. Author manuscript; available in PMC: 2009 Feb 2.

Published in final edited form as: J Abnorm Child Psychol. 2009 Feb;37(2):153–167. doi: 10.1007/s10802-008-9278-9

Table 4.

Correlations from bivariate models between ADHD and ODD symptoms, between ADHD and CD symptoms, and between ODD and CD symptom, age 9–10 years

	Analyses including opposite sex twins			Analyses excluding opposite sex twins
	Correlations
	r_g	r_c	r_e	r_g	r_c	r_e

ADHD – ODD	.49 (.17 – .81)	1.00 (−1.00 – 1.00)	.30 (.19 – .40)	.45 (.08 – .79)	1.00 (−1.00 – 1.00)	.30 (.19 – .40)
ADHD – CD	.43 (.23 – .64)	1.00 (−1.00 – 1.00)	.10 (−.02 – .21)	.39 (.08 – .67)	1.00 (.98 – 1.00)	.09 (−.03 – .21)
ODD – CD	.51 (.21 – .83)	.81 (.12 – 1.00)	.21 (.11 – .33)	.43 (−.03 – .85)	.77 (.25 – 1.00)	.22 (.10 – .33)

Note. rg = genetic correlation; rc = shared environmental correlation; re = non-shared environmental correlation