Review for 10.1186/s12876-018-0822-y (2018)

Reviewer ’s report  
Title: The prevalence and phenotype in Brazilian patients with inflammatory bowel disease.  
 
Version: 1 Date: 22 Feb 2018  
 
Reviewer: Kevan Jacobson  
 
Reviewer's report:  
The authors have adequately addressed the questions that I asked.  
I have one minor comment: A question that remains to be determined is whether the prevalence 
of IBD in the state of Espirito Santo was higher than in the 2 other studies in Brazil due bette r 
data collection (as data was available for the whole state). The authors may want to indicate that 
this is one possible reason why the prevalence was higher as there may also be other reasons, 
rather than stating that this is the reason  
 
Some of the adde d text does require further editing.  
For example on page 7, line 1567 - leave out the and before 438  
Page 7, line 158 - leave out who had ie. those treated with AZA  
Page 7, line 160 Correct the spelling for patients.  
Page 7, line 161 change on to in befor e 253 and 153  
 
Page 7, discussion  
line 167 remove has and change the to a  
line 169 remove has and change the to a  
 
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 manus cript or would you recommend an 
additional statistical review?  
If an additional s tatistical review is recommended, please speci fy 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:  
Needs some language corrections before being published  
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
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3. Do you hold or are you currently applying for any patents  relating to the content of the 
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4. Have you received reimbursements, fees, funding, or salary from an organization that 
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below. If your reply is yes to any, please give details below.  
 
I have no competing interests  
 
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