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Article History

Received: 8 May 2023

Accepted: 8 September 2023

First Online: 20 September 2023

Declarations

:

: The Medical Research Ethics Committee (MREC) NedMec confirmed that the Medical Research Involving Human Subjects Act (WMO) does not apply to the SCONE (Studying Contacts of Elderly) study (research protocol number 23–051/DB). Therefore, official approval of this study by the MREC NedMec is not required under the WMO.The contact survey was performed in accordance with relevant guidelines and regulations. Participants were informed that by returning the original questionnaire to RIVM, they were consenting to participate in the study. The initial processing of personal data by RIVM is lawful since it is necessary for the performance of a task carried out in the public interest (Article 6, paragraph 1, under e, of the GDPR).

: The participants were informed that the data and results would be made publicly available in an anonymous way, so that individual participants could not be (re)identified. In the context of making the data and results publicly available for scientific or statistical purposes, the principle of data minimization is being respected. Whenever possible, the data is minimised by aggregating open, easily identifiable, and unnecessary records (Article 5, Paragraph 1, under b, and Article 89, Paragraph 1, of the GDPR).

: The authors declare no competing interests.