Clinical Characteristics of Coronavirus Disease 2019 in China.

N Engl J Med. 2020 Feb 28. doi: 10.1056/NEJMoa2002032.

Clinical Characteristics of Coronavirus Disease 2019 in China.

Guan WJ1, Ni ZY1, Hu Y1, Liang WH1, Ou CQ1, He JX1, Liu L1, Shan H1, Lei CL1, Hui DSC1, Du B1, Li LJ1, Zeng G1, Yuen KY1, Chen RC1, Tang CL1, Wang T1, Chen PY1, Xiang J1, Li SY1, Wang JL1, Liang ZJ1, Peng YX1, Wei L1, Liu Y1, Hu YH1, Peng P1, Wang JM1, Liu JY1, Chen Z1, Li G1, Zheng ZJ1, Qiu SQ1, Luo J1, Ye CJ1, Zhu SY1, Zhong NS1; China Medical Treatment Expert Group for Covid-19.

  1. Abstract BACKGROUND: Since December 2019, when coronavirus disease 2019 (Covid-19) emerged in Wuhan city and rapidly spread throughout China, data have been needed on the clinical characteristics of the affected patients.METHODS: We extracted data regarding 1099 patients with laboratory-confirmed Covid-19 from 552 hospitals in 30 provinces, autonomous regions, and municipalities in China through January 29, 2020. The primary composite end point was admission to an intensive care unit (ICU), the use of mechanical ventilation, or death.RESULTS: The median age of the patients was 47 years; 41.9% of the patients were female. The primary composite end point occurred in 67 patients (6.1%), including 5.0% who were admitted to the ICU, 2.3% who underwent invasive mechanical ventilation, and 1.4% who died. Only 1.9% of the patients had a history of direct contact with wildlife. Among nonresidents of Wuhan, 72.3% had contact with residents of Wuhan, including 31.3% who had visited the city. The most common symptoms were fever (43.8% on admission and 88.7% during hospitalization) and cough (67.8%). Diarrhea was uncommon (3.8%). The median incubation period was 4 days (interquartile range, 2 to 7). On admission, ground-glass opacity was the most common radiologic finding on chest computed tomography (CT) (56.4%). No radiographic or CT abnormality was found in 157 of 877 patients (17.9%) with nonsevere disease and in 5 of 173 patients (2.9%) with severe disease. Lymphocytopenia was present in 83.2% of the patients on admission.CONCLUSIONS: During the first 2 months of the current outbreak, Covid-19 spread rapidly throughout China and caused varying degrees of illness. Patients often presented without fever, and many did not have abnormal radiologic findings. (Funded by the National Health Commission of China and others.).Copyright © 2020 Massachusetts Medical Society.

  2. PMID: 32109013 DOI: 10.1056/NEJMoa2002032


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