TABLE 3.

Number of countries (n = 19) that had a decrease, no change, or increase* in the prevalence of five indicators of adolescent violence, from the first to last cycle the indicator was available (Health Behaviour in School-aged Children study, 1994–2022 for 19 countries).

Frequent physical Fighting (2002–2022)		Decreased	No change	Increased
Boys	11 years	13	5	1
	13 years	13	6	0
	15 years	15	4	0
Girls	11 years	2	14	3
	13 years	3	10	6
	15 years	5	12	2
Bullying Perpetration (1994 to 2022)
Boys	11 years	17	2	0
	13 years	16	3	0
	15 years	14	5	0
Girls	11 years	15	4	0
	13 years	16	3	0
	15 years	12	7	0
Bullying Victimization (1994 to 2022)
Boys	11 years	16	2	1
	13 years	14	5	0
	15 years	11	6	2
Girls	11 years	13	4	2
	13 years	11	5	3
	15 years	9	7	3
Cyberbullying Perpetration (2018 to 2022)**
Boys	11 years	0	8	10
	13 years	0	8	10
	15 years	1	10	7
Girls	11 years	0	8	10
	13 years	0	13	5
	15 years	5	10	3
Cyberbullying Victimization (2018 to 2022)**
Boys	11 years	0	8	10
	13 years	0	7	11
	15 years	1	10	7
Girls	11 years	0	8	10
	13 years	0	11	7
	15 years	0	14	4

Note: *Changes (decrease, no change, or increase) based on whether 95% CI interval for absolute change overlapped 0, (2) **18 of 19 countries (cyberbullying items not available in Greenland).