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. 2022 Mar 30;19(7):4122. doi: 10.3390/ijerph19074122

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Correlation between salivary glucose of six saliva collection method and blood glucose. (a) The correlation between SWS glucose with blood glucose (R² = 0.001127, Sy. x = 0.6183), (b) The correlation between UWS glucose with blood glucose (R² = 0.8109, Sy. x = 0.3217), (c) The correlation between SPS glucose with blood glucose (R² = 0.1568, Sy. x = 0.5597), (d) The correlation between UPS glucose with blood glucose (R² = 0.9153 (maximum correlation), Sy. x = 0.2772), (e) The correlation between SSS glucose with blood glucose (R² = 0.05544, Sy. x = 0.5844), (f) The correlation between USS glucose with blood glucose (R² = 0.8492, Sy. x = 0.2236). Sy. x means standard error of estimate (also seen as SEE).