Reviewer ’s report  
 
Title:  Sexual compulsivity and its relationship with condomless sex amon g unmarried female 
migrant workers in Shanghai, China: a cross -sectional study  
 
Version: 0 Date: 28 May 2018 
 
Reviewer:  Zhongrong  Yang  
 
Reviewer’s report:  
 
While I think the topic would be of interest to an international audience, there are several minor 
issues that require attention. These compulsory changes must be made:  
 
1. The abstract needs to be reworked, particularly the methods and conclusions sections. 
Methods - Ensure information about the methods used in the study is included. 
Conclusions - Rework to ensure the key message is clearly presented.  
 
2. A cross -sectional  study was conducted among unmarried female internal migrant workers 
in three factories in two industrialized areas in Shanghai, how to ensure the sampling of 
the study is representative ？ 
 
3. The subjects of this study were unmarried female internal migrant  workers. Whether did 
this study investigate number of participant's sexual partners and whether participants had 
ever engaged in commercial sexual activities, which may be important influential factors 
to this population.  
 
4. References are not consistent to the formatting style.  
 
5. The manuscript requires professional editing as there are significant issues with 
punctuation, grammar, structure and expression.  
 
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.  
 
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 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  
 
Qualit y 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:  
 
1. Have you in the past five years received reimbursements, fees, funding, or salary from an 
organisation that may in any way gain or lose financially from the publication of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any w ay gain or lose 
financially from the publication of this manuscript, either now or in the future?  
 
3. Do you hold or are you currently applying for any patents relating to the content of the 
manuscript?  
 
4. Have you received reimbursements, fees, funding, or salary from an organization that 
holds or has applied for patents relating to the content of the manuscript?  
 
5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
If you can ans wer no to all of the above, write 'I declare that I have no competing interests' 
below. If your reply is yes to any, please give details below.  
 
I declare that I have no competing interests.  
 
I agree to the open peer review policy of the journal. I underst and that my name will be included 
on my report to the authors and, if the manuscript is accepted for publication, my named report 
including any attachments I upload will be posted on the website along with the authors' 
responses. I agree for my report to b e made available under an Open Access Creative Commons 
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which I do not wish to be included in my named repo rt can be included as confidential comments 
to the editors, which will not be published.  
 
I agree to the open peer review policy of the journal