Reviewer’s report
Title: 
Relationship of attitudes toward uncertainty and preventive health
behaviors with breast cancer screening participation
Version: 
1 
Date: 
04 Feb 2021
Reviewer's report:
The manuscript examined barriers and facilitators of breast cancer screening
among Japanese women.
It is not clear to me why the authors asked for breast cancer screening
participation in the last year when the recommendation is to undergo a
mammography every two years. That could be the reason why the participation
rate in the study is lower than the average screening participation for breast
cancer in Japan.
The study population include old women, up to 85 years. When is recommended
to stop screening for breast cancer in Japan?. Most European countries
recommend screening up to 74 years.
I think there's something missing in the explanation of "time preference": How
satisfied are you with receiving JPY 10,0000 after 13 months instead of
receiving XXXXXX after 1 month?.
The authors stated that smoking, alcohol use, self-employment and
unemployment were factors not significantly associated with screening
participation. That is not correct. Those are factors statistically significant
associated with No screening participation. In other words, smokers are less
likely to participate in breast cancer screening.
I strongly recommend a table with the characteristics distribution of the study
population (n, %) 
according to breast cancer screening participation (yes, no). On
the other hand, the section entitled "univariate analysis of explanatory variables
and breast cancer screening participation" could be deleted.
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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?
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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?
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