Review for 10.1186/s12876-018-0901-0 (2018)

Reviewer ’s report  
 
Title: Relevance of vitamin D deficiency in patients with chronic autoimmune atrophic gastritis: 
a prospec tive study.  
 
Version: 0 Date: 11 Aug 2018  
 
Reviewer: Quadri Alabi  
 
Reviewer's report:  
 
The study of prevalence of 25(OH)D deficiency in chronic atrophic autoimmune gastric patients  
Abstract: Page 2 line 15 -23. 
Methods: the sentence should be recast for clarity. Authors should start from participants details, 
years and then paramet ers measured.  
Background of study  
Page 3 line 36 -39 
Authors should provide reference for this sentience "Vitamin B12 deficiency is a well -known 
consequence of the intrinsic factor deficiency  
61 in CAAG"  
 
Methods  
Why small patients of Chronic atrophic auto immune gastritis (CAAG) 87 compared with large 
size of control group "1,232"? Is there male patients among CAAG group? Authors should 
review the methods section for clarity.  
Proton pump inhibitor in full (PPL).  
Overall, the study is a pointed on the prevalence deficient of vitamin D in CAAG patients. 
Despite all the biochemical indices done by the authors, they fail to assay for iron concentration 
in both CAAG patients and control group, which also significant fo r there findings. They just 
manage to speculate around the previous studies.  
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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