Review for 10.1186/s12876-021-01677-w (2021)

Reviewer’s report
Title: 
Epidemiological Survey to Determine the Prevalence of
Cholecystolithiasis in Uyghur, Kazakh, and Han Ethnic Groups in the Xinjiang
Uyghur Autonomous Region of China- 
cross-sectional studies
Version: 
1 
Date: 
19 Aug 2020
Reviewer's report:
Thank you for the revision. Unfortunately, I am not completely content with the
changes.
Some responses should not only answer my question but also should find their
way into the manuscript, as other people might have the same questions. I would
appreciate, if the authors could add explanations to the text where they didn't do
so already. Sometimes it just needs a few words in brackets (e.g. the number of
excluded participants because of missings)
The new Table 1 should be extended by all other factors mentioned in the initial
Table 4 (sex, smoking, diseases) and I don't think Table 5 is necessary. I would
recommend to just mention the units/grouping in the text (most commonly under
statistics but it would fit into 2.1.2) or in a footnote.
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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
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from apparent manipulation?
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