Review for 10.1186/s12876-018-0800-4 (2018)

Reviewer ’s report  
Title: Variable Endoscopist Performance in Proximal and Distal Adenoma Detection during 
Colonoscopy: A Retrospective Cohort Study  
 
Version: 2 Date: 20 Mar 2018  
 
Reviewer: Marc J. Zuckerman  
 
Reviewer's report:  
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Comments by the rev iewers appear to be adequately addressed.  
 
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?  
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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 manus cript or would you recommend an 
additional statistical revi ew? 
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assessment in your comments to the editors.  
I am able to assess the statistics  
 
Quality of written English  
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Acceptable  
Declaration of competing interests  
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