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Longitudinal hematologic and immunologic variations associated with the progression of COVID-19 patients in China

Open access
Chen, Ruchong, Sang, Ling, Jiang, Mei, Yang, Zhaowei, Jia, Nan, Fu, Wanyi, Xie, Jiaxing, Guan, Weijie, Liang, Wenhua, Ni, Zhengyi, Hu, Yu, Liu, Lei, Shan, Hong, Lei, Chunliang, Peng, Yixiang, Wei, Li, Liu, Yong, Hu, Yahua, Peng, Peng, Wang, Jianming, Liu, Jiyang, Chen, Zhong, Li, Gang, Zheng, Zhijian, Qiu, Shaoqin, Luo, Jie, Ye, Changjiang, Zhu, Shaoyong, Zheng, Jinping, Zhang, Nuofu, Li, Yimin, He, Jianxing, Li, Jing, Li, Shiyue, Zhong, Nanshan·2020·Journal of Allergy and Clinical Immunology

Abstract

Background Crucial roles of hematologic and immunologic responses in progression of coronavirus disease 2019 (COVID-19) remain largely unclear. Objective We sought to address the dynamic changes in hematologic and immunologic biomarkers and their associations with severity and outcomes of COVID-19. Methods A retrospective study including 548 patients with COVID-19 with clarified outcome (discharged or deceased) from a national cohort in China was performed. Cross-sectional and longitudinal variations were compared and the associations with different severity and outcomes were analyzed. Results On admission, the counts of lymphocytes, T-cell subsets, eosinophils, and platelets decreased markedly, especially in severe/critical and fatal patients. Increased neutrophil count and neutrophils-to-lymphocytes ratio were predominant in severe/critical cases or nonsurvivors. During hospitalization, eosinophils, lymphocytes, and platelets showed an increasing trend in survivors, but maintained lower levels or dropped significantly afterwards in nonsurvivors. Nonsurvivors kept a high level or showed an upward trend for neutrophils, IL-6, procalcitonin, D-dimer, amyloid A protein, and C-reactive protein, which were kept stable or showed a downward trend in survivors. Positive correlation between CD8+ T-cell and lymphocytes count was found in survivors but not in nonsurvivors. A multivariate Cox regression model suggested that restored levels of lymphocytes, eosinophils, and platelets could serve as predictors for recovery, whereas progressive increases in neutrophils, basophils, and IL-6 were associated with fatal outcome. Conclusions Hematologic and immunologic impairment showed a significantly different profile between survivors and nonsurvivors in patients with COVID-19 with different severity. The longitudinal variations in these biomarkers could serve to predict recovery or fatal outcome.

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Metadata

Authors
Chen, R., Sang, L., Jiang, M., Yang, Z., Jia, N., Fu, W., Xie, J., Guan, W., Liang, W., Ni, Z., Hu, Y., Liu, L., Shan, H., Lei, C., Peng, Y., Wei, L., Liu, Y., Hu, Y., Peng, P., Wang, J., Liu, J., Chen, Z., Li, G., Zheng, Z., Qiu, S., Luo, J., Ye, C., Zhu, S., Zheng, J., Zhang, N., Li, Y., He, J., Li, J., Li, S., & Zhong, N.
Venue
Journal of Allergy and Clinical Immunology
Publisher
Elsevier BV
Published
2020-07
Volume
146
Issue
1
Pages
89-100
ISSN
0091-6749 (ISSN-L)
OpenAlex
W3023125802
Cited by
380
References
52
FWCI
9.17
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Longitudinal hematologic and immunologic variations associated with the progression of COVID-19 patients in China. https://app.cochat.ai/papers/10.1016/j.jaci.2020.05.003
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Chen, R., Sang, L., Jiang, M., Yang, Z., Jia, N., Fu, W., Xie, J., Guan, W., Liang, W., Ni, Z., Hu, Y., Liu, L., Shan, H., Lei, C., Peng, Y., Wei, L., Liu, Y., Hu, Y., Peng, P., . . . Zhong, N. (2020). Longitudinal hematologic and immunologic variations associated with the progression of COVID-19 patients in China. Journal of Allergy and Clinical Immunology. https://doi.org/10.1016/j.jaci.2020.05.003

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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