Review for 10.1186/s12876-020-01397-7 (2020)

Reviewer ’s report  
 
Title: Preoperative anthropomorphic and nutritious status and fi stula risk score for predicting 
clinically relevant postoperative pancreat ic fistula after pancreaticoduodenectomy  
 
Version: 3 Date: 28 Jun 2020  
 
Reviewer's report:  
 
1. It is not appropriate to describe the predictive accuracy to be "equal" among those factors with  
different odds ratio. Also, if the authors describe the predictability of risk factors to be 
"accurate", validation analysis is needed.  
 
2. Since body composition, including the ratio of adipose tissue and skeletal muscle, 
malnutrition, and FRS have been r ecognized as risks for POPF or other postoperative 
complications in many studies, this reviewer wonders if the risk analysis in this study uses a 
"novel approach". The authors should explain how their analysis is literally "novel" or delete this 
term.  
 
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No 
 
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 t he data shown?  
If not, please explain in your comments to the authors.  
 
No 
 
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 specify wh at 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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1.  Have you in the past five years received reimbursements, f ees, funding, or salary 
from an organisation that may in any way gain or lose financially from the 
publication o f this manuscript, either now or in the future?  
 
2.  Do you hold any stocks or shares in an organisation t hat 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 ap plying 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 f inancial 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 det ails below.  
 
I declare that I have no competing interests.  
 
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