Table 1.

Comparison of auscultation and point-of-care echocardiography against standard transthoracic study as % (95% CI) performed by a scientist or consultant cardiologist

	Auscultation		Point-of-care echocardiography
	Scientist	Cardiologist	Scientist	Cardiologist
Sensitivity	83 (64 to 94)%	91 (72 to 99)%	100 (88 to 100)%	100 (85 to 100)%
Specificity	100 (95 to 100)%	100 (93 to 100)%	100 (95 to 100)%	100 (93 to 100)%
PPV	100%	100%	100%	100%
NPV	93 (86 to 97)%	96 (87 to 99)%	100%	100%
Accuracy	95 (89 to 98)%	97 (91 to 100)%	100 (95 to 100)%	100 (98 to 100)%
Positive likelihood	–	–	–	–
Negative likelihood	0.17 (0.08 to 0.38)	0.09 (0.02 to 0.33)	0	0

NPV, negative predictive value; PPV, positive predictive value.