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Article History

Received: 16 December 2024

Accepted: 21 March 2025

First Online: 4 April 2025

Declarations

:

: The study used secondary data retrieved from registers, and no human subjects were contacted to collect the data. According to the General Data Protection Regulation of the EU [] and the Finnish Data Protection Act [], processing of personal data is permitted without informed consent for a task carried out in the public interest, such as scientific research. In Finland, an ethical review statement is not required for studies based solely on administrative register data []. We followed good scientific practice, data protection guidelines and ethical standards [] and in compliance with the Helsinki Declaration [] in collecting and analysing the data and in reporting the results. The data were fully pseudonymised by the data providers, and the researchers had no access to the personal identifiers of the study subjects.

: Not applicable.

: The authors declare no competing interests.