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. 2021 Dec 20;12:741087. doi: 10.3389/fphar.2021.741087

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Copyright © 2021 Zou, Chen, Zheng, Sheng, Jia, Wang, Ren, Yang, Li, Dong, Guan, Zhang and Xue.

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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The relationship of 24 h urinary sodium excretion and 24 h urinary albumin excretion. (A) Patients were classified according to the urinary albumin excretion. The data are mean ± SD. *p < 0.05 vs. microalbuminuria group. (B) The patients were divided into four groups according to 24 h urinary sodium excretion. Quartile 1 (Q1) refers to the lowest sodium excretion quartile, and quartile 4 (Q4) indicates the highest sodium excretion quartile. The data are mean ± IQR. **p = 0.001 and ***p = 0.000 vs. Q1 group.