Epidemiological study: Correlation between diet habits and constipation among elderly in Beijing region
Xiao-Jiao Yang, Amanda Gabriel, McGill University, 845 Sherbrooke Street West, Montreal, Quebec H3A 0G4, Canada
Mei Zhang, Hong-Ming Zhu, Zhe Tang, Dan-Dan Zhao, Bang-Yi Li, Department of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
Author contributions: Zhang M designed the research; Yang XJ performed data and statistical analysis, designed survey questions regarding diet habit and wrote the paper; Zhu HM and Tang Z performed the research; Zhao DD, Li BY and Gabriel A performed data collection and input.
Institutional review board statement: The study was reviewed and approved by the Department of Gastroenterology of Xuanwu Hospital, Capital Medical University.
Informed consent statement: All questionnaires were anonymous and verbal consent was obtained from all participants.
Conflict-of-interest statement: There are no conflicts of interest to report.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Dr. Mei Zhang, Department of Gastroenterology, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xuanwu District, Beijing 100053, China. email@example.com
Telephone: +86-10-83198438 Fax: +86-10-83198438
Received: July 27, 2016
Peer-review started: July 28, 2016
First decision: August 15, 2016
Revised: August 19, 2016
Accepted: September 12, 2016
Article in press: September 12, 2016
Published online: October 21, 2016