UCSF

Purpose

To evaluate the impact of a Social Branding intervention in bars and nightclubs on smoking behavior.

Design

Quasi-experimental controlled study.

Setting

Bars and nightclubs in San Diego and San Francisco (intervention) and Los Angeles (control).

Participants

"Hipster" young adults (age 18-26) attending bars and nightclubs.

Intervention

Anti-tobacco messages delivered through monthly anti-tobacco music/social events, opinion leaders, original art, direct mail, promotional activities, and online media.

Measures

A total of 7240 surveys were collected in 3 cities using randomized time location sampling at baseline (2012-2013) and follow-up (2015-2016); data were analyzed in 2018. The primary outcome was current smoking.

Analysis

Multivariable logistic regression assessed correlates of smoking, adjusting for covariates including electronic cigarette use; differences between cities were evaluated using location-by-time interactions.

Results

Smoking in San Francisco decreased at a significantly faster rate (51.1%-44.1%) than Los Angeles (45.2%-44.5%) (P = .034). Smoking in San Diego (mean: 39.6%) was significantly lower than Los Angeles (44.8%, P < .001) at both time points with no difference in rate of change. Brand recall was not associated with smoking behavior, but recall was associated with anti-tobacco attitudes that were associated with smoking.

Conclusion

This is the first controlled study of Social Branding interventions. Intervention implementation was accompanied by decreases in smoking (San Francisco) and sustained lower smoking (San Diego) among young adult bar patrons over 3 years.