Predicting difficult laryngoscopy in morbidly obese Thai patients by ultrasound measurement of distance from skin to epiglottis: a prospective observational study

Table 3 Multivariate logistic regression of difficult laryngoscopy factors

Factors	Coefficient	Standard Error	P-value	95%CI	Allocated Weight
Age > 43 years	1.35	0.73	0.065	0.11 to 2.92	8
Thyromental distance > 68 mm	1.17	0.66	0.077	−0.19 to 2.35	7
Distance from skin to epiglottis > 13 mm	0.98	0.85	0.252	−0.70 to 2.65	6

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