Evidence map›Paper›PMID 33730878›Full record

ArticlePsychiatric services (Washington, D.C.)2021

Changes in Buprenorphine Treatment After Medicaid Expansion.

Mark Olfson, Victoria Shu Zhang, Marissa King, Ramin Mojtabai

Open access · greenAbstract read
In one paragraph

Article in Psychiatric services (Washington, D.C.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
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

14 citing papers in PubMed, 21 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Mark OlfsonVagelos College of Physicians and Surgeons and Mailman School of Public Health, Columbia University, New York City (Olfson); School of Management, Yale University, New Haven, Connecticut (Zhang, King); Bloomberg School of Public Health, Johns Hopkins University, Baltimore (Mojtabai).
Victoria Shu ZhangVagelos College of Physicians and Surgeons and Mailman School of Public Health, Columbia University, New York City (Olfson); School of Management, Yale University, New Haven, Connecticut (Zhang, King); Bloomberg School of Public Health, Johns Hopkins University, Baltimore (Mojtabai).
Marissa KingVagelos College of Physicians and Surgeons and Mailman School of Public Health, Columbia University, New York City (Olfson); School of Management, Yale University, New Haven, Connecticut (Zhang, King); Bloomberg School of Public Health, Johns Hopkins University, Baltimore (Mojtabai).
Ramin MojtabaiVagelos College of Physicians and Surgeons and Mailman School of Public Health, Columbia University, New York City (Olfson); School of Management, Yale University, New Haven, Connecticut (Zhang, King); Bloomberg School of Public Health, Johns Hopkins University, Baltimore (Mojtabai).
Johns Hopkins University · US

Funding

Health Care Policy and Substance Abuse Treatment AccessR01DA039137 · NIDA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MOJTABAI, RAMIN, OLFSON, MARK · 2017 to 2022
$1.9M
Social Networks, Physician Characteristics, and Inappropriate Prescribing of Commonly Misused Prescription DrugsR01DA044981 · NIDA · YALE UNIVERSITY · PI KING, MARISSA D · 2018 to 2020
$1.3M
NIDA NIH HHS R01 DA039137NIDA NIH HHS R01 DA044981
6 · The paper itself

Abstract

objectiveThe authors examined changes in buprenorphine treatment following Medicaid expansion, including the contribution of Medicaid-financed prescriptions.

methodsBuprenorphine pharmacy claims for patients were identified in the 2012-2018 IQVIA Longitudinal Prescription Data (LRx) data set, including 79.8% of U.S. retail prescriptions in 2012, increasing to 92.0% in 2018. A cohort analysis was used to assess the mean number of patients in a yearly quarter filling one or more buprenorphine prescriptions during preexpansion (2012-2013) and postexpansion (2014-2018) periods in expansion and nonexpansion states. Interrupted time-series analysis estimated associations of Medicaid expansion period with change in Medicaid-financed treatment. Separate analyses evaluated changes in duration and dose of new treatment episodes focused on mean quarterly number of patients treated with buprenorphine and proportions of new treatment episodes ≥180 days long and with ≥16 mg/day.

resultsBetween preexpansion and postexpansion, the mean quarterly number of patients taking buprenorphine increased by 93,300 in expansion states and by 84,960 in nonexpansion states. Corresponding changes for Medicaid-financed patients were 28,760 and 4,050, respectively. The fastest growth in Medicaid-financed treatment occurred among patients ages 25-44. Among new Medicaid-financed treatment episodes, little change was found in the proportion reaching the 180-day threshold, and declines were observed in the proportion receiving ≥16 mg/day.

conclusionsThe findings are consistent with previous research indicating that Medicaid expansion has increased Medicaid-financed buprenorphine treatment. However, because of offsetting changes in other payment groups, the overall increase in expansion states was similar to the increase in nonexpansion states.

Indexed as

BuprenorphinePharmaciesAdultCohort StudiesHumansMedicaidPatient Protection and Affordable Care ActPrescriptionsUnited StatesBuprenorphineBuprenorphineDrug abuseHealth care reformOpioid use disorder

Identifiers

PMID33730878
PMCPMC9097622
OpenAlexW3137861665

What OpenQuestion holds

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Registered trials

None linked

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.