Review for 10.1186/s12876-022-02610-5 (2022)

Reviewer’s report
Title: 
Long-term outcomes of endoscopic transpapillary gallbladder drainage
using a novel spiral plastic stent in acute calculus cholecystitis
Version: 
2 
Date: 
01 Oct 2022
Reviewer's report:
PEER REVIEWER ASSESSMENTS: 
OBJECTIVE - Full research articles: is there a clear objective that addresses one
or several testable research questions? (Brief or other article types: is there a
clear objective?)
No - there are minor issues
DESIGN - Is the current approach (including controls and analysis protocols)
appropriate for the objective?
No - there are major issues
EXECUTION - Are the experiments and analyses performed with sufficient
technical rigor to allow confidence in the results?
No - there are major issues
STATISTICS - Is the use of statistics in the manuscript appropriate?
Yes - appropriate statistical analyses have been used in the study
INTERPRETATION - Is the current interpretation/discussion of the results
reasonable and not overstated?
No - there are minor issues
OVERALL MANUSCRIPT POTENTIAL - Has the author addressed your
concerns sufficiently for you to now recommend the work as a technically sound
contribution? If not, can further revisions be made to make the work technically
sound?
No - manuscript has some fundamental flaw(s)
PEER REVIEWER COMMENTS: 
GENERAL COMMENTS: Dear authors
unfortunately you failed to provide more data as requested in order to reduce te
selection bias; moreover with the criteria for stent positioning indication is
mandatory to declare characteristics of patients and numerosity of each
subgroup.
REQUESTED REVISIONS: 
please see my comments
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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?
No
Are the methods sufficiently described to allow the study to be repeated?
No
Is the use of statistics and treatment of uncertainties appropriate?
Yes
Is the presentation of the work clear?
No
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
Yes