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.
Money spent per week on cigarettes during e-cigarette use was significantly lower than at baseline, and remained significantly lower at one-month follow-up. * indicates p < 0.0001 vs. baseline, ‡ indicates p < 0.05 vs week 1, † indicates p < 0.005 vs. follow-up. f/u = follow-up
