Reviewer’ s report
Title: Fear of childbirth, anxiety and depression in three groups of primiparous pregnant women
not attending, irregularly attending and regularly attending childbirth preparation classes
Version: 1Date: 02 May 2020
Reviewer: Tadayuki Iida
Reviewer's report:
The process of determining sample size is described in the text. There is a minimum sample size of
62 participants, and it suffices if there are more than this one. In this study, 103 participantsremained in the "Assessed for eligibility in not attending group", 104 patients remained in the"Assessed for eligibility in regular attending group" and 106 patients remained in the " Assessedfor eligibility in irregular attending group " even after they were excluded from each interventiongroup.Why did you not use all these patients for statistical analysis and compare?Why did you do random sampling?Please describe these reasons in the text. In addition, if the results are the same as in this studywhen statistical analysis is performed for all people, please add them in limitation.
Figures and tables
In Figure.1, it is "not attending group". However, in Table 1, it is "Non-attending". Please unifythe terms. Please unify the arrangement of each group shown in the figures and tables.
Table1　
P-Value→p-Value
Table2
Please describe explanation of N-A, I-A and R-A under the table.
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
NoDoes the work include the necessary controls?
If not, please specify which controls are required in your comments to the authors.
YesAre the conclusions drawn adequately supported by the data shown?
If not, please explain in your comments to the authors.
Yes
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 furtherassessment in your comments to the editors.
I am able to assess the statistics
Quality of written English
Please indicate the quality of language in the manuscript:
AcceptableDeclaration of competing interests
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