Associate Professors Devon Noonan and Susan Silva and Cherie Conley, '20 PhD graduate, co-authored "Feasibility of a text-based reduction intervention in helping rural and underserved smokeless tobacco users quit" for Addictive Behaviors. The other authors include Laura Fish and Kathryn Pollak with the Duke Cancer Institute and School of Medicine, Kellen Peter with the Duke Office of Clinical Research, Leigh Ann Simmons with the University of California, Davis and former DUSON faculty member, and Herbert Severson with the Oregon Research Institute. 

Abstract

Introduction

Smokeless tobacco (ST) use significantly affects morbidity and mortality and remains disproportionally prevalent in rural and medically underserved communities. Few programs exist for rural smokeless tobacco users. Text-based interventions may increase the reach of cessation interventions; yet, none has tested them in ST users. We evaluated the feasibility, acceptability, and preliminary efficacy of a text-based Scheduled Gradual Reduction (SGR) intervention in rural and underserved ST users.

Methods

ST users were randomized in 2:1 fashion to the SGR group (N = 65), a text-based reduction program plus text-based support counseling messages or text-based support messages only group (N = 33). We surveyed participants at 30-days post intervention initiation to assess feasibility and acceptability and examined self-report 7-day point prevalence cessation at 30-days and 6-months post intervention initiation in the two arms.

Results

We achieved benchmarks for feasibility and acceptability. Among the SGR participants 51% (n = 48) reported that intervention was useful in helping them quit, 83% (n = 48) indicated that they would recommend the intervention to a friend. Over 95% (n = 39) of SGR participants said that they read all alert texts. The SGR participants had a higher quit rate at 30-days compared to support messages alone (SGR = 21.5%, Control = 9.1%, p = 0.1627, Cohen’s d equivalent = 0.56, medium effect). However, the quit rate at 6-months was 21% (p = 0.9703) for both groups.

Conclusions

A text-based intervention was feasible and acceptable among underserved ST users. SGR helped promote short-term cessation. The text-based interventions both had long-term efficacy. Given that text-based interventions have the potential to increase reach in underserved ST users, further testing is warranted.