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. 2017 Feb 2;5(2):e10. doi: 10.2196/mhealth.6893

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©Jos Hendrikx, Loes S Ruijs, Lieke GE Cox, Paul MC Lemmens, Erik GP Schuijers, Annelies HC Goris. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 02.02.2017.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Boxplot (left-hand panel) of the ratio of cumulative total energy expenditure (TEE) between the Philips health watch (HW) and the K4b2 (K4) reference. The thick black line indicates the mean of the data, the red dashed lines the predefined ±15% equivalence interval, and the other thin black lines represent the calculated 95% CI of equivalence. Right-hand panel: Bland-Altman plot of the cumulative TEE for the HW and the reference. The solid black line indicates the average bias and the dashed black lines represent the 95% limits of agreement. Symbols represent participants’ individual data as indicated in the legend and are the same for both panels.