The diagnostic accuracy of an inclusive three-window ultrasonography assessment for the rapid authentication of endotracheal tube position in RICU

The Egyptian Journal of Bronchology

Table 6 The diagnostic test performance of TUS, SLS, and DUS in the confirmation of ETT position

	Sensitivity	Specificity	PPV	NPV	Accuracy	AUC	SE	95% Confidence interval
TUS	95.0%	90.0%	97.4%	81.8%	94.0%	0.925	0.042	0. 844–0.999
SLS	93.8%	85.0%	96.2%	77.3%	92.0%	0.900	0.049	0. 797–0.990
Combined TUS and SLS	98.8%	75.0%	94.0%	93.8%	94.0%	0.901	0.059	0.753–0.985
DUS	92.5%	85.0%	96.1%	74.0%	91.0%	0.921	0.042	0. 830–0.994

Data are presented as number (%). TUS Tracheal ultrasonography, SLS Sliding lung sign, DUS Diaphragm motion ultrasonography, AUC Area under the curve, NPV Negative predictive value, PPV Positive predictive value