200
Participants
Start Date
September 1, 2021
Primary Completion Date
November 30, 2022
Study Completion Date
November 30, 2022
100 ml lactulose combined with 1 L PEG
the participants were instructed to consume 100 ml lactulose combined with 1000 mL of PEG solution
100 ml lactulose combined with 2 L PEG
the participants were instructed to consume 100 ml lactulose combined with 2000 mL of PEG solution
200 ml lactulose
the participants were instructed to consume 200 ml lactulose alone
3 L Polyethylene glycol solution
the participants were instructed to consume 3000 mL of PEG solution
west china fourth hospital of Sichuan university, Chengdu
Affiliated Hospital of Southwest Medical University
OTHER
Affiliated Hospital of North Sichuan Medical College
OTHER
Sichuan University
OTHER