Pretreatment changes in drinking: relationship to treatment outcomes

Area of Science:

• Behavioral Science
• Clinical Psychology
• Addiction Research

Background:

• Traditional models assume most behavior change in alcohol dependence treatment occurs post-entry.
• Understanding pretreatment changes in alcohol use is crucial for refining treatment efficacy.
• Cognitive-behavioral treatment (CBT) is a common intervention for alcohol dependence.

Purpose of the Study:

• To investigate alcohol use changes occurring in the pretreatment phase.
• To identify distinct patterns of pretreatment change in individuals with alcohol dependence.
• To examine the relationship between pretreatment change patterns and posttreatment outcomes.

Main Methods:

• Recruited 45 participants for a clinical trial on alcohol dependence.
• Analyzed drinking data (percent days abstinent, drinks per drinking day) across pretreatment intervals.
• Utilized multilevel growth curve modeling and repeated-measures ANOVAs.

Main Results:

• Significant increases in abstinence and decreases in drinks per drinking day were observed during pretreatment.
• The majority of drinking behavior change occurred between the initial phone call and baseline assessment.
• Two patterns emerged: rapid changers (maintained changes) and gradual changers (changed slowly during treatment).

Conclusions:

• Pretreatment changes in alcohol use are substantial and warrant systematic investigation.
• Rapid pretreatment changers demonstrated superior 90-day posttreatment outcomes compared to gradual changers.
• Findings suggest potential for tailoring treatment based on individual pretreatment change trajectories.