Funding for this research was provided by:
Netherlands Organization for Health Research and Development (3116.0002)
Netherlands Organization for Scientific Research (452-04-320)
Royal Netherlands Academy of Arts and Sciences (KNAW) Sara van Dam Project (n/a)
Behavioural Science Institute Fellowship (n/a)
Received: 2 May 2019
Accepted: 5 December 2019
First Online: 4 February 2020
Ethics approval and consent to participate
: The Erasmus University Medical Center Ethics Committee approved the JOiN study (MEC 230.37/2003/123). The Faculty Ethics Committee of Radboud University approved the BIBO study (ECG 300107, ECG 22111/130112). Both ethics committees follow the Declaration of Helsinki. In the JOiN study, parents and children gave written informed consent and assent, respectively, at each wave of the study. In the BIBO study, mothers of the participants gave written informed consent before starting the study.
: Not applicable.
: The authors declare that they have no competing interests.