Physical and psychological correlates of somatic symptom in patients with functional constipation: a cross-sectional study.

"Declarations Ethics approval and consent to participateThe study was conducted in accordance with the ethical guidelines of the Helsinki Declaration. Ethical approval for the study was obtained from Chinese Ethics Committee of Registering Clinical Trials (ChiECRCT20200151). Informed consent was initially obtained from all participants during the recruitment phase of the larger, ongoing prospective study (ChiCTR2000034379, 04/07/2020, https://www.chictr.org.cn/showproj.html?proj=54604). All patient data used in the study were kept strictly confidential. Consent for publicationNot Applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This work was supported by the National Natural Science Fund of China [grant number 82100680], Clinical Application Research Project of National Clinical Research Center for Digestive Diseases [grant number NCRCDD2020-05]. The funding body had no role in the design of the study and collection, analysis, interpretation of data or preparation of the manuscript."