The Ultrasound Journal

Table 2 Lung ultrasound score at admission and outcome cut-off

From: Lung ultrasound score predicts outcomes in patients with acute respiratory failure secondary to COVID-19 treated with non-invasive respiratory support: a prospective cohort study

	LUS score cut-off	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Discharge alive	≤ 23	100	58	29	100
Dead	≥ 25	93	70	35	98
Non intubated	≤ 21	100	49	41	100
Intubated	≥ 25	84	77	56	93
Switch to CPAP	≥ 25	62	77	60	75

CPAP: Continuous positive airway pressure

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