Article History
Accepted: 3 June 2021
First Online: 12 June 2021
Declarations
:
: The Add Health project was approved by the Institutional Review Board at the University of North Carolina, School of Public Health. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was given by the Add Health participants (or next of kin/caregiver) for their answers to be used in secondary data analysis.
: The authors declare no competing interests.