Data collection
All data were retrospectively collected using emergency department
clinical records, including demographic data (age and sex),
comorbidities (HIV status, diabetes, hypertension, cancer, hemopathy,
graft, obesity, chronic lung disease, cardiopathy, immunosuppressive
treatment, corticoid treatment, chronic renal insufficiency), clinical
signs related to COVID-19 (fever, dyspnea, cough, myalgia,
anosmia/ageusia, headaches, rhinorrhea, fatigue, confusion, discomfort,
chest pain and abdominal pain), lymphocyte counts, date of symptom
onset, pulse oximetry (SpO2) at triage.