Ma, Yanning
Gong, Weiyan
Ding, Caicui
Song, Chao
Yuan, Fan
Fan, Jing
Feng, Ganyu
Chen, Zheng
Liu, Ailing http://orcid.org/0000-0001-6886-2158
Funding for this research was provided by:
National Health and Family Planning Commission of the People's Republic of China (20120212)
Article History
Received: 19 July 2020
Accepted: 19 May 2021
First Online: 28 May 2021
Declarations
:
: The informed consent of the 2010–2012 CNNHS was approved by the Ethical Committee of National Institute for Nutrition and Health (NINH), Chinese Center for Disease Control and Prevention (2013–018). Our study was approved by the Ethical Committee of NINH. We have received administrative permission to access the data from National Institute for Nutrition and Health (NINH), Chinese Center for Disease Control and Prevention.
: Not applicable.
: The authors declare that they have no competing interests.