Review for 10.1186/s12876-020-01210-5 (2020)

Reviewer’ s report
Title: Prophylactic clip application for large pedunculated polyps before snare polypectomy may
decrease immediate postpolypectomy bleeding
Version: 0Date: 19 Sep 2019
Reviewer: Han Hong Lee
Reviewer's report:
Although this study did not obtain the number of enrolled patients to be designed, authors
conducted the study appropriately and drew the optimal conclusion: "Prophylactic clip applicationcould prevent a bleeding event after colonic polypectomy." Unlike enrollment size criteria andmean size of enrolled cases, authors used the bigger size (2 cm) in the prediction analysis for post-polypectomy bleeding. Please provide the reason why authors used different size criteria (polypsize: 2 cm and stalk diameter: 4 mm) in this analysis.
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
YesDoes the work include the necessary controls?
If not, please specify which controls are required in your comments to the authors.
Yes
Are the conclusions drawn adequately supported by the data shown?
If not, please explain in your comments to the authors.
YesAre you able to assess any statistics in the manuscript or would you recommend an
additional statistical review?If an additional statistical review is recommended, please specify what aspects require furtherassessment in your comments to the editors.
Not relevant to this manuscriptQuality of written English
Please indicate the quality of language in the manuscript:
Needs some language corrections before being published
Declaration of competing interests
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4. Have you received reimbursements, fees, funding, or salary from an organization that holds
or has applied for patents relating to the content of the manuscript?
5. Do you have any other financial competing interests?6. Do you have any non-financial competing interests in relation to this paper?
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