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Arch Gen Psychiatry. 2001 Apr;58(4):389-94.

Parental and early childhood predictors of persistent physical aggression in boys from kindergarten to high school.

Author information

1
2105 Hamburg Hall, Carnegie Mellon University, Pittsburgh, PA 15213, USA. dn03@andrew.cmu.edu

Abstract

BACKGROUND:

In a prior study, we identified 4 groups following distinct developmental courses, or trajectories, of physical aggression in 1037 boys from 6 to 15 years of age in a high-risk population sample from Montréal, Québec. Two were trajectories of high aggression, a persistently high group and a high but declining group. The other 2 trajectories were a low group and a moderate declining group. This study identified early predictors of physical aggression trajectories from ages 6 to 15 years.

METHODS:

In this study, logistic regression analysis was used to identify parental and child characteristics that distinguished trajectory group membership.

RESULTS:

For boys displaying high hyperactivity and high opposition in kindergarten, the odds of membership in the 2 high aggression groups were increased by factors of 3.0 (95% confidence interval [CI], 2.0-4.3) and 2.7 (95% CI, 1.9-3.8), respectively, compared with boys without these risks. Counterpart odds ratios for the risk factors of mothers' teen-onset of parenthood and low educational attainment were 1.6 (95% CI, 1.1-2.2) and 1.8 (95% CI, 1.3-2.4), respectively. Only the maternal characteristics distinguished between the trajectory of persistently physical high aggression and the trajectory starting high but subsequently declining. For the 2 maternal risk factors combined, the odds ratio of persisting in high level physical aggression was 9.4 (95% CI, 2.9-30.4).

CONCLUSIONS:

Kindergarten boys displaying high levels of opposition and hyperactivity are at high risk of persistent physical aggression. However, among kindergarten boys who display high levels of physical aggression, only mothers' low educational level and teenage onset of childbearing distinguish those who persist in high levels of physical aggression.

PMID:
11296100
DOI:
10.1001/archpsyc.58.4.389
[Indexed for MEDLINE]

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