Overlapping genetic and environmental influences among men's alcohol consumption and problems, romantic quality and social support.

ABSTRACT:

Background

Alcohol consumption and problems are associated with interpersonal difficulties. We used a twin design to assess in men the degree to which genetic or environmental influences contributed to the covariance between alcohol consumption and problems, romantic quality and social support.

Method

The sample included adult male-male twin pairs (697 monozygotic and 487 dizygotic) for whom there were interview-based data on: alcohol consumption (average monthly alcohol consumption in the past year); alcohol problems (lifetime alcohol dependence symptoms); romantic conflict and warmth; friend problems and support; and relative problems and support.

Results

Key findings were that genetic and unique environmental factors contributed to the covariance between alcohol co

SUBMITTER: Salvatore JE 

PROVIDER: S-EPMC4499011 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature