Table 3. Descriptive statistics on profiles of child exposure to high-aggression classrooms.

	Profiles (N = 4,032)
	Never (n = 959)	Primacy (n = 436)	Recency (n = 469)	Chronicity (n = 1,267)	Pervasive (n = 901)
School characteristics
Urban	380 (17.0)	249 (11.1)	264 (11.8)	822 (36.8)	521 (23.3)
Rural	579 (32.2)	187 (10.4)	205 (11.4)	445 (24.8)	380 (21.2)
Ethnicity
African American	157 (12.0)	129 (9.9)	137 (10.5)	520 (39.7)	365 (27.9)
European American	802 (29.4)	307 (11.3)	322 (12.2)	747 (27.4)	536 (19.7)

Note: Numbers in parentheses represent percentage of students with each profile within each row.