Funding for this research was provided by:
UNFPA (CHN51B603)
Article History
Received: 25 August 2019
Accepted: 3 February 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: This study was conducted according to the guidelines laid down in the Declaration of Helsinki. The nature of the study was explained to the investigated young people prior to their participation. The young people’s participating of the study in the investigation is regarded as informed consent which has been noted at the beginning of the questionnaire. There was a written expression on the title page of the questionnaire as: Participation in the questionnaire is voluntary, can be suspended at any time. Young people who didn’t agree with the questionnaire would quit on their own. Parental consent has been obtained. There is no biological sample collected from the young people who participated the questionnaire survey, neither individual information nor its correlation with the answers was publicized, data analysis focused on population but not the individual perspective. This social investigation was carried out in schools, communities and enterprises, but not in hospitals. In China, there is no related provision to require that sociological survey study should go through ethics review. So, the ethics committee’s approval on the study was not mandatory when the study was conducted in 2010.
: Not applicable.
: The authors declare that they have no competing interests.