Table 2.

Accuracy of difficult airway prediction in the experimental and control groups. Per χ² test, statistical significance between the groups is P=0.032

	Correct	%	Incorrect	%	Total
Control	3551	71.20	1433	28.80	4984
Experimental	2397	69.10	1074	30.90	3471
Total	5948		2507		8455