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Authors
Kankaanpää, Anna https://orcid.org/0000-0002-6973-5385
Tolvanen, Asko https://orcid.org/0000-0001-6430-8897
Joensuu, Laura https://orcid.org/0000-0002-9544-6552
Waller, Katja https://orcid.org/0000-0002-0121-249X
Heikkinen, Aino https://orcid.org/0000-0001-5770-6475
Kaprio, Jaakko https://orcid.org/0000-0002-3716-2455
Ollikainen, Miina https://orcid.org/0000-0003-3661-7400
Sillanpää, Elina https://orcid.org/0000-0001-6375-959X
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Funding
Funding for this research was provided by:
University of Jyväskylä
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Article History
Received: 24 January 2024
Accepted: 26 December 2024
First Online: 17 January 2025
Declarations
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: Data collection was conducted in accordance with the Declaration of Helsinki. The ethics committees of the University of Helsinki and Helsinki University Central Hospital approved the study protocol (113/E3/2001 and 346/E0/05).
: Blood samples for DNA analyses were collected during in-person clinical studies after written informed consent was signed.
: A subsample of the FTC with DNA methylation age estimates, phenotypes and information on the classes of long-term LTPA will be located in the Biobank of the National Institute for Health and Welfare. All these data will be publicly available for use by qualified researchers following a standardised application procedure (for details on the application process, see the following website: ). Because of the consent given by the study participants and the high degree of identifiability of the twin siblings in Finland, the full cohort data cannot be made publicly available. However, the full cohort data are available through the Institute for Molecular Medicine Finland (FIMM) Data Access Committee (DAC) for authorised researchers with an IRB/ethics approval and an institutionally approved study plan. For more details, please contact the FIMM DAC (fimm-dac@ helsinki.fi).
: The authors declare no conflicts of interest.
