Review for 10.1186/s12876-020-01551-1 (2020)

Reviewer’s report
Title: 
Sex difference in the incidence of cardia and non-cardia gastric cancer in the United States, 1992-
2014
Version: 
0 
Date: 
24 Jul 2020
Reviewer's report:
I can well understand the study. 
To consider:
ABSTRACT: to include aim of the study under the background of the study. Age-, ethnicity-, anatomical-,
and histological subtypes-specific to include under methods. 
Figure- not clear
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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?
Yes