600
Participants
Start Date
March 23, 2020
Primary Completion Date
May 30, 2020
Study Completion Date
June 30, 2020
Questionnaire
Before colonoscopy, the following information was obtained by the colonoscopists through asking patients: the characteristics of last stool, the time of drinking first dose of laxative, the time of first defecation, the time of drinking last dose of laxative. The beginning time of colonoscopy was also recorded. During withdrawal phase, the quality of bowel preparation was evaluated based on BBPS scale.
Department of Gastroenterology, Hongai Hospital, Xiamen
Department of Gastroenterology, Shaanxi Second People's Hospital, Xi'an
Endoscopic center, Xijing Hospital of Digestive Diseases, Xi'an
Department of Gastroenterology, The First Affiliated Hospital of the Medical College, Shihezi University, Shihezi
Xiang'an hospital of Xiamen University, Xiamen
Department of Gastroenterology, Qionghai people's hospital, Qionghai
Department of Gastroenterology, Bethune international peace hospital, Shijiazhuang
Department of Gastroenterology，Zhengzhou Central Hospital, Zhengzhou
The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an
The First Affiliated Hospital of Xi'an Medical University, Xi'an
Department of Gastroenterology，Shanxi Bethune hospital, Taiyuan
Department of Gastroenterology，Chengdu third people's hospital, Chengdu
Air Force Military Medical University, China
OTHER