Author contributions
Conceptualization, project administration, and funding acquisition: XZ. Methodology: XZ and JZ. Investigation: SL, LH, QF, and XZ. Data analysis and writing—original draft preparation: XZ, YZ, JZ, and SL. Writing—review and editing: XZ and YZ. All authors contributed to the article and approved the submitted version.We express particular appreciation to the Chinese primiparous women who will attend the research.