Wu, Jinjing
Muennig, Peter A.
Keyes, Katherine
Wu, Jilei
Funding for this research was provided by:
National Planning Office of Philosophy and Social Science (17ZDA124)
China Postdoctoral Science Foundation (2019M650083)
Article History
Received: 28 January 2019
Revised: 28 May 2019
Accepted: 19 June 2019
First Online: 26 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was exempt from ethical approval because it was limited to the publicly available China Health and Nutrition Survey dataset that contained no personally identifiable information beyond birthdates.
: All participants provided informed consent before being enrolled in the China Health and Nutrition Survey.