Table 3.

Concurrent and prospective relationships between CD/CU groups and outcomes

	Omnibus test	1. No CD diagnosis mean n=215	2. CD – CU mean n=21	3. CD + CU mean n=14	Significant group differences
Concurrent relationships (age 17)
Aggressive symptoms	F=146.4 p<.001	.07 (.28)	1.8 (1.5)	1.8 (1.3)	1<2, 3
Rule Breaking Symptoms	F=99.1 p<.001	.40 (.71)	2.9 (1.3)	3.0 (1.8)	1<2, 3
Arrest record (adolescent)	χ2=46.5 p<.001	24% (.43)	89% (.31)	92% (.29)	1<2,3
Prospective relationships (age 20)
Self-reported delinquency	F=6.41 p<.01	10.6 (8.8)	19.6 (12.8)	11.1 (5.7)	1, 3<2
APD symptoms	F=16.3 p<.001	.68 (1.4)	2.0 (1.5)	2.0 (1.9)	1<2,3
% APD diagnosis	χ2=18.8 p<.001	13% (.34)	43% (.51)	43% (.51)	1<2,3
% Depression diagnosis	χ2=11.1 p<.01	7% (.26)	29% (.46)	14% (.36)	1<2
% Substance Abuse diagnosis	χ2=8.52 p<.05	25% (.44)	52% (.51)	43% (.51)	1<2,3
% Substance Dependence diagnosis	χ2=17.8 p<.001	15% (.36)	52% (.51)	29% (.47)	1<2,3
CU traits (age 20)	F=6.92 p=.001	2.4 (1.7)	2.9 (1.9)	4.2 (1.7)	1<3
Arrest record (adult)	χ2=18.3 p<.001	26% (.44)	71% (.46)	29% (.47)	1,3<2

N=250 for all analyses and the data from the first imputed dataset are presented though note that results were equivalent across 5 imputed datasets. Statistical comparisons of the means were conducted on the log-transformed data (for aggressive, rule breaking and self-reported delinquency), as they better approximate normality. However, the corresponding raw symptom counts are presented in here and discussed in the text to promote ease of understanding. Post-hoc group differences were tested using a Tukey test (for ANOVAs with continuous outcomes) and individual χ² tests (for binary outcomes) and are marked if p<.05. Results with binary outcomes are presented with χ² tests but were similar in terms of significance when using Fisher exact tests or ANOVAs.