Comparison of epidemiological and clinical characteristics of COVID-19 patients with and without Wuhan exposure history in Zhejiang Province, China

J Zhejiang Univ Sci B. 2020 May;21(5):369-377. doi: 10.1631/jzus.B2000112. Epub 2020 May 9.

Abstract

Background: A novel coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), first identified in Wuhan, China, has been rapidly spreading around the world. This study investigates the epidemiological and clinical characteristics of coronavirus disease 2019 (COVID-19) patients in Zhejiang Province who did or did not have a history of Wuhan exposure.

Methods: We collected data from medical records of confirmed COVID-19 patients in Zhejiang Province from Jan. 17 to Feb. 7, 2020 and analyzed epidemiological, clinical, and treatment data of those with and without recorded recent exposure in Wuhan.

Results: Patients in the control group were older than those in the exposure group ((48.19±16.13) years vs. (43.47±13.12) years, P<0.001), and more were over 65 years old (15.95% control vs. 5.60% exposure, P<0.001). The rate of clustered onset was also significantly higher in the control group than in the exposure group (31.39% vs. 18.66%, P<0.001). The symptom of a sore throat in patients in the exposure group was significantly higher than that in the control group (17.30% vs. 10.89%, P=0.01); however, headache in the exposure group was significantly lower than that in the control group (6.87% vs. 12.15%, P=0.015). More patients in the exposure group had a significantly lower level of lactate dehydrogenase (LDH) and aspartate aminotransferase (AST) than those in the control group. There was no significant difference in any degree of COVID-19 including mild, severe, and critical between the two groups.

Conclusions: From the perspective of epidemiological and clinical characteristics, there was no significant difference between COVID-19 patients with and without Wuhan exposure history.

Keywords: Coronavirus disease 2019 (COVID-19); Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Zhejiang Province; Wuhan.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aspartate Aminotransferases / blood
  • Betacoronavirus
  • COVID-19
  • Case-Control Studies
  • Child
  • Child, Preschool
  • China / epidemiology
  • Coronavirus Infections / epidemiology*
  • Coronavirus Infections / physiopathology
  • Coronavirus Infections / therapy
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • L-Lactate Dehydrogenase / blood
  • Male
  • Middle Aged
  • Pandemics
  • Pneumonia, Viral / epidemiology*
  • Pneumonia, Viral / physiopathology
  • Pneumonia, Viral / therapy
  • Retrospective Studies
  • SARS-CoV-2
  • Young Adult

Substances

  • L-Lactate Dehydrogenase
  • Aspartate Aminotransferases