Title: A self-assessment tool for predicting discomfort and tolerance in Chinese patients
undergoing esophagogastroduodenoscopy
Version: 2 Date: 28 Nov 2021
Reviewer's report:
This study is interesting to develop tools for predicting discomfort and tolerance for unsedated
EGD in daily practice. The followings are my comments.
#1.  Please provide baseline patient data, including the indication of endoscopy and endoscopy
findings for analysis. Such information might influence subsequent analyzed results, i.e.
patients findings of gastric cancer may require more procedure time and may experience more
discomfort/intolerance.  Inpatient patients may have different underlying diseases and different
indications for EGD procedure which may influence the study outcome.
#2. Do the authors analyze the Operator factor for the patient tolerance/discomfort in the present
study?
Title: A self-assessment tool for predicting discomfort and tolerance in Chinese patients
undergoing esophagogastroduodenoscopy
Version: 2 Date: 28 Nov 2021
Reviewer's report:
This study is interesting to develop tools for predicting discomfort and tolerance for unsedated
EGD in daily practice. The followings are my comments.
#1.  Please provide baseline patient data, including the indication of endoscopy and endoscopy
findings for analysis. Such information might influence subsequent analyzed results, i.e.
patients findings of gastric cancer may require more procedure time and may experience more
discomfort/intolerance.  Inpatient patients may have different underlying diseases and different
indications for EGD procedure which may influence the study outcome.
#2. Do the authors analyze the Operator factor for the patient tolerance/discomfort in the present
study?
Please review this paper.
user
Title: A self-assessment tool for predicting discomfort and tolerance in Chinese patients
undergoing esophagogastroduodenoscopy
Version: 2 Date: 28 Nov 2021
Reviewer's report:
This study is interesting to develop tools for predicting discomfort and tolerance for unsedated
EGD in daily practice. The followings are my comments.
#1.  Please provide baseline patient data, including the indication of endoscopy and endoscopy
findings for analysis. Such information might influence subsequent analyzed results, i.e.
patients findings of gastric cancer may require more procedure time and may experience more
discomfort/intolerance.  Inpatient patients may have different underlying diseases and different
indications for EGD procedure which may influence the study outcome.
#2. Do the authors analyze the Operator factor for the patient tolerance/discomfort in the present
study?
assistant