Subtypes of nursing students' volunteer motivation in COVID-19: a latent profile analysis.

"Declarations Ethics approval and consent to participateA full compliance with ethical guidelines and regulations was observed in all methods used in this study. The survey was approved by the Biomedical Ethics Committee of the Department of Medicine, Xi'an Jiaotong University (No. 2022–0006), and the subjects gave their informed consent before their data was collected. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was funded by the National Natural Science Foundation of China (72104221), Henan Medical Education Research Program (Wjlx2021016), the National Social Science Foundation of China Special Project for Research on Civic and Political Science Courses in Universities (21VSZ084), Henan graduate education reform and quality improvement project (Grant number 10459), Zhengzhou University curriculum ideological and political education teaching reform model course (2023ZZUKCSZ048), and Medical Education Research Project (Grant number WJLX2021004)."

"Trial registration The survey was approved by the Biomedical Ethics Committee of the Department of Medicine, Xi’an Jiaotong University (No. 2022–0006)."