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Article History

Received: 4 July 2024

Accepted: 2 January 2025

First Online: 27 January 2025

Declarations

:

: The HELIX study complies with the Declaration of Helsinki. All six cohorts existed for several years before HELIX started, and had undergone the required evaluation by national ethics committees: EDEN received approval from the ethics committee (CCPPRB) of Kremlin Bicêtre and from CNIL (Commission Nationale Informatique et Liberté), the French data privacy institution; BiB received ethics approval from the Bradford Research Ethics Committee; INMA obtained the approval of the ethics committee of each involved hospital or health center; the research protocol of KANC was approved by the Lithuanian Bioethics Committee; MoBa received approval from a Norwegian regional committee for medical and health research ethics; and the ethics committee of the university hospital at Heraklion approved the study protocols of RHEA. An informed consent has been signed by all participants at recruitment and at the follow-up visit for clinical examinations and biospecimen collection. Each cohort also confirmed that relevant informed consent and approval were in place for the secondary use of data from pre-existing data. The work in HELIX was covered by new ethics approvals in each country. The HELIX project received ethical approvals from the Comité Ético de investigación Clínica Parc de Salut MAR. At follow-up enrolment in the HELIX subcohort and panel studies, participants were asked to sign an informed consent for clinical examination and biospecimen collection and analysis.

: Not applicable.

: The authors declare no competing interests.