Ain-Shams Journal of Anesthesiology

Table 3 ROC analysis for the validity of alveolar gap, maximum cleft width, and body weight in prediction of difficulty of intubation

From: Alveolar cleft and maximum cleft width as predictors for difficult laryngoscopy and intubation in patients with unilateral complete cleft lip and palate

		Alveolar gap	Maximum cleft width	Body weight
	AUROC (95%CI)	0.88 (0.82–0.92)	0.91 (0.86–0.95)	0.76 (0.69–0.82)
	p value (AUC = 0.5)	< 0.001	< 0.001	< 0.001
	Cut-off value	≤ 10.0 mm	≤ 11.0 mm	≤ 5.75 kg
Measures of validity	Sensitivity (%)	100%	100%	83.33%
	Specificity (%)	76.10%	82.39%	64.15%
	PPV (%)	44.1%	51.7%	30.5%
	NPV (%)	100%	100%	95.3%
	Positive likelihood ratio	4.18	5.68	2.32
	Negative likelihood ratio	0	0	0.26

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