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. 2019 Jan 31;21(1):e12790. doi: 10.2196/12790

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©Jen-Kuang Lee, Chi-Sheng Hung, Ching-Chang Huang, Ying-Hsien Chen, Pao-Yu Chuang, Jiun-Yu Yu, Yi-Lwun Ho. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 31.01.2019.

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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Kaplan-Meier curve of cardiovascular hospitalization according to CHA₂DS₂-VASc scores. The overall estimated rate of cardiovascular hospitalization was 54.8% and 46.5% in patients with CHA₂DS₂-VASc score ≤3 and ≥4, respectively (log-rank test P=.003). The dotted lines represented the error bars of 95% CI in both figures. CV: cardiovascular; CHA₂DS₂-VASc: congestive heart failure, hypertension, age >75 years (doubled), type 2 diabetes mellitus, previous stroke, transient ischemic attack or thromboembolism (doubled), vascular disease, age of 65-75 years, and sex.