Reviewer ’s report  
 
Title: Differentials in Health -related Quality of Life of Employed and Unemployed Women with 
Normal Vaginal Delivery  
 
Version: 0 Date: 07 May 2017  
 
Reviewer: Ahmad Khosravi  
 
Reviewer's report:  
 
Dear EIC  
 
Thank you, the mentioned manuscript is a comparative study on Differentials in Health -related 
Quality of Life of Employed and Unemployed Women  
I have made several comments below, and I hope this will help the authors strengthen the paper.  
 
Abstract:  
It is a longitudinal study, you can delete the other labels such as prospective or descriptive 
designs.  
Please use "physical role limitation" instead of "role physical" and "emotional role limitation" 
instead of "role emotional".   
 
Introduction:  
The main goal and application of study must describe at the last paragraph of introduction.   
 
Methods:  
Did you used a valid Nigerian's version of  SF -36v2TM1? What is the language of this 
inventory? Please describe about linguistic evaluation and content and construct validity of  SF -
36v2TM1.  
 
 
Results:  
The repeated analysis of variances for each dimension of QoL must be done and interaction 
between two groups and time must be shown.  
I suggest to reanalysis the data using a multiple Generalized Estimation Equation (GEE ).  
The data showed in Table  2-5 are not clear.      
Are the methods appropriate and well described?  
If not, please specify what is required in your comments to the authors.  
 
No 
 
Does the work include t he 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 yo u 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  
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 way 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 com peting 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.  
 
I declare that I have no competing interests  
 
I agree t o the open peer review policy of the journal. I understand 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'  
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CC-BY license ( http://creativecommons.org/licenses/by/4.0/ ). I understand that any comments  
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to the editors, which will not be published.  
 
I agree to the open peer review policy of the journal