Funding for this research was provided by:
This study was supported by the department of Children and Adolescent Health and Maternal Health Care, Public Health College, Harbin Medical University, Harbin, China.
Received: 13 January 2020
Accepted: 8 July 2020
First Online: 14 July 2020
Ethics approval and consent to participate
: This study was approved by the Research and Ethics Committee of public health college, Harbin Medical University, Harbin, China. Also, the approval letter was given by the Ministry of Health and Population of Yemen (2018/100667–8) to conduct this study. Written informed consent was obtained from the health leaders and midwives. However, the mothers gave their consent orally. The confidentiality and anonymity of the participants were ensured.According Yemen Demographic Health and Survey the majority of “rural” women in Yemen are not able to read and write Arabic, which is the official language in Yemen, so we decided before starting our study to ask only those who could read and write to give us their writing consent and we invited them in writing to participate in the study. However, even those who could read and write refused to give us their writing consent and they agreed to give us only their verbal consent. Thus verbal consent was approved by the ethics committee before conducted this study.
: Not applicable.
: We the authors declare that we have no competing interests in the publication of this article.