Network support as a prognostic indicator of drinking outcomes: the COMBINE Study

Area of Science:

• Psychiatry
• Psychology
• Social Sciences

Background:

• Social networks significantly influence patient drinking behaviors.
• The Important People and Activities (IPA) instrument was initially developed to assess this relationship.
• Modification of the IPA led to the Important People Inventory (IPI) for the COMBINE study.

Purpose of the Study:

• To describe the Important People Inventory (IPI) and its distinctions from the IPA.
• To evaluate the predictive relationship between network support, as measured by the IPI, and patient drinking during and after treatment.

Main Methods:

• The study involved 1,373 alcohol-dependent patients in the COMBINE randomized clinical trial.
• The IPI was administered to patients prior to the commencement of outpatient treatment.
• Six distinct network constructs were analyzed for their predictive power on patient drinking behaviors.

Main Results:

• Alcohol-specific support, including network drinking and opposition to patient drinking, predicted abstinent days and reduced heavy drinking days post-treatment.
• Other network support measures showed varied predictive relationships with drinking, with some becoming more significant over time.

Conclusions:

• The IPI is a valuable tool for assessing social network support in patients with alcohol-use disorder entering treatment.
• Alcohol-specific support measures are prognostic indicators of drinking outcomes.
• Systematic assessment of patient network support is recommended for personalized treatment planning.