Funding for this research was provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (P2C HD041023, T32HD095134)
Received: 10 June 2021
Accepted: 30 September 2021
First Online: 1 November 2021
: Not applicable. As a secondary study of de-identified county-level data, this research does not involve individual human subjects.
: Not applicable.
: The authors declare that they have no competing interests.