Reviewer’s report
Title: 
Predictors of adequate physical activity within a multiethnic polycystic
ovary syndrome patient population: a cross-sectional assessment
Version: 
0 
Date: 
30 Jan 2021
Reviewer's report:
This study is the first to examine the correlates of adequate physical activity
among PCOS patients with a specific focus on racial/ethnic variation. The paper
is well written, the arguments logical and well supported, and the statistical
analysis adequately explained to ensure study replication. I have minor
comments to be addressed by the authors. 
1. The background in the abstract should include the key objective of the study.
Following the current description, the authors could indicate that "therefore, this
study examined the correlates of adequate physical activity among PCOS
patients. 
2. Beyond the data collection, it is important that the authors differentiate the
outcome variable from the predictor variables. The information provided from
lines 123 to 136 can be classified as outcome variable. Data analysis should start
from line 137. 
3. Reference to the results from lines 155 to 163 should be provided. Although
the authors report that pairwise comparison data not shown, I will suggest it is
added as a supplementary file. 
4. The authors should consider adding a supplementary file to reports that
indicate no data shown. 
5. It will be interesting to explore the differences that exist between the
individual ethnic/racial groups instead of just indicating there was a statistically
significant difference among the different racial/ethnic groups. 
6. The authors should consider developing a new table to describe the logistic
regression models in Table 5. Currently, it is not obvious whether the table is
reporting odds ratios or p-values. Also, the authors need to add the confidence
interval values for each point estimate. 
7. Instead of white vs non-white for Tables 4 and 5, I think it would be most
appropriate if the authors distinguished the variable into multiple ethnic/racial
categories. This will facilitate comparison between individual racial groups
against the reference category. 
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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?
Yes
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