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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: J Child Psychol Psychiatry. 2011 Sep 26;53(3):271–282. doi: 10.1111/j.1469-7610.2011.02463.x

Table 4.

Group comparisons of Conduct Disorder Symptoms and Comorbid Diagnostic Symptoms in Community Sample

Teacher or Parent
Control (n=669) CU-Only (n=40) CD-Only (n=98) CD+CU (n=39) Test Statistic η p2
CD Symptoms
Aggression 0.14(0.38)a 0.21(0.51)a 1.89(0.96)b 2.18(0.74)c F(3,840)=444.83*** .614
Symptom Total 0.46(0.71)a 0.74(0.79)a 4.17(1.66)b 4.43(1.46)b F(3,840)=565.55*** .670
Comorbid Symptoms
ODD SX 0.76(1.44)a 1.83(2.30)b 3.74(3.02)c 5.46(2.43)d F(3,840)=144.40*** .340
ADHD SX 1.34(2.80)a 4.07(4.91)b 4.85(5.44)b 8.10(5.70)c F(3,840)=68.92*** .200
Teacher
Control (n=628) CU-Only (n=27) CD-Only (n=104) CD+CU (n=24) Test Statistic η p2
CD Symptoms
Aggression 0.15(0.39)a 0.26(0.56)a 1.97(0.94)b 2.10(0.64)b F(3,777)=406.43*** .611
Symptom Total 0.49(0.72)a 0.72(0.79)a 4.20(1.63)b 4.45(1.53)b F(3,777)=508.59*** .663
Comorbid Symptoms
ODD SX 0.75(1.43)a 2.07(2.29)b 4.17(3.06)c 5.20(2.45)d F(3,777)=136.26*** .345
ADHD SX 1.41(2.85)a 4.91(5.05)b 5.19(5.58)b 9.08(5.60)c F(3,777)=65.01*** .201
Parent
Control (n=694) CU-Only (n=13) CD-Only (n=123) CD+CU (n=14) Test Statistic η p2
CD Symptoms
Aggression 0.14(0.39)a 0.21(0.58)a 1.94(0.97)b 2.32(1.08)c F(3,838)=442.01*** .613
Symptom Total 0.47(0.71)a 1.04(0.88)b 4.16(1.67)c 4.96(2.29)d F(3,838)=571.83*** .672
Comorbid Symptoms
ODD SX 0.78(1.47)a 2.83(3.01)b 4.07(2.98)c 5.62(2.10)d F(3,838)=137.52*** .330
ADHD SX 1.47(3.07)a 3.03(3.75)a 5.54(5.74)b 7.64(5.18)c F(3,838)=53.42*** .161
***

p<001

Participants who only had teacher report were excluded from these analyses, as gender and race were only collected in the parent report; Means reported are least squares means adjusted for the covariates. Means with different superscripts differ significantly in pairwise comparisons.

ODD SX = Oppositional Defiant Disorder Symptom Total; ADHD SX=Attention Deficit Hyperactivity Disorder Symptom Total; CD=Conduct Disorder; CU=Callous-Unemotional.