Funding for this research was provided by:
Wellcome Trust (095582/Z/11/Z)
Received: 29 July 2018
Accepted: 14 May 2019
First Online: 24 May 2019
Ethics approval and consent to participate
: The 2015 Pelotas Birth Cohort study was approved by the Research Ethics Committee of the School of Physical Education of Federal University of Pelotas (registration number: 26746414.5.0000.5313). The parents or legal guardians of all infants included in the cohort provided written informed consent for participation.
: Not applicable.
: The authors declare that they have no competing interests.
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