Changes in cigarette consumption and drinking outcomes: findings from Project MATCH

Area of Science:

• Addiction Medicine
• Psychiatry
• Public Health

Background:

• Individuals with alcohol use disorders (AUD) exhibit higher smoking rates than the general population.
• Most patients continue smoking post-treatment, despite smoking cessation improving alcoholism outcomes.
• Existing research often categorizes patients as smokers or non-smokers, potentially missing nuances in smoking reduction's impact.

Purpose of the Study:

• To investigate the association between changes in cigarette consumption and alcohol use outcomes.
• To analyze data from Project MATCH to understand the relationship between smoking and drinking behaviors.

Main Methods:

• Utilized Project MATCH data, a large clinical trial for alcohol use disorders.
• Categorized smokers into three groups based on cigarette consumption changes (decreased, increased, or constant) from baseline to 15-month follow-up.

Main Results:

• Smokers who decreased their cigarette consumption showed significantly lower rates of alcohol relapse.
• Conversely, those whose cigarette consumption increased or remained constant experienced higher relapse rates.
• A reduction in smoking was statistically associated with improved alcohol use outcomes.

Conclusions:

• Decreasing tobacco use, even without complete cessation, is linked to better outcomes in alcoholism treatment.
• Findings suggest that interventions encouraging smoking reduction may benefit patients with alcohol use disorders.
• This highlights the importance of considering smoking reduction as a relevant factor in AUD recovery.