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. 2014 Mar 6;11:43. doi: 10.1186/1743-422X-11-43

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Copyright © 2014 Trimbitas et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Title: positive correlation between age and average seropositivity. Legend: Subjects were binned into 7 age groups (21-25; 26-30; 31-35; 36-40; 41-45; 46-50; 51-55) and average seropositivity was calculated per age group. Pearson’s Product Moment reveals a moderately positive correlation between age and seropositivity (r = 0.726 95% CI [0.633, 0.798]). Seropositivity (proportion) is specified on the Y-axis, while age groups are specified on the X-axis. Individual data points are shown in circles, while average seropositivity per age group is shown by the red line. Best-fit line upon which the correlation is based is indicated in green.