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Tests of the effects of adolescent early alcohol exposures on adult outcomes.


ABSTRACT: To determine whether early adolescent alcohol use contributes to adult alcohol use, misuse and other adult substance-related and social outcomes.In a longitudinal study of twins assessed at target ages 11, 14 and 24 years, two techniques adjusted for confounding factors: a propensity score (PS) adjusting for the effects of measured background covariates and co-twin control (CTC) adjusting for confounding by unmeasured (including genetic) factors shared within early alcohol exposure-discordant pairs.The community-based Minnesota Twin Family Study.A total of 1512 (50.3% female) twins.Early adolescent alcohol exposures, adult substance-related and social outcomes and background variables reflecting behavioral, familial and environmental characteristics.Background covariates unbalanced between those with and without early alcohol exposure were balanced through PS-based weighting, leaving several adult outcomes related to substance use or social functioning remaining significantly associated with early alcohol exposure. Similarly, the within-pair individual-level component of a CTC indicated that early alcohol-exposed twins had higher risk than their non-exposed co-twins for several, but not all, of the same adult outcomes. For example, early alcohol use was associated with an adult index of alcohol use in both PS-weighted (??=?0.57, P?

SUBMITTER: Irons DE 

PROVIDER: S-EPMC4459504 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature

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Tests of the effects of adolescent early alcohol exposures on adult outcomes.

Irons Daniel E DE   Iacono William G WG   McGue Matt M  

Addiction (Abingdon, England) 20141027 2


<h4>Aims</h4>To determine whether early adolescent alcohol use contributes to adult alcohol use, misuse and other adult substance-related and social outcomes.<h4>Design</h4>In a longitudinal study of twins assessed at target ages 11, 14 and 24 years, two techniques adjusted for confounding factors: a propensity score (PS) adjusting for the effects of measured background covariates and co-twin control (CTC) adjusting for confounding by unmeasured (including genetic) factors shared within early al  ...[more]

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