Evidence map›Paper›PMID 40750480›Full record

ArticleThe International journal on drug policy2026

Second-wave mutual-help groups: Examining effectiveness for individuals with alcohol use disorders in the longitudinal, U.S. national PAL Study cohorts.

Sarah E Zemore, Camillia K Lui, Amy A Mericle, Libo Li, Priscilla Martinez, Christine Timko

Abstract read
In one paragraph

Article in The International journal on drug policy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

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0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Sarah E ZemoreAlcohol Research Group, Emeryville, CA, United States. Electronic address: szemore@arg.org.
Camillia K LuiAlcohol Research Group, Emeryville, CA, United States.
Amy A MericleAlcohol Research Group, Emeryville, CA, United States.
Libo LiAlcohol Research Group, Emeryville, CA, United States.
Priscilla MartinezAlcohol Research Group, Emeryville, CA, United States.
Christine TimkoStanford University School of Medicine, Stanford, CA, United States; Veterans Affairs (VA) Palo Alto Health Care System, Menlo Park, CA, United States.

Funding

TREND &STRUCTURE OF ALCOHOL DEPENDENCE--GENERAL POPULATION 1990 SURVEY DATAP50AA005595 · NIAAA · WESTERN CONSORTIUM FOR PUBLIC HEALTH · PI MULIA, NINA · 1985 to 2025
$34.1M
Recovery Definitions and Behavior Change Processes in Recovery outside of TreatmentR01AA027266 · NIAAA · UNIVERSITY OF IOWA · PI GILBERT, PAUL A., ZEMORE, SARAH E. · 2019 to 2023
$2.3M
Mutual Help Alternatives for Alcohol Problems: Benefits and Causal MechanismsR01AA027920 · NIAAA · PUBLIC HEALTH INSTITUTE · PI ZEMORE, SARAH E. · 2020 to 2023
$1.4M
HSRD VA RCS 00-001NIAAA NIH HHS P50 AA005595NIAAA NIH HHS R01 AA027266NIAAA NIH HHS R01 AA027920
6 · The paper itself

Abstract

backgroundSecond-wave mutual-help groups (MHGs) for addiction (e.g., SMART Recovery) are prevalent and promising, but limited studies have examined their effectiveness. We examined 1) the comparative effectiveness of second-wave MHGs for supporting alcohol use disorder recovery and 2) correlates of MHG involvement.

methodsData were pooled from the Peer ALternatives for Addiction (PAL) Study 2015 and 2021 Cohorts (N = 1152), which recruited adults via collaboration with MHG directors and recovery-related organizations. Eligibility criteria included U.S. residence, lifetime alcohol use disorder, and past-30-day in-person/online attendance at Women for Sobriety, LifeRing, SMART, and/or a 12-step group. Surveys were administered at baseline, 6 months, and 12 months (response rates=81-88 %), and assessed MHG choice (defined using attendance), MHG involvement (5-item scale; e.g., regular/home group, volunteering/service) and alcohol outcomes (below).

resultsIn lagged, multivariate generalized estimating equations, greater MHG involvement strongly predicted higher odds of alcohol abstinence (OR=2.62, p<.001), lower odds of alcohol problems (OR=0.39, p<.01), and fewer drinking days (IRR=0.12, p<.001) at follow-ups. MHG choice was unrelated to outcomes either alone or in interaction with MHG involvement, suggesting comparable effectiveness for all second-wave MHGs (vs. 12-step). Predictors of greater MHG involvement included older age, a total abstinence (vs. other) goal, and 2015 (vs. 2021) Cohort.

conclusionsFindings suggest comparable effectiveness for the targeted second-wave alternatives (vs. 12-step) among community members attending MHGs, indicating that alcohol service providers, courts, and policymakers should consider referring to and supporting these alternatives. Still, variation in SMART's program across time and geography suggests caution in interpreting the results for SMART.

Indexed as

AlcoholismSelf-Help GroupsAdultCohort StudiesFemaleHumansLongitudinal StudiesMaleMiddle AgedTreatment OutcomeUnited StatesYoung Adult12-stepAlcohol use disorderMutual-helpRecoveryServicesSmart recoveryTreatment

Identifiers

PMID40750480
PMCPMC12334079

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.