Magnitude and Predisposing Factors of Difficult Airway during Induction of General Anaesthesia

Table 4

Difficult laryngoscopy and difficult airway predictors.

Variables	Sensitivity	Specificity	PVPT	PVNT	Area	value	95% CI interval
							Upper	Lower
OPV	65.4%	92.5%	54.8%	95.0%	0.789	<0.001	0.677	0.902
JSD	65.4	83.3%	35.4%	94.5%	0.744	<0.001	0.631	0.856
ILL	73.1%	83.3%	58%	95.7%	0.788	<0.001	0.678	0.886
Combined	26.9%	97.8%	63.6%	90.5%	0.624	0.041	0.494	0.754
SMD	42.3%	71%	16.9%	84.8%	0.566	0.273	0.445	0.687
MBL	26.9%	85.5%	20.6%	85.5%	0.562	0.306	0.438	0.686
TMD	34.6%	51.1%	9%	84.5%	0.428	0.238	0.313	0.544