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. 2017 May 8;4(2):e13. doi: 10.2196/humanfactors.7287

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©Rodrigo Zenun Franco, Balqees Alawadhi, Rosalind Fallaize, Julie A Lovegrove, Faustina Hwang. Originally published in JMIR Human Factors (http://humanfactors.jmir.org), 08.05.2017.

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 Human Factors, is properly cited. The complete bibliographic information, a link to the original publication on http://humanfactors.jmir.org, as well as this copyright and license information must be included.

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Food frequency questionnaire completion time for all devices (n=163) and by device (69 laptops/desktops, 91 smartphones/tablets).