Ontology highlight
ABSTRACT:
SUBMITTER: Huggett SB
PROVIDER: S-EPMC5851595 | biostudies-literature | 2018 Mar
REPOSITORIES: biostudies-literature
Behavior genetics 20180209 2
We investigated the etiological role of genetic and environmental influences for two milestones of tobacco and alcohol use: age of initiation, and speed of progression to dependence (latency). Study participants included 1352 monozygotic and 1422 dizygotic twins (mean age at assessment = 24.31). Earlier ages of initiation significantly increased the likelihood of developing dependence, but were associated with longer dependence latencies for tobacco and alcohol. Latencies to dependence were heri ...[more]