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. 2019 Sep 20;9:13644. doi: 10.1038/s41598-019-50178-0

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Clinical characteristics of the four latent profiles. Z-score was displayed in the y-axis, which was the value centered by the population mean and scaled by standard deviation. The use of Z-score facilitated the comparisons between variables measured at different scales. Abbreviations: aPTT: activated partial thrombin time; INR: international normalized ratio; HR: heart rate; RR: respiratory rate; WBC: white blood cell count; UO: urine output; BP: blood pressure; GCS: Glasgow Coma Scale; SpO₂: oxygen saturation of pulse oximetry.