Review for 10.1186/s12876-019-1108-8 (2019)

Reviewer ’s report  
 
Title: Assessment of Prevalence and Risk Factors of Helicobacter Pylori Infection in an Oilfield  
Community in Hebei, China  
 
Version: 2 Date: 14 Oct 2019  
 
Reviewer: Rosa Filiberti  
Reviewer's r eport:  
Again, the authors must review references. In particular :  
Ref 15: Malcolm et als say that prevalence of Hp did not differ between genders  
 
Ref 20: I am not sure that Murray et al speak about air, drinking water, food, flies, or other 
animals  
 
Ref 18, page 16: correlation with kipper/fried food has been found from Zhu et al (ref 10)  
 
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 autho rs. 
 
Unable to assess  
 
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 revie w? 
If an additional statistical review is recommended, please speci fy what aspects require further 
assessment in your comments to the editors.  
 
Not relevant to this manuscript  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
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