Review for 10.1186/s12876-019-1081-2 (2019)

Reviewer’s report
Title: Risk factors for peritonitis in patients on continuous ambulatory peritoneal dialysis who undergo
colonoscopy: A retrospective multicentre study
Version: 0 Date: 14 Aug 2019
Reviewer: Hsu-Heng Yen
Reviewer's report:
Dear Editor,
 This is an interesting article regarding the association of CAPD and colonoscopy. The followings are
my comments
#1. Regarding the colonoscopic procedure:
      How many patients received cold or hot biopsy ? 
      Do the size of polyps removed related to the infection rate ?
      What bowel preparations used among these patients ?
#2. Colonoscopic factors and the use of prophylactic antibiotics ( Line 4) 
       The authors mentions : Neither the colonoscopy skills required nor bowel preparation quality
differed between the two groups.  
       There is no "colonoscopy skill " in Table 2 , only Expert or Trainee in Table 2. How about the
experience of "Expert" or "Trainee" ?
       Does "Trainee" perform colonoscopy under supervision of "Expert" in Korea ?
#3. Do patients instill dialysate or remove dialysate for colonoscopy ? 
#4.  Study population and methods
        Authors  mentioned  "We  recorded  demographic  characteristics  and  colonoscopyrelated
factors, including the indication for colonoscopy, bowel preparation quality, biopsy status, and the need
for advanced procedures   including polypectomy or endoscopic mucosal resection (EMR) during
colonoscopy. "
 
Please provide "indication" for colonoscopy as mentioned  
      
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
Yes
Does 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.
Yes
Are 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 further
assessment in your comments to the editors.
I am able to assess the statistics
Quality of written English
Please indicate the quality of language in the manuscript:
Acceptable
Declaration of competing interests
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