Table 4

Diagnostic accuracy of POCUS for pulmonary manifestations of COVID-19

POCUS
All patients
PCR or CT
All patients
PCR only
Patients without cardiopulmonary disease
PCR or CT
Sensitivity (95%CI)89% (70%–97%)96% (77%–100%)100% (70%–100%)
Specificity (95%CI)59% (46%–71%)59% (47%–71%)76% (54%–90%)
NPV (95%CI)93% (79%–98%)98% (86%–100%)100% (79%–100%)
PPV (95% CI)47% (33%–61%)45% (31%–60%)67% (41%–86%)
LR− (95%CI)0.19 (0.06–0.56)0.07 (0.01–0.49)0
LR+ (95%CI)2.17 (1.58–2.99)2.36 (1.75–3.18)4.17 (2.07–8.37)
  • LR−, negative likelihood ratio; LR+, positive likelihood ratio; NPV, negative predictive value; POCUS, point-of-care ultrasound; PPV, positive predictive value.