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Medical Science Monitor Basic Research


eISSN: 1643-3750

Retrospective Study of Clinical Features of COVID-19 in Inpatients and Their Association with Disease Severity

Hao Wang, Yang Xing, Xiaohong Yao, Yang Li, Jietao Huang, Jun Tang, Shasha Zhu, Ying Zhang, Jun Xiao

Department of Cardiovascular Medicine, Chongqing University Center Hospital, Chongqing, China (mainland)

Med Sci Monit 2020; 26:e927674

DOI: 10.12659/MSM.927674

Available online: 2020-11-09

Published: 2020-12-21

BACKGROUND: The aim of this study was to analyze the clinical features and laboratory indices of patients with coronavirus disease (COVID-19) and explore their association with the severity of the disease.
MATERIAL AND METHODS: A total of 61 patients with COVID-19 were divided into groups with common symptoms and with severe diseases, and clinical data were collected to analyze and compare the differences between them.
RESULTS: In patients with severe COVID-19, compared with the common group, lymphocyte count and albumin levels were lower, and aspartate aminotransferase (AST), blood urea, blood creatinine, lactate dehydrogenase (LDH), and C-reactive protein (CRP) levels, and prothrombin time (PT) were elevated (all P<0.05). The neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), mean platelet volume-to-lymphocyte ratio (MPVLR), and C-reactive protein-to-albumin ratio (CAR) were significantly elevated in the severe group compared with the group with common symptoms; however, the lymphocyte-to-monocyte ratio (LMR) was significantly reduced (P<0.05). Univariate logistic regression showed that lower lymphocyte count, prolonged PT, elevated CRP and LDH levels, and elevated NLR, PLR, MPVLR, and CAR were risk factors for COVID-19 severity (P<0.05). Multivariate logistic regression showed that elevated CRP levels (odds ratio [OR], 0.028; 95% confidence interval [CI]: 0.002–0.526; P=0.017), prolonged PT (OR, 0.014; 95% CI: 0.001–0.341; P=0.09), and an MPVLR >8.9 (OR, 0.026; 95% CI: 0.002–0.349; P=0.006) were independent risk factors for COVID-19 severity.
CONCLUSIONS: Elevated CRP and prolonged PT, and an MPVLR >8.9 were independent risk factors for COVID-19 severity.

Keywords: COVID-19, Medical Informatics, Nutrition Assessment, Pneumonia