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. 2020 Apr 28;7:72. doi: 10.3389/fcvm.2020.00072

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Copyright © 2020 Elliot, Hamlin and Lizamore.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Mean difference and SD of the mean differences between experienced and novice operator, and the qualitative outcome. Data represent the mean of the differences in PWV measured by experienced and novice operators, and the SD of the mean differences. Accuracy of the mean differences is represented using diagonal stripes (excellent accuracy) and horizontal stripes (acceptable accuracy). *Excellent SD accuracy. Overall accuracy is the worse of either the mean difference or SD qualitative interpretation: ^†Excellent overall accuracy; ^#Acceptable overall accuracy. ^##PWV from 5 s recording; ^†^†PWV from 10 s recording; ^###PWV from 20 s recording. Quintiles were ordered chronologically according to test date and time (Quintile 1 contains first participants tested).