Table 2.

Comparison of direct laryngoscopy (DL) and C-MAC4 with Miller technique (C-MAC4/SBT) views in patients with sub-optimal conventional laryngoscopic view (C/L≥2a).

	C-MAC4/SBT views
DL views	C/L I	C/L IIa	C/L IIb	C/L III	C/L IV
C/L IIa, n = 11	5	5	1	0	0
C/L IIb, n = 5	1	2	2	0	0
C/L III, n = 5	2	1	1	1	0
C/L IV, n = 3	0	3	0	0	0
Totals n = 24	8	11	4	1	0

Data are given as absolute numbers. C/L indicates Cormack and Lehane view,[13] modified by Yentis and Lee;[14]DL: Direct laryngoscopy.