Neck circumference to inter-incisor gap ratio: a new predictor of difficult laryngoscopy in cervical spondylosis patients

Table 5 Predictive values of tests for predicting difficult laryngoscopy

Indicators	AUC	95% CI	SE
RNIIG	0.80	0.73–0.86	0.03
RNTMD	0.74	0.65–0.84	0.05
IIG	0.71	0.63–0.79	0.04
NC	0.69	0.61–0.77	0.04
MMT	0.67	0.58–0.77	0.05
TMD	0.66	0.55–0.76	0.05

Abbreviations: AUC area under the curve, 95%CI 95% confidence interval, SE standard error, RNIIG the neck circumference/inter-incisor gap ratio, RNTMD the neck circumference/thyromental distance ratio, IIG inter-incisor gap, NC neck circumference, MMT modified Mallampati test, TMD thyromental distance

ISSN: 1471-2253