All patients' clinical, laboratory, and radiologic characteristics, as well as treatment outcome data, were obtained through medical record extraction.
a ) A total of 95 patients infected with 2019-nCoV were enrolled. Seventy-three had pneumonia based on the CT findings, and 22 did not have pneumonia.
b) Using the ARDS definition, patients were divided into an ARDS group (n = 24) and a non-ARDS group (n = 71)
c) A total of 70 patients underwent CT scanning repeatedly after 1 week of treatment. Based on the findings obtained after comparison with the first CT scan, patients were divided into the pneumonia exacerbation group (n = 19) and the pneumonia relief group (n = 51).