Table 1.

Demographic and clinical characteristics of COVID-19 patients (n = 21)

Sex, n (%) males	16 (76)
Age at diagnosis, years, median (range)	65 (37–90)
Delay between first symptoms and ultrasound, days, median (range)	7 (1–16)
Symptoms of COVID-19, n (%)
Fever	15 (71)
Dyspnoea	12 (57)
Cough	12 (57)
Diarrhoea	3 (14)
C-reactive protein level, mg/l, median (range)	71 (3–300)
O2 saturation at ambient air, %, median (range)	93 (75–100)
Supplemental O2 therapy, l/min. median (range)	2 (0–15)
Respiratory frequency, cycles/min, median (range)	22 (14–28)

Data are n (%) of patients unless indicated.