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. 2019 Jul 17;10:1541. doi: 10.3389/fimmu.2019.01541

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Copyright © 2019 Ameratunga, Ahn, Steele and Woon.

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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Age ranges of the two groups. The mean age for the entire asymptomatic group was 58.16 (95th CI of mean = 55.18–61.16, range 29–79, sd 11.4, 25th percentile = 50, 75th percentile = 76). The mean age for the entire symptomatic group was 54 (95th CI of mean = 50.2–57.7, range 25–79, sd 14.4, 25th percentile = 45, 75th percentile = 67). There was no statistical difference between the two groups (p = 0.079, unpaired t-test).