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.
Fig 2 Geometric mean cotinine concentrations and 95% confidence intervals before and after implementation of smoke-free legislation in Scotland by number of parental smoking figures, adjusted for age and family affluence (cotinine confirmed non-smokers)
