Reviewer ’s report  
 
Title: Attitudes of Undergraduate University Women towards HPV Vaccination: A Cross -
sectional  Study in Ottawa, Canada  
 
Version: 1 Date: 06 Mar 2018  
 
Reviewer: Robert Bednarczyk  
 
Reviewer's report:  
The authors have done a good job addressing the provided feedback. I appreciate the inclusion of 
new figures to visualize some of the findings.  I would offer up the suggestion to a minor revision 
of the figures for clarity.  
Figure 1 - a stacked bar chart, allowing comparison to a benchmark of 100% on the vertical axis, 
would make interpretation a little easier.  Additionally, if there was a way to split out the vaccinated 
from unvaccinated bars (or have some indication in the horizontal ax is as to which are which) that 
would make this a much clearer figure.  
Figure 2 - I think all of the information presented here is good, but it was just a difficult figure to 
follow - moving from vax mean, unvax mean, vax median, unvax median across the four  bars in 
each group had me continuing to look down to verify what I was looking at. Would it be possible 
to split these out into Figure 2a (means) and Figure 2b (median) for clarity?  Additionally, having 
the vertical axis values at the 0.5 precision level  is distracting, especially with the gridlines. I would 
suggest using just whole numbers and no gridlines.  
 
Are the methods appropriate and well described?  
If not, please specify what is required in your comments to the authors.  
Yes 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
Yes 
Are 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 further 
assessment 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:  
Acceptable  
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