Table 3.

Between-class comparisons on demographic, antecedent, concurrent, and subsequent factors (n = 3,030)

	Class								Omnibus, χ2 (df)
	Dense male (n = 805)		Dense female (n = 171)		Popular (n = 231)		Average (n = 1,823)
	M or %	SD	M or %	SD	M or %	SD	M or %	SD
Demographic variables1
Age	15.80a	.04	16.62a,b	0.10	15.66b	0.09	16.01a,b	.03	203.69(3)***
Race									33.29(12)***
African American	12.4%		23.9%a		10.1%a		13.7%a
Asian American	5.4%a,b		2.3%a		0.7%		3.6%b
Latino/a	9.3%a		15.7%a,b		0.9%a,b		10.1%b
Native American	3.0%		0.2		2.2%a		1.5%a
White	68.6%a		54.8%a,b		86.1%a,b		69.1%b
Other	1.3%a		3.1%a,b		0.0%b,c		1.9%c
Antecedent early risk factors1
Physical abuse	0.82a	0.03	0.74	0.08	0.57a,b	0.06	0.75b	0.02	30.73(3)***
Sexual abuse	0.08	0.01	0.06	0.02	0.06	0.02	0.07	0.01	3.94(3)
Concurrent risk factors1
Depressive symptoms	10.08a,b	0.16	10.92c,d	0.35	9.00a,c	0.34	9.37b,d	0.10	33.63(3)***
Peer rejection	1.91a	0.02	2.01b	0.04	1.62a,b	0.04	1.81a,b	0.01	152.86(3)***
Delinquency	0.33	0.01	0.29	0.02	0.33	0.02	0.33	0.01	10.81(3)*
Serious violence	0.20	0.01	0.23	0.02	0.19	0.01	0.21	0.01	14.27(3)**
Frequency alc. use	2.12a,b,c	0.04	2.45a	0.08	2.40b	0.08	2.33c	0.02	30.86(3)***
Problems with  alcohol	0.16a,b,c	0.01	0.23a	0.02	0.26b	0.03	0.21c	0.01	37.58(3)***
Aggressive sports	0.60a	0.02	0.37a	0.04	0.98a	0.05	0.70a	0.01	277.03(3)***
Subsequent factors1
Interpersonal violence	19.3%a	–	16.7%	–	13.2%a	–	16.6%	–	19.05(3)***

When the omnibus test is significant, values in a row that share the same subscripts differ at least at p < .008. No pairwise difference tests between classes for the “delinquency” and “serious violence” variables were significant at p < .008 (Bonferroni-corrected: .05 divided by 6) ***¹ Demographic, and concurrent factors are measured at Wave 1; antecedent factors are measured retrospectively at Wave 3 and subsequent factors are measured at Wave 3 and reflect behaviors that occurred after Wave 1

^*p < .05,

^**p < .01,

^***p < .001