nicotine risk_factor_for tobacco dependence
Evidence from:
primary |
all sources
Evidence (2 sources)
Nicotine ... makes smoking ... more attractive and powerfully reinforcing
confidence: 0.90
Genome-wide and candidate gene association study of cigarette smoking behaviors.
(2009)
PMID:19247474
cited
dependence on nicotine ... induces most people who start smoking to continue to smoke
confidence: 0.95