Reviewer ’s report  
 
Title: The myth of menstruation: How menstrual regulation and s uppression impact 
contraceptive choice  
 
Version: 0 Date:  06 May 2019  
 
Reviewer: Guenter Freundl  
 
Reviewer's report:  
 
Please include all comments for the autho rs in this box rather than uploading your report as an 
attachment. Please only upload as attachments annotated versions of manuscripts, graphs, 
supporting materials or other aspects of your report which cannot be included in a text format.  
 
I think you sho uld shorten yout paper a little. In contrast to the introduction of the paper that is a 
field where a lot of publications already appeared in European Journals or books. The work of 
f.e. Georgetown University, Washington, Victoria Jennings or in Europe Roe tzer/ Vienna, 
Doering/ Munich, Marshall/ UK, Billings/ Australia, Klann, Frank -Herrmann, AG NFP/ Koeln  
should be menitoned. The TBP is only one way to get informations on this problem.Therefore 
shorten the Introduction of the paper and also the descriptio n of the methods.  
 
Please make the literature research more worldwide and not only in the context of US.  
 
The material researched includes only 600 women altogether, which is a very small basis for 
such a basic question.  
 
In the discussion the worldwide knowledge in this field should be included.  
 
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.  
 
No 
 
Are the conclusions drawn adequately supported by the data shown?  
If not, please explain in your comments to the authors.  
 
Unable to assess  
 
Are you able to assess any statistics in the manus cript or would you recommend an 
additional statistical review?  
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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