Article History
Received: 1 October 2021
Accepted: 27 January 2022
First Online: 12 February 2022
Declarations
:
: NCHS Research Ethics Review Board approved NHIS data collection. The protocol was approved by the NCHS ERB on June 12, 2015 (Protocol #2015–08). All participants provided informed consent to participate. An additional ethical approval for performing this research was not necessary.
: Not applicable.
: All authors declare that there are no conflicts of interests.