Patient characteristics
Patients’ characteristics are described in Table 1. Overall, 397 patients with COVID-19 were enrolled in this study with a median age 47-year (range 20-75); interquartile range (IQR), 38-59, 74.31% (n =295) of patients were males, and 88.41% (n =351) patients were recovered, whereas 11.59% (n =46) were died. Comparing to the recovered patients, the hospitalization period for died patients was significantly shorter (p=0.000), the respiratory rate was higher (p=0.000), and all died patients have required admission to the ICU (x2  test,  p=0.000).
Most of the recovered patients were presented as moderate and severe cases (34.76%, 23.93%) respectively; while the majority of died patients (76.09%) were presented as a critical case. Among 46 died patients, 30.43% (n =9) and 41.30% (n =19) had history of COPD and hypertension, respectively; and was significantly higher than patients recovered from COVID-19 (x2  test,  p=0.00, p=0.10, respectively) (Table 1).