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Article History

Accepted: 22 July 2025

First Online: 26 September 2025

Declarations

:

: The authors declare that they have no known competing financial interests or personal relationships that could have influenced the work reported in this paper.

: All participants in this study gave informed consent in accordance with Swedish law.

: The study is designed in accordance with the Swedish Ethical Review Act (2003:460), which stipulates that an ethics review must be performed by a national agency (the Ethics Review Authority) if the research fulfills at least one of the following criteria: (i) there is a physical intervention on the research subject (alive or deceased), (ii) the research method is intended to physically or psychologically affect the research person, (iii) there is an obvious risk of physical or psychological harm, (iv) biological matter from the research persons (alive or deceased) is used and traceable to them, or (v) sensitive personal data or personal data concerning the crime record are handled. In our case, it is obvious that the first four criteria do not apply. With respect to the fifth, KTH Royal Institute of Technology has assessed that the study is designed so that sensitive personal data or personal data about violations of the law are not included in the study, and that the study does not intend to process such data.