Table 5.

Self-impression of the knowledge of the choking protocol before and after playing the game (grades from 1 to 5).

Student categories, Time of answering the questionnaire		Median (Q1, Q3)		P value		Effect size
Complete sample population, N=48			<.001		0.120
	Before playing	3 (2, 4)
	After playing	4 (3, 5)
Females, n=32			.002		0.217
	Before playing	3 (2.75, 3.25)
	After playing	3 (3, 4)
Males, n=16			.002		0.345
	Before playing	3 (2, 4)
	After playing	4 (3.75, 5)
Students who did not like playing video games, n=19			.03		0.136
	Before playing	3 (2.5, 3)
	After playing	3 (3, 3.5)
Students who liked playing video games, n=29			<.001		0.407
	Before playing	3 (2, 4)
	After playing	4 (4, 5)
Students who did not have a previous experience of a choking emergency, n=36			<.001		0.147
	Before playing	3 (2, 3.25)
	After playing	4 (3, 4)
Students who had a previous experience of a choking emergency, n=12			.047		0.707
	Before playing	3 (3, 4.25)
	After playing	4.5 (3, 5)