Ain-Shams Journal of Anesthesiology

Table 3 Predictive ability of BMI, MMT, SMDD, NC, and NC/SMDD ratio for difficult intubation (DI)

From: Sternomental displacement and neck circumference: a new look for the neck as a difficult airway predictor in obese surgical patients—a cohort study

	AUROC	95% CI	P value	Sensitivity	Specificity	+ v predictive	-ve predictive	Cut-off value
BMI	0.72	0.64–0.79	0.001	60%	80%	20%	96%	> 43 kg/m²
MMT	0.91	0.85–0.95	0.001	90%	83%	32%	99%	> 2
SMDD	0.93	0.87–0.97	0.001	99%	86%	37%	99%	< 4.8cm
NC	0.73	0.64–0.80	0.02	70%	78%	20%	97%	> 43cm
NC/SMDD ratio	0.92	0.86–0.96	0.001	90%	83%	30%	99%	> 8.8

AUROC curve, area under the receiver operating characteristic curve, BMI body mass index, MMT modified Mallampati test, SMDD sternomental displacement, NC neck circumference

Back to article page