Bloem, Sjaak
Stalpers, Joost
Groenland, Edward A. G.
van Montfort, Kees
van Raaij, W. Fred
de Rooij, Karla http://orcid.org/0000-0002-8845-5653
Article History
Received: 18 February 2020
Accepted: 20 July 2020
First Online: 8 August 2020
Change Date: 11 April 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12913-022-07756-2
Ethics approval and consent to participate
: Informed consent (see ExternalRef removed).For every research within GfK, informed consent is organized as follows.- Only the respondents who declare to have no objection to their responses being used for research, will be selected for the research.- The following question has been presented to the panelists:○ ‘We would like to ask you some questions concerning your personal health. For this subject it is necessary, as a part of the Personal data protection act, to ask your specific permission to use your responses for research. The information you provide will of course be handled with strict confidentiality. Do you give permission to process your responses to the questions about your personal health as described above?1. Yes2. No [<i>Screenout</i>]Only the respondents who answered ‘Yes’ have been incorporated in the present research.The need for ethics approval for this research is not applicable according to national regulations (ExternalRef removed).The research is completely in line with the Dutch ethical laws, rules and regulations.The GfK – ExternalRef removed – panel is used for this research. The Dutch ethical laws, rules and regulations are incorporated in their policy and panel management.
: Not applicable.
: The authors declare that they have no competing interests.It was possible to use the GfK panel – GfK is not involved in the design of the study, interpretation of data and in writing the manuscript.