Accounting for the association between childhood maltreatment and alcohol-use disorders in males: a twin study.
- Authors
- Young-Wolff, K C; Kendler, K S; Ericson, M L; Prescott, C A
- Year
- 2011
- Journal
- Psychological medicine
- PMID
- 20346194
- DOI
- 10.1017/S0033291710000425
- PMCID
- PMC3010204
BACKGROUND: An association between childhood maltreatment and subsequent alcohol abuse and/or dependence (AAD) has been found in multiple studies of females. Less is known about the association between childhood maltreatment and AAD among males, and the mechanisms that underlie this association in either gender. One explanation is that childhood maltreatment increases risk for AAD. An alternative explanation is that the same genetic or environmental factors that increase a child's risk for being maltreated also contribute to risk for AAD in adulthood. METHOD: Lifetime diagnosis of AAD was assessed using structured clinical interviews in a sample of 3527 male participants aged 19-56 years from the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders. The sources of childhood maltreatment-AAD association were estimated using both a matched case-control analysis of twin pairs discordant for childhood maltreatment and bivariate twin modeling. RESULTS: Approximately 9% of participants reported childhood maltreatment, defined as serious neglect, molestation, or physical abuse occurring before the age of 15 years. Those who experienced childhood maltreatment were 1.74 times as likely to meet AAD criteria compared with males who did not experience childhood maltreatment. The childhood maltreatment-AAD association largely reflected environmental factors in common to members of twin pairs. Additional exploratory analyses provided evidence that AAD risk associated with childhood maltreatment was significantly attenuated after adjusting for measured family-level risk factors. CONCLUSIONS: Males who experienced childhood maltreatment had an increased risk for AAD. Our results suggest that the childhood maltreatment-AAD association is attributable to broader environmental adversity shared between twins.
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| 40 | Discussion β Limitations | We did not have data to test whether participants with alcoholism had worse memories than thoseβ¦ |
| 41 | Discussion β Limitations | The model results rely on the assumptions made in twin studies including: random mating with respectβ¦ |
| 42 | Discussion β Limitations | Finally, our sample is limited to Caucasian Virginia-born twins. While the lack of minorityβ¦ |
| 43 | Discussion β Summary and implications | Childhood maltreatment is associated with a wide range of problems that are correlated with bothβ¦ |
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