Funding for this research was provided by:
European Regional Development Fund (06/0045)
Instituto de Salud Carlos III (PI10/02658, PI10/02293, PI13/00615, PI14/01668, PI14/01798, PI14/01764, PI17/01795)
Red Temática de Investigación Cardiovascular (G03/140)
Departamento de Salud del Gobierno de Navarra (45/2011, 122/2014, 41/2016)
Received: 11 June 2018
Accepted: 27 September 2018
First Online: 3 October 2018
Compliance with ethical standards
: The present study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures involving participants were approved by the Institutional Review Board of the University of Navarra. All potential participants were duly informed of their right to refuse to participate in the SUN study or to withdraw their consent to participate at any time without reprisal. Special attention was given to the specific information needs of individual potential candidates as well as to the methods used to deliver their information and the feedback that may receive in the future from the research team. After ensuring that the candidate had understood the information, we sought their potential freely given informed consent through their voluntary completion of the baseline questionnaire. These methods were accepted by our Institutional Review Board as to imply an appropriately-obtained informed consent.
: On behalf of all authors, the corresponding author declare no conflict of interest.