Table 3.

Score Categorized Probability Groups, Likelihood Ratio and 95% Confidence Interval of Difficult Laryngoscopy

Score Categorized Probability Groups	Score	Difficult Laryngoscopy (n=83)		Non-Difficult Laryngoscopy (n=534)		LR+	95% CI	P-value
		n	%	n	%
Low	0	15	18.07	430	80.52	0.22	0.14–0.36	<0.001
Moderate	1–4	23	27.71	66	12.36	2.24	1.48–3.39	<0.001
High	5–15	45	54.22	38	7.12	7.62	5.29–10.97	<0.001
Mean (SD)		5.86 ± 4.05		1.00 ± 2.36				<0.001