CKD data sets including training and validation sets. SAS Enterprise Guide is a software that combines the analytic ability of SAS software with a user-friendly interface. It provides several functions of Structured Query Language (SQL), which includes a text mining technique. ACC: accuracy; AUC: area under the curve; BUN: blood urea nitrogen; CKD: chronic kidney disease; KNN: k-nearest neighbors algorithm; MetS: metabolic syndrome; UA: uric acid. * Centers for Disease Control and Prevention (CDC) and National Center for Health Statistics (NCHS) [37], ** Iimori et al [39], *** De Nicola et al [38].