Reviewer ’s report  
 
Title: Factors Associated with Occupation Changes after Pregnancy/Delive ry:  Result from 
Japan Environment & Children's Pilot Study  
 
Version: 1 Date: 07 Nov 2017  
 
Reviewer: Lisa Russell  
 
Reviewer's report:  
 
I am pleased that the authors have indeed taken on board most of the comments/edits suggested 
in the previous review. The nature of the work is much clearer and more recent data has now 
been referr ed to as requested. This has in turn strengthened the abstract, methods and conclusions 
sections. The key words now include 'occupation' and 'employment'.  
One minor detail - I feel the methods could still be sharper, you could for example better define 
the type of questionnaire rather than just describing it as 'standard'.  
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 b y 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 specif y 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  
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 publi cation of this  
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any way gain or lose  
financially from the publication of this manuscript, either now or in the future?  
 
3. Do you hold or are you curr ently 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 answer 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.  
 
No competing interests  
 
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on my report to the authors and, if the manuscript is accepted for publication, my named report  
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to the  editors, which will not be published.  
 
I agree to the open peer review policy of the journal