Reviewer’s report
Title: 
Premenstrual dysphoric disorder is associated with the longer length from
clitoris to urethra
Version: 
1 
Date: 
28 Oct 2020
Reviewer's report:
The study is interesting, but I have the following suggestions, basically in the
methodology used:
1) Include the study design. 
it is not clear to me if this is a cross sectional or case
control study. 
If it is a cross sectional, the prevalence of the disorder is very high
(32% of the 77) which should be explained and compared with other studies. 
If
this is a case control study, describe how you identify cases and how the controls
2) Include the sampling methods. Probabilistic? (systematic, etc) 
No
probabilistic? (consecutive, convenience, etc).. This will make the reader to
realize the possible bias in the analysis. 
I am almost sure you used some
sampling methods, because it calls my attention to have just 75 participants in
two years. 
3) Describe the participants hospitals. 
Describe how are the gynecological or
psychosomatic clinic of those
hospitals. It is good to have an idea of the characteristics of the study sites. 
4) Describe how many women refused to participate and if possible why they
refused.
These items have the main objective of clarifying about the characteristics of the
sample and population and the possible bias introduced.
Otherwise, in general, the study is well done
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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?
No
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