COVID-19(7) Prevalence(6) Saudi Arabia(6) patients(5) severity(5) hepatitis B(5) 95% CI(5) Patient(5) cirrhosis(4) lung infiltration(3) lung field(3) Cytokine storm syndrome(3) Novel coronavirus(3) GI symptom(3) Manifestations(3) acute respiratory distress(3) Middle East(3) Comorbidities(3) syndrome(3) vomiting(3) hospital(3) conducted(3) diarrhea(3) death(3) severe COVID-19 disease(3) Hepatitis(3) Altered mental status(3) university hospital(3) single center(3) AOR(3)