Influence of maxillofacial skeletal morphology on difficult laryngoscopy

BMC Anesthesiology

Table 4 The sensitivity of the Sassouni 5 group and other predictors of difficult laryngoscopy

	Sensitivity	Specificity	PPV	NPV
Sassouni 5	60.0%	79.7%	20.5%	95.8%
Mallampati Score ≥ 3	26.7%	92.9%	22.2%	93.4%
Wilson Score ≥ 2	73.3%	52.9%	12.0%	95.8%
HMD < 3 finger breadths	73.3%	59.3%	13.6%	96.2%

PPV, positive predictive value; NPV, negative predictive value; HMD, hyomental distance. Difficult laryngoscopy was defined as CL grade ≥ 3.

ISSN: 1471-2253