Table 1.

Tracheal intubation data for normal airway scenario. Data are reported as median (IQR [range]) or as number (%)

	Macintosh	C-MAC	D-Blade	p value
Overall success rate (%)	26 (100)	26 (100)	26 (100)	1.0
Number of intubation attempts (%)
1	23 (89)	25 (96.2)	22 (85)	0.3
2	3 (11)	1 (3.8)	4 (15)
3	0	0	0
Summary	1 (1–1 [1–2])	1 (1–1 [1–1])	1 (1–1 [1–2])
Cormack and Lehane grade
1	18 (69.2)	24 (92.3)	26 (100)	<0.001
2.	8 (30.8)	2 (7.7)	0
3.	0	0	0
4.	0	0	0
Summary	1 (1–2 [1–2])*†	1 (1–1 [1–2])	1 (1–1 [1–1])
POGO score	70 (20–80 [10–90])*†	100 (90–100 [40–100])	100 (100–100 [100–100])	<0.001
Number of optimization maneuvers (%)
0	24 (92.3)	26 (100)	26 (100)	0.1
1	2 (7.7)	0	0
2	0	0	0
Summary	0 (0–0 [0–1])	0 (0–0 [0–0])	0 (0–0 [0–0])
Severity of dental compression (%)
0	10 (38.5)	20 (76.9)	18 (69.2)	0.03
1	16 (61.5)	6 (23.1)	8 (30.8)
2	0	0	0
Summary	1 (0–1 [0–1])*†	0 (0–0.25 [0–1])	0 (0–1 [0–1])

^*p<0.05 compared with C-MAC laryngoscope;

^†p<0.05 compared with D-Blade laryngoscope.

POGO: Percentage of glottic opening