Reviewer ’s report  
 
Title:  The Effect of Sleep Pattern Changes on Postpartum Depressive Symptoms  
 
Version: 1 Date: 06 Jun 2017 
 
Reviewer:  Jennifer  Doering  
 
Reviewer’s report:  
 
The authors were highly responsive to the reviewer comments, which strengthened the paper. A 
few comments are below, all of which are minor.  
 
- P. 2, line 9 - add the word 'are' and 'risk' to read 'women who are at high risk f or 
postpartum depression'  
 
- p. 4 line 44 - change the paren ( to a bracket [  
 
- 5 lines 48 -53 reads as if it is a proposal (i.e., Second we will examine). Change the 
sentence to read past tense (i.e., Second, we examined which types of sleep problems 
were....  Finally, we examined women...")  
 
- P6 line 34: Did the authors control and/or measure infant bedsharing in the sample? 
Bedsharing is a variable that could confound maternal sleep.  
 
- p 10 line 48 - change the comma to a period after "PSQI"  
 
- P14 line 53 - The authors mention 'environmental and other health -related factors' but 
then go on to only list environmental or nutrition -related factors. Could the authors add 
"physical symptoms" to this list? Nocturia, for example, can be problematic in 
postpartum women w ho are healing from childbirth.  
 
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 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  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
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5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
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below. If your reply is yes to any, please give details below.  
 
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