Predictive Values of Preoperative Tests for Difficult Laryngoscopy and Intubation in Adult Patients at Tikur Anbessa Specialized Hospital

Table 2

Preoperative airway parameters and their distribution with difficult laryngoscopy and intubation among surgical patients in Tikur Anbessa Hospital from February 1 to March 30, 2016.

Parameter	Frequency, (%)	DL, (%)	DI, (%)
IID
<4 cm	56 (23.1)	17 (30.3)	8 (14.3)
≥4 cm	186 (76.9)	16 (8.6)	4 (2.1)
MP
A	175 (72.3)	15 (8.5)	7 (4)
B and C	67 (27.7)	18 (26.8)	5 (7.4)
MMC
I and II	214 (88.4)	16 (7.5)	5 (2.3)
III and IV	28 (11.6)	17 (60.7)	7 (25)
TMD
<6 cm	48 (19.8)	17 (35.4)	7 (14.5)
≥6 cm	194 (80.2)	16 (8.2)	5 (2.5)
SMD
<12 cm	36 (14.9)	10 (27.7)	1 (2.7)
≥12 cm	206 (85.1)	23 (11.1)	11 (5.3)
CL
I and II	209 (86.4)	0	1 (0.47)
III and IV	33 (13.6)	33 (13.6)	11 (33.3)