Review for 10.1186/s12876-020-01485-8 (2020)

Reviewer’s report
Title: 
Changes in hepatic fibrosis and vitamin D levels after viral hepatitis C
eradication using direct-acting antiviral therapy
Version: 
1 
Date: 
12 Jun 2020
Reviewer's report:
In their article entitled "Improvement of hepatic fibrosis and changes in vitamin
D levels after viral hepatitis C eradication using direct-acting antiviral therapy",
the authors hypothesized that improving hepatic fibrosis and inflammation in
chronic hepatitis C (CHC) patients after eradication with direct-acting antivirals
(DAA) would increase 25-hydroxyVD [25(OH)VD] levels. The main weakness
of the study is very small number of the study patients, in addition to the
abscence of any controls. Minor comments are the language mistakes. The tables
are not well organized. Table one for example include just 2. columns!
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
Yes
Does the work include the necessary controls?
If not, please specify which controls are required in your comments to the
authors.
No
Are the conclusions drawn adequately supported by the data shown?
If not, please explain in your comments to the authors.
No
Are you able to assess any statistics in the manuscript or would you
recommend an additional statistical review?
If an additional statistical review is recommended, please specify what aspects
require further assessment in your comments to the editors.
I recommend additional statistical review
Quality of written English
Please indicate the quality of language in the manuscript:
Not suitable for publication unless extensively edited
Declaration of competing interests
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I declare that I have no competing interests
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