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Article History

Received: 23 November 2025

Accepted: 18 February 2026

First Online: 5 March 2026

Declarations

:

: The study was approved by the Swedish Ethical Review Authority (DNR: 2021–04345, date: 29 December 2021 with update DNR: 2025–05972, date: 15 September 2025). All procedures follow the Declaration of Helsinki. Parental written consent and children’s verbal agreement were mandatory before participation.

: Consent to use data for research was provided by all families participating in the study.

: The authors declare no competing interests.