Gene-environment correlation: difficulties and a natural experiment-based strategy.

ABSTRACT:

Objectives

We explored how gene-environment correlations can result in endogenous models, how natural experiments can protect against this threat, and if unbiased estimates from natural experiments are generalizable to other contexts.

Methods

We compared a natural experiment, the College Roommate Study, which measured genes and behaviors of college students and their randomly assigned roommates in a southern public university, with observational data from the National Longitudinal Study of Adolescent Health in 2008. We predicted exposure to exercising peers using genetic markers and estimated environmental effects on alcohol consumption. A mixed-linear model estimated an alcohol consumption variance that was attributable to genetic markers and across peer environments.

Re

SUBMITTER: Wagner B 

PROVIDER: S-EPMC3778033 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature