Review for 10.1186/s12876-019-1120-z (2019)

Reviewer’ s report
Title: A newly noninvasive model for prediction of non-alcoholic fatty liver disease: utility of
serum prolactin levels
Version: 0Date: 03 Aug 2019
Reviewer: Shahram Agah
Reviewer's report:
Please include all comments for the authors in this box rather than uploading your report as an
attachment. Please only upload as attachments annotated versions of manuscripts, graphs,supporting materials or other aspects of your report which cannot be included in a textformat.Please overwrite this text when adding your comments to the authors.1- Why theindividuals and outputs were grouped based on Male and Female? Is Gender so important in otherstudies?2- Page 9, Line 20: "The Mann-Whitney U and Kruskal Wallis test was used tocompare" changed into The Mann-Whitney U test and Kruskal Wallis test were used to compare3-Page 10, Line 1: "Using a nonparametric approach', what is the name of nonparametricapproach?4- Page 10, Line 31: In 4 lines (31-35), you have used "randomize" 3times. Please itsubstitute with another words such as chosen, selected or et al.5- Page 10, Line 59: Backwardmethod in Multivariate logistic regression, All the independent variables are entered into theequation first and each one is deleted one at a time if they do not contribute to the regressionequation, is better than Forward method. Please check with this method.6- In Table 2: what isthe sign ("~")?7- In Table 3: Please report AUC and Confidence interval of AUC
Are the methods appropriate and well described?
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YesDoes the work include the necessary controls?
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YesAre the conclusions drawn adequately supported by the data shown?
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YesAre 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 furtherassessment in your comments to the editors.
I recommend additional statistical review
Quality of written English
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Needs some language corrections before being publishedDeclaration of competing interests
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