Review for 10.1186/s12876-021-01815-4 (2021)

Reviewer’s report
Title: 
Effect of timing of surgical resection of primary hepatocellular
carcinoma on survival outcomes in elderly patients and prediction of clinical
models
Version: 
0 
Date: 
24 Jan 2021
Reviewer's report:
This manuscript has studied the effect of surgical timing on the prognosis of
elderly HCC patients undergoing surgical resection. This manuscript is
interesting and well written. However, it will require some revision before
publication.
1, Is the definition of elderly patients (>=60 years) appropriate?
2, Is the classification of delayer period (18,30,60 days) appropriate? How was
90 days?
3, Does this manuscript require Fig.4?
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interests' below. If your reply is yes to any, please give details below.
This manuscript has studied the effect of surgical timing on the prognosis of
elderly HCC patients undergoing surgical resection. This manuscript is
interesting and well written. However, it will require some revision before
publication.1. Is the definition of elderly patients (>=60 years) appropriate?2, Is
the classification of delayer period (18,30,60 days) appropriate? How was 90
days?3, Does this manuscript require Fig.4?
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
Yes
Are the methods sufficiently described to allow the study to be repeated?
Yes
Is the use of statistics and treatment of uncertainties appropriate?
Yes
Is the presentation of the work clear?
Yes
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
No