Reviewer’s report
Title: 
Association between sleep quality and central obesity among southern
Chinese reproductive-aged women
Version: 
1 
Date: 
10 Mar 2021
Reviewer's report:
Thank you for producing this insightful work. The revisions have improved the
paper. Here are some suggestions for your consideration.
Line 53: suggestion - "The aims of this study were to explore the association
between sleep quality and central obesity among Chinese reproductive-aged
women, and to identify the independent contributions of sociodemographic
characteristics, health-related factors, and sleep quality to central"
Line 101: replace colon with 
a comma
Line 109-111: suggestion-"Hence, determining the underlying causes as well as
the potentially modifiable risk factors are crucial to improving prevention
program designs, and decreasing the prevalence of central obesity among
women"
Line 113: replace this group wit "amongst women"
Line 114: replace ; with a period (full stop)
Line 115: Gramma. Consider either replacing "are" with "is" in Line 116 or
replace the whole sentence with something like this: "Still, the association
between sleep quality and central obesity amongst Chinese reproductive-aged
women remain uncertain".
Line 112: Suggestion: "Additionally, it may support the discovery of..."
Line 123-124: either say "population" or "demographic", not "population group"
Line 123: insert "the" in-between promote and health
Line 133: delete "at"
Line 138: pregnant or lactating women between the ages of 18 and 49 years were
included.
Line 139: "sleep apnea-hypopnea syndrome (OSAHS)"
Line 167: Who were these qualified examiners? I think it would be with the
readers and authors best interest to explicitly state who the qualified examiners
were (e.g. physician, nurse, etc)
Line 167: duplicate-measuring
Line 173: Bivariate analyses using Independent samples t-test and X2 test were
performed to draw comparison between groups. 
Line 204: Not sure where there is a period between Longhua and Shenzhen
Line 208: remove "were"
Line 210: replace "have" with "had"
Line 252: consider replacing with "and to evaluate the effects of sleep quality on
central obesity among..."
Line 268: "might be due to reduced sleep quality impacting physiological
changes with metabolism, hormone secretion, and appetite regulation"
Line 278: remove "observed"
Line 294: "Thus, our findings may help guide improvements with screening
methods"
Line 320: replace "for" with "over"
Line 321: Consider replacing with "..which may be an insufficient period of time
for assessing the effect of..."
Figure: there is only one independent variable so the label should be singular
Title of Table 2: Delete "characteristics"
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Is the study design appropriate to answer the research question (including the use
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