Willingness and influencing factors of old-age care mode selection among middle-aged and older adults in Henan Province, China.

"Declarations Ethics approval and consent to participateAfter review by the Bioethics Committee of Sanquan College of Xinxiang Medical University, the research content and process of the project complied with the international and national ethical requirements for biomedical research and all methods were carried out in accordance with relevant guidelines and regulations, hence it was exempted from the formal review procedures. All participants were informed of the details of the study before participating and the informed consent was obtained from all participants. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by the National Natural Science Foundation of China (grant number: 72104073 and 71734003). The funders did not participate in study design, data collection, analysis, interpretation of data and manuscript writing."