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. 2022 Dec 31;12:22625. doi: 10.1038/s41598-022-27254-z

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© The Author(s) 2022

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/.

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ECG-derived age vs. chronological age for 36,349 participants of the UKB. The Pearson correlation coefficient was 0.53. The red dashed line illustrates a perfect fit. Data is grouped into boxes as the chronological age at the time of recording the ECG was only available as the number of years. Note that ranges and scales are different between the x- and y-axis due to outliers in the predicted age being considerably outside the range of the chronological age in the cohort. Box plot features: blue centre lines, median; box limits, first and third quartile; whiskers, $1.5 \times$ inter-quartile range; markers, outliers.