Review for 10.1186/s12876-021-01715-7 (2021)

Reviewer’s report
Title: 
Very-Low-Dose Aspirin and Surveillance Colonoscopy is Cost-effective
in Secondary Prevention of Colorectal Cancer in Individuals with Advanced
Adenomas: Network Meta-analysis and Cost-effectiveness Analysis
Version: 
0 
Date: 
22 Jan 2021
Reviewer's report:
Vateel et al. present important data on gain of life years and quality of life in
screening models for CRC. They combine this evaluation with an analysis for
cost effectiveness. This work presents a important data for communities with
restricted resources for optimising preventive / screnning measures. As a
gastroenterologists and clinician I am unfortunately not a statistician and as this
work deals mainly with statistical and epidemiologic models, this manuscript has
also to be reviewed by a such.
Minor Remarks
What means ".. in 2018 United States Dollar ($) per quality-adjusted life year.."?
Does it mean anything with the worth of the UDS in the year 2018? Please,
explain.
Language: Overall good language, but some mistakes can be found like single
words missing. Please, go through the manuscript and correct.
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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