Figure 1.
Odds ratios for different amounts of smoking (pack-years) in combination with none (No SE), one (Single SE) or two (Double SE) copies of SE alleles. The reference group being none smokers without SE alleles.
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.