ABSTRACT
BackgroundTo analyze the clinical outcomes of COVID-2019 cases and the influencing factors of severe cases in Qingdao City and provide theoretical reference basis for optimizing medical treatment and the strategies of epidemic prevention and control. MethodsThe demographical, epidemiological, clinical data of 81 confirmed COVID-2019 cases in Qingdao City were collected via epidemiological investigation and clinical process tracking. The status of cure, discharge, clinical outcome and influencing factors were analyzed in our study. ResultsAmong the 81 cases，12(14.81%) and 55(67.90%) were mild and ordinary, 9(11.11%) and 4(4.94%) were severe and critical, and 1 critical cases (1.23%) developed into fatal, with the fatality rate 1.23%. The median time from onset of symptoms to hospital admission were 3.67 days (IQR, 1.75 to 6.71). The median duration of illness were 21.00 days (IQR, 16.00 to 26.00) and the median length of hospitalization were 15.63 days (IQR, 11.60 to 20.50). The median time for progression to severe cases was 6.00 days after onset (IQR, 5.00-10.00). The median duration of severe cases was 8.00 days (IQR, 6.25-14.00). Age older than 40 years old (OR=5.797, 95%CI: 1.064~31.568) and first chest CT abnormal (OR=0.1140, 95%CI: 0.014~0.923) were the influencing factors of COVID-2019 severe cases. ConclusionsOlder age and first chest CT normal would be more prone to develop to severe cases of COVID-2019. During the epidemic period, it was necessary to classify and manage cases according to the needs of prevention and control in order to ensure the rational allocation of medical resources.