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2 Smoking Cessation Sites: Abstinence Rates Similar

Addiction; ePub 2017 Dec 13; Bricker, et al

WebQuit.org and Smokefree.gov had similar 30-day point prevalence abstinence rates at 12 months that were descriptively higher than those of prior published website-delivered interventions and telephone counselor-delivered interventions, a recent study found. Researchers conducted a 2-arm, stratified, double-blind, individually randomized trial (n=1,319 for WebQuit; n=1,318 for Smokefree.gov) with a 12-month follow-up. Participants consisted of adults who currently smoked at least 5 cigarettes per day, recruited from March 2014 to August 2015 (mean [SD] age at baseline, 46.2 [13.4]; 79% women, and 73% white). They found:

  • The 12-month follow-up data retention rate was 88% (2,309/2,637).
  • The 30-day point prevalence abstinence rates at the 12-month follow-up were 24% (278/1,141) for WebQuit.org and 26% (305/1,168) for Smokefree.gov in the a priori complete case analysis.
  • Abstinence rates were 21% (278/1,319) for WebQuit.org and 23% (305/1,318) for Smokefree.gov when missing cases were imputed as smokers.
  • The Bayes Factor comparing the primary abstinence outcome was 0.17, indicating “substantial” evidence of no difference between groups.
Citation:

Bricker JB, Mull KE, McClure JB, Watson NL, Heffner JL. Improving quit rates of web-delivered interventions for smoking cessation: Full scale randomized trial of WebQuit.org versus Smokefree.gov. [Published online ahead of print December 13, 2017]. Addiction. doi:10.1111/add.14127.

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