Review for 10.1186/s12876-021-01701-z (2021)

Reviewer’s report
Title: 
Does self-reported symptom questionnaire play a role in nonadherence to colonoscopy for risk-
increased population in the Tianjin colorectal cancer screening program?
Version: 
0 
Date: 
08 Dec 2020
Reviewer's report:
This paper on the relationship between positive self-reported symptom questionnaire and colorectal cancer
screening is well-designed, well constructed and nicely presented . 
Its conclusion that the population at
risk with a positive SRSQ based on event related 
situations should be targeted with intervention is
appropriate. 
The paper would benefit from some editing to resolve any grammatical imperfections. 
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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