Evidence map›Paper›PMID 35220331›Full record

ArticleJournal of addiction medicine

Assessment of Kratom Use Disorder and Withdrawal Among an Online Convenience Sample of US Adults.

Kirsten E Smith, Kelly E Dunn, Jeffrey M Rogers, Albert Garcia-Romeu, Justin C Strickland, David H Epstein

Abstract read
In one paragraph

Article in Journal of addiction medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

  1. Kratom (Molecules (Basel, Switzerland) · 2026
    Article
  2. Managing 7-Hydroxymitragynine Use Disorder with Buprenorphine-Naloxone.Hawai'i journal of health & social welfare · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kirsten E SmithFrom the Real-world Assessment, Prediction, and Treatment Unit, National Institute on Drug Abuse Intramural Research Program, Baltimore, MD (KES, JMR, DHE); and Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD (KED, AGR, JCS).
Kelly E Dunn
Jeffrey M Rogers
Albert Garcia-Romeu
Justin C Strickland
David H Epstein

Funding

Real-Time Assessment of Drug Use, Along with Mental States and EnvironmentsZIADA000499 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI EPSTEIN, DAVID · 2009 to 2025
$19.9M
HUMAN BEHAVIORAL PHARMACOLOGY OF SUBSTANCE ABUSET32DA007209 · NIDA · JOHNS HOPKINS UNIVERSITY · PI Eric C. Strain, Elise M Weerts · 1985 to 2026
$12.9M
Intramural NIH HHS Z99 DA999999NIDA NIH HHS T32 DA007209
6 · The paper itself

Abstract

introductionSince 2007, kratom use in the United States has increased, centered around nonmedical self-treatment of pain, psychiatric, and substance use disorder symptoms. Reports of kratom withdrawal have emerged amidst description of therapeutic effects, yet we know little about disordered use. Our objective was to assess Diagnostic and Statistical Manual-5 substance use disorder for kratom ("kratom use disorder," KUD) and examine kratom withdrawal symptoms among those who ever used regularly. We also sought to identify clinical characteristics of respondents who qualified for current, remitted, or never KUD.

methodsBetween April and May 2021, we re-recruited online respondents who reported lifetime kratom use on an unrelated survey into our cross-sectional kratom survey study, permitting a diverse sample of current and former kratom-using persons.

resultsA total of 129/289 (44.6%) evaluable surveys were obtained. Over half (52.7%) of respondents never met KUD diagnostic criteria; 17.8% were assessed remitted, and 29.5% met current (past-year) KUD threshold. For past-year KUD, severity was: 14.0% mild, 7.0% moderate, and 8.5% severe. Pain, psychiatric symptoms, and polydrug use were found across all groups. KUD symptoms reflected increased use, tolerance, withdrawal, unsuccessful quit attempts, and craving; 9.3% reported decreases in important social, occupational, or recreational activities because of use. Withdrawal symptoms were moderate and included gastrointestinal upset, restlessness, anxiety, irritability, fatigue/low energy, and craving.

conclusionsAs assessed here, tolerance and withdrawal are primary KUD features rather than psychosocial impairments. As kratomis often used among persons with a myriad of health conditions, clinicians should be aware of and assess for kratom use and withdrawal.

Indexed as

MitragynaSubstance-Related DisordersSubstance Withdrawal SyndromeAdultCross-Sectional StudiesHumansPainUnited States

Identifiers

PMID35220331
PMCPMC9402806

What OpenQuestion holds

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Registered trials

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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.