Table 1. Results of the three laryngoscopes.

	Airtraq® (n = 20)	McGrath® (n = 20)	Macintosh (n = 20)	P value
Success rate [95% CI] (%)	100 [95.1 to 100]	72 [58.6 to 82.5]	45 [32.1 to 58.4]	<0.001
Time for successful intubation (sec)	40 (30–62)	35 (27–61)a	47 (41–57)b	0.88
MC-L grade	1 (1–1)	2a (2a–2b)	4 (4–4)	<0.001
POGO score (%)	100 (100–100)	65 (30–80)	0 (0–0)	<0.001
Severity of dental trauma	0 (0–1)	2 (1–2)	2 (2–2)	<0.001

MC-L, modified Cormack-Lehane; POGO, percentage of glottic opening score. a, b: two and six participants were excluded from the data because of intubation failure in all three attempts. Values are presented as median (interquartile range), or percentage [95% confidence interval].