Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Association of nicotine dependence with rs16969968 genotype (G>A), haplotypes, and diplotypes comprised of: rs16969968 (G>A), rs880395 (G>A), and rs1948 (G>A), reported as odds ratio with 95% confidence intervals. Significance levels denoted by p * < 0.05, ** <0.01. Frequency of each group is indicated on far left (% rounded to nearest integer).
