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. 2018 Apr 5;24:7. doi: 10.1186/s40885-018-0092-6

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 2 — Relationship between weekday sleep time and subjective sleepiness. Weekday sleep time shows an inverse relationship with subjective sleepiness (PDSS score - pediatric daytime sleepiness scale) in both groups. The parallel but lower regression line in the HBP group (High blood pressure group) suggests qualitatively similar but quantitatively lower response to weekday sleep deprivation. (HBP group – solid diamonds, solid line; Control group – open squares, dashed line)