Received: 13 June 2017
Accepted: 27 June 2018
First Online: 6 July 2018
Ethics approval and consent to participate
: As members of the Carenity platform, patients involved in this study were informed as they registered on the platform, and have consented expressly and specifically to the collection, handling and keeping of their personal and health data. They were also informed before starting the survey of the purpose of the study. The procedures followed for this study were in accordance with the French Law 78–17 of 6 January 1978 and its later amendments and with the 1964 Helsinki declaration and its later amendments.
: Not applicable.
: BA, HG and JL were employees of Mapi at the time of the study. CA was a consultant, now employee of Mapi. MC is founder and CEO of Carenity.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.