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Table 1 Baseline characteristics of patients, vital signs, and laboratory results at admission

From: Lung ultrasound score predicts outcomes in COVID-19 patients admitted to the emergency department

Characteristic (N = 180) Median (IQR) or N (%)
Age (y) 60 (49–70)
Sex
 Female 75 (42%)
 Male 105 (58%)
Comorbidities
 Hypertension 98 (55%)
 Diabetes 69 (39%)
 Congestive heart failure 25 (14%)
 Chronic respiratory disease 15 (8%)
 Chronic and end-stage renal disease 11 (6%)
Duration of symptoms before hospital admission (days) 7 (5–10)
Oxygen saturation < 93%b 78 (43%)
Oxygen saturation—Median (IQR) 93 (90–96)
Received supplemental oxygen at triage 136 (76%)
Type of supplemental oxygen
 Nasal cannula 53 (30%)
  Nasal cannula oxygen flow 2.8 ± 1.4 L O2/min
 Venturi mask (FiO2 = 50%) 1 (1%)
 Nonrebreather mask 35 (19%)
 Nonrebreather mask oxygen flow 11.9 ± 3.5 L O2/min
 Mechanical ventilation 47 (27%)
 Mechanical ventilation FiO2 86.5 ± 21.8%
 Respiratory rate > 24 breaths/minb 91 (51%)
 Respiratory rate—median (IQR) 25 (20–30)
 Heart rate > 100 beats/min 53 (29%)
 Heart rate—median (IQR) 92 (80–103)
 PaO2/FiO2 on admission, median (IQR) 120 (64–230)
 LUSa 18.7 ± 6.8
  1. IQR interquartile range, LUS lung ultrasound score
  2. aMean ± standard deviation
  3. bMost of these patients did not tolerate removal of supplemental oxygen to measure at room air