Diagnostic Efficacy and Clinical Value of Ultrasonography in Difficult Airway Assessment: Based on a Prospective Cohort Study

Table 6

Comparison of the accuracy of ultrasonic indexes in predicting difficult endotracheal intubation.

Measurement index	Exact number of cases	Inaccurate number of cases	Accuracy rate (%)	χ ^2
DSE	163	37	81.5	—	—
DSH	106	94	53.0	36.880	˂0.01
DSV	145	55	72.5	4.573	˂0.05
HMD	107	93	53.5	35.738	˂0.01
Tongue width	107	93	53.5	35.738	˂0.01
Tongue thickness	121	79	60.5	21.418	˂0.01

Note: compared with DSE, .