Skip to main content
. Author manuscript; available in PMC: 2010 May 28.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2010 Apr;49(4):321–431.

Table 1.

a. Missouri Twin Registry (MOTWIN) data: Bivariate Association with Externalizing Behavior Outcome and Reports of Child Maltreatment

N % Externalizing Outcome
(CBCL)		 % Reported for Child Maltreatment
(combined total of URM, SRM, FC)
Familial Risk
MZ cotwin w/CBCL ext≥60T 201 59.7 23.4
DZ cotwin w/CBCL ext≥60T 463 38.4 19.0
DZ cotwin w/CBCL ext<60T 2483 11.5 7.2
MZ cotwin w/CBCL ext<60T 1285 6.31 7.4
Race
    Non-white 347 17.9 20.5
    White 4085 14.7 8.3
Gender
    Female 1725 13.7 10.0
    Male 2707 15.8 9.0
Census Tract Income
    Below federal poverty level 250 24.8 18.4
    Above federal poverty level 4182 14.41 8.7
RPS2
    No Child Welfare contact 4082 13.69
    RPS 67 19.40
Child Maltreatment
    No report 3956 12.9
    URM 283 32.5
    RM/FC 126 40.51
b. Collaborative Study on the Genetics of Alcoholism (COGA) data: Bivariate Association with Conduct Problem Outcome and Reports of Child Maltreatment
N % with Conduct
Problem Outcome		 % Reported for Child Maltreatment
(combined total of URM, SRM, FC)
Familial Liability
  2nd deg.rel. antisocial disorder 148 15.5 8.1
  1st deg.rel. antisocial disorder 280 28.23 22.6
Race
    Non-white 114 35.1 37.7
    White 314 19.73 10.2
Gender
    Female 202 24.3 14.4
    Male 226 23.4 20.4
Income
    Below federal poverty level 92 30.4 56.6
    Above federal poverty level 336 22.0 6.9
RPS2
    No Child Welfare contact 345 20.8
    RPS 8 37.5
Child Maltreatment
    No report 353 21.2
    URM 39 25.6
    SRM/FC 36 47.23
1

= Mantel Haenzel chi-square <.0001

2

RPS =referral for preventive services to the Missouri Department of Social Services. These referrals are for risk factors other than abuse or neglect. This row does not equal full sample because child welfare contact for maltreatment was excluded from the counts. Because of low frequency, RPS cases were deleted prior to multivariate analyses of COGA data.

3

Mantel-Haenzel chi-square <.005

Foster Care (FC)

Substantiated Reports of Maltreatment (SRM)

Unsubstantiated Reports of Maltreatment (URM)

Referrals for Preventive Services (RPS)

CBCL = Child Behavior Checklist

MZ = Monozygotic

DZ = Dizygotic