Predictive values of the modified Mallampati test, upper lip bite test, thyromental distance and ratio of height to thyromental distance to predict difficult laryngoscopy in pediatric elective surgical patients 5–12 years old at selected Addis Ababa governmental hospitals, Ethiopia: a multicenter cross-sectional study

Table 4 Pairwise comparison of ROC curves for the airway tests

Parameter	Difference between Areas	SE^a	95% CI	z statistic	P-value
ULBT ~ MMT	0.107	0.0529	0.00366—0.211	2.029	0.0424
RHTMD ~ MMT	0.107	0.0491	0.0108—0.203	2.180	0.0293
TMD ~ MMT	0.0143	0.0397	-0.0634—0.0921	0.361	0.7180
ULBT ~ RHTMD	0.000382	0.0616	-0.120 to 0.121	0.00620	0.9951
TMD ~ RHTMD	0.0926	0.0576	-0.0204 to 0.206	1.607	0.1081
ULBT ~ TMD	0.0930	0.0439	0.00706 to 0.179	2.121	0.0339

ISSN: 1471-2253