Abstract
INTRODUCTION: Although attending substance use-focused mutual-help meetings online may reduce attendance barriers, associations of attendance mode with group participation and outcomes are unknown. Using longitudinal data from mutual-help group attendees, this study, after identifying differences in baseline characteristics by attendance mode, examined associations of attendance mode with mutual-help participation (number of meetings attended, involvement) and outcomes (alcohol abstinence, heavy drinking, alcohol problems). METHODS: The Peer Alternatives for Addiction Study 2021 Cohort sampled attendees of 12-step groups (e.g., Alcoholics Anonymous), Women for Sobriety, LifeRing Secular Recovery, and/or SMART Recovery in-person and/or online within 30 days before baseline. The baseline sample, recruited in fall 2021, was 531 adults with lifetime alcohol use disorder, followed at 6 (88 %) and 12 months (85 %). Differences in baseline characteristics by attendance mode were tested using Chi-squares and ANOVAs. GEE models examined associations of attendance mode, time, and their interactions with mutual-help group participation and alcohol outcomes. The in-person only mode was compared to the online-only, and to the in-person plus online, modes. RESULTS: At baseline, 53.7 % of participants had attended only online meetings in the past 30 days, 33.7 % had attended both in-person and online meetings, and 12.6 % had attended only in-person meetings. Online meeting attendees were less likely to endorse lifetime abstinence as an alcohol recovery goal than in-person-only meeting attendees. In adjusted models (including for recovery goal), those attending online meetings only, or both online and in-person meetings, attended a greater number of meetings compared to those attending only in-person meetings. However, online-only attendance was associated with less involvement than in-person-only attendance. In adjusted models, compared to baseline, involvement increased and outcomes improved at follow-ups. Adjusted models examining alcohol outcomes found that no attendance at mutual-help groups at follow-ups was associated with more heavy drinking compared to in-person-only attendance. CONCLUSIONS: Findings inform efforts to ascertain benefits of mutual-help group participation by suggesting that online attendance is associated with attending more meetings, less involvement, and lower endorsement of abstinence as a recovery goal, and is comparable to in-person attendance on alcohol outcomes. In-person attendance may be more beneficial for less heavy drinking than terminating attendance.