Zhang, Zhen
Lao, Jiahui
Liu, Mingming
Zheng, Shenglong
Zhao, Ming
Zhang, Min
Article History
Received: 18 November 2023
Accepted: 27 April 2024
First Online: 7 May 2024
Declarations
:
: The National Health Interview Survey (NHIS) is publicly available. The data we used were collected by the National Center for Health Statistics (NCHS). The NHIS protocols were authorized by the NCHS ethics review board. So, the ethical approval was not required.
: All survey participants provided informed consent to participate in NHIS.
: The authors declare no competing interests.