Witness of intimate partner violence in childhood and perpetration of intimate partner violence in adulthood.
BACKGROUND
At least half a million women are victims of intimate partner violence in the United States annually, resulting in substantial harm. However, the etiology of violence to intimate partners is not well understood. Witnessing such violence in childhood has been proposed as a principal cause of adulthood perpetration, yet it remains unknown whether the association between witnessing intimate partner violence and adulthood perpetration is causal.


METHODS
We conducted a propensity-score analysis of intimate partner violence perpetration to determine whether childhood witnessing is associated with perpetration in adulthood, independent of a wide range of potential confounding variables, and therefore might be a causal factor. We used data from 14,564 U.S. men ages 20 and older from the 2004-2005 wave of the National Epidemiologic Survey on Alcohol and Related Conditions.


RESULTS
Nearly 4% of men reported violent behavior toward an intimate partner in the past year. In unadjusted models, we found a strong association between childhood witnessing of intimate partner violence and adulthood perpetration (for witnessing any intimate partner violence, risk ratio [RR] = 2.6 [95% confidence interval = 2.1-3.2]; for witnessing frequent or serious violence, 3.0 [2.3-3.9]). In propensity-score models, the association was substantially attenuated (for witnessing any intimate partner violence, adjusted RR = 1.6 [1.2-2.0]; for witnessing frequent or serious violence, 1.6 [1.2-2.3]).


CONCLUSIONS
Men who witness intimate partner violence in childhood are more likely to commit such acts in adulthood, compared with men who are otherwise similar with respect to a large range of potential confounders. Etiological models of intimate partner violence perpetration should consider a constellation of childhood factors.
Roberts
Andrea L
AL
Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA 02115, USA. aroberts@hsph.harvard.edu
Gilman
Stephen E
SE
Fitzmaurice
Garrett
G
Decker
Michele R
MR
Koenen
Karestan C
KC
D000328:Adult; D015984:Causality; D002648:Child; D017579:Domestic Violence; D005260:Female; D006801:Humans; D008297:Male; D012747:Sexual Partners
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