Disparities in Access to Medications for Opioid Use Disorder in the Veterans Health Administration

Are gaps in rates of retention on buprenorphine for treatment of opioid use disorder closing among veterans across different races and ethnicities? A retrospective cohort study

INTRODUCTION

The U.S. Veterans Health Administration has undertaken several initiatives to improve veterans' access to and retention on buprenorphine because it prevents overdose and reduces drug-related morbidity. We aimed to determine whether improvements in retention duration over time was equitable across veterans of different races and ethnicities.

METHODS

This retrospective cohort study was conducted among veterans who initiated buprenorphine from federal fiscal years (FY) 2006 to 2020 after diagnosis of opioid use disorder. Using an accelerated failure time model, we estimated the association between time to buprenorphine discontinuation and FY of initiation, race and ethnicity, and other control covariates. We followed veterans from buprenorphine initiation until they discontinued or had a censoring event. We then estimated the predicted median days retained on buprenorphine, the average marginal effect of initiating in a later FY, the same measure by race and ethnicity, the incremental effect of the various racial and ethnic identities in contrast to non-Hispanic White, and the total change in the size of the gap over the 15 years of the study between veterans with a minoritized racial or ethnic identity compared to non-Hispanic White veterans.

RESULTS

Most of the 31,797 veterans in the sample were non-Hispanic White (74.5 %), from urban areas (83.5 %), male (92.0 %), and had significant comorbidities, most frequently anxiety disorders (51.0 %) and depression (63.0 %). Overall, 49.8 % of veterans were retained at least 180 days. The average marginal effect of FY was 7.0 days [95%CI:5.3, 8.8] but was significantly smaller among veterans identifying as Black or African American [3.2 days; 95%CI:2.4, 4.1] or Asian [3.6 days; 95%CI:1.6, 5.7] compared to veterans who identify as non-Hispanic White [7.9 days; 95%CI:5.9, 9.9]. Additional measures of change were significant for veterans identifying as Hispanic White or with two or more races.

CONCLUSION

Although buprenorphine retention in OUD treatment improved for all veterans over the 15-year study period, veterans from most minoritized racial and ethnic groups fell further behind as gains in duration on therapy accrued primarily to non-Hispanic White veterans. Targeted interventions addressing specific challenges experienced by veterans with minoritized identities are needed to close gaps in retention on buprenorphine.

Medications for opioid use disorder: Predictors of early discontinuation and reduction of overdose risk in US military veterans by medication type

AIM

This study: (1) estimated the effect of early discontinuation of medication for opioid use disorder (MOUD) on overdose probability and (2) measured the relationship between patient characteristics and early discontinuation probability for each MOUD type.

DESIGN, SETTING AND PARTICIPANTS

This was a retrospective cohort using electronic health record data from the US Veterans Healthcare Administration. Participants were veterans initiating MOUD with buprenorphine (BUP), methadone (MET) or extended-release naltrexone (XR-NTX) from fiscal years 2012-19. A total of 39 284 veterans met eligibility with 22 721 (57.8%) initiating BUP, 12 652 (32.2%) initiating MET and 3911 (10.0%) initiating XR-NTX.

MEASUREMENTS

Measurements (1) determined whether the veteran experienced an overdose in the 365 days after MOUD initiation (primary) and (2) early discontinuation of MOUD, defined as discontinuation before 180 days (secondary). We assumed that unobserved patient characteristics would jointly influence the probability of discontinuation and overdose. and estimated the joint distribution with a bivariate probit model.

FINDINGS

We found that 9.0% of BUP initiators who experienced an overdose above the predicted 3.9% had no veteran-discontinued BUP early; findings for XR-NTX were similar, with 12.2% of initiators overdosing above the predicted 4.5%, but this was statistically inconclusive. We found no relationship between early discontinuation and overdose for MET initiators, probably due to the high risk of both events. The patient characteristics included in our post-estimation exploratory analysis of early discontinuation varied by MOUD type, with between 14 (XR-NTX) and 25 (BUP) tested. The only characteristics with at least one level showing a statistically significant change in probability of early discontinuation for all three MOUD types were geography and prior-year exposure to psychotherapy, although direction and magnitude varied.

CONCLUSION

Early discontinuation of buprenorphine, and probably extended-release naltrexone, appears to be associated with a greater probability of experiencing a fatal or non-fatal overdose among US veterans receiving medication for opioid use disorder (MOUD); methadone does not show the same association. There is no consistent set of characteristics among early discontinuers by MOUD type.

Integrating Buprenorphine for Opioid Use Disorder into Rural, Primary Care Settings

BACKGROUND

Medications for opioid use disorder (MOUD) including buprenorphine are effective, but underutilized. Rural patients experience pronounced disparities in access. To reach rural patients, the US Department of Veterans Affairs (VA) has sought to expand buprenorphine prescribing beyond specialty settings and into primary care.

OBJECTIVE

Although challenges remain, some rural VA health care systems have begun offering opioid use disorder (OUD) treatment with buprenorphine in primary care. We conducted interviews with clinicians, leaders, and staff within these systems to understand how this outcome had been achieved.

DESIGN

Using administrative data from the VA Corporate Data Warehouse (CDW), we identified rural VA health care systems that had improved their rate of primary care-based buprenorphine prescribing over the period 2015-2020. We conducted qualitative interviews (n = 30) with staff involved in implementing or prescribing buprenorphine in these systems to understand the processes that had facilitated implementation.

PARTICIPANTS

Clinicians, staff, and leaders embedded within rural VA health care systems located in the Northwest, West, Midwest (2), South, and Northeast.

APPROACH

Qualitative interviews were analyzed using a mixed inductive/deductive approach.

KEY RESULTS

Interviews revealed the processes through which buprenorphine was integrated into primary care, as well as processes insufficient to enact change. Implementation was often initially catalyzed through a targeted hire. Champions then engaged clinicians and leaders one-on-one to "pitch" the case, describe concordance between buprenorphine prescribing and existing goals, and delineate the supportive role that they could provide. Sites were prepared for implementation by developing new clinical teams and redesigning clinical processes. Each of these processes was made possible with the active, instrumental support of leadership.

CONCLUSIONS

Results suggest that rural systems seeking to improve buprenorphine accessibility in primary care may need to alter primary care structures to accommodate buprenorphine prescribing, whether through new hires, team development, or clinical redesign.

Exploring predictors of substance use disorder treatment engagement with machine learning: The impact of social determinants of health in the therapeutic landscape

BACKGROUND

Improved knowledge of factors that influence treatment engagement could help treatment providers and systems better engage patients. The present study used machine learning to explore associations between individual- and neighborhood-level factors, and SUD treatment engagement.

METHODS

This was a secondary analysis of the Global Appraisal of Individual Needs (GAIN) dataset and United States Census Bureau data utilizing random forest machine learning and generalized linear mixed modelling. Our sample (N = 15,873) included all people entering SUD treatment at GAIN sites from 2006 to 2012. Predictors included an array of demographic, psychosocial, treatment-specific, and clinical measures, as well as environment-level measures for the neighborhood in which patients received treatment.

RESULTS

Greater odds of treatment engagement were predicted by adolescent age and psychiatric comorbidity, and at the neighborhood-level, by low unemployment and high population density. Lower odds of treatment engagement were predicted by Black/African American race, and at the neighborhood-level by high rate of public assistance and high income inequality. Regardless of the degree of treatment engagement, individuals receiving treatment in areas with high unemployment, alcohol sale outlet concentration, and poverty had greater substance use and related problems at baseline. Although these differences reduced with treatment and over time, disparities remained.

CONCLUSIONS

Neighborhood-level factors appear to play an important role in SUD treatment engagement. Regardless of whether individuals engage with treatment, greater loading on social determinants of health such as unemployment, alcohol sale outlet density, and poverty in the therapeutic landscape are associated with worse SUD treatment outcomes.

Improving access to buprenorphine for rural veterans in a learning health care system

OBJECTIVE

To describe a learning health care system research process designed to increase buprenorphine prescribing for the treatment of opioid use disorder (OUD) in rural primary care settings within U.S. Department of Veterans Affairs (VA) treatment facilities.

DATA SOURCES AND STUDY SETTING

Using national administrative data from the VA Corporate Data Warehouse, we identified six rural VA health care systems that had improved their rate of buprenorphine prescribing within primary care from 2015 to 2020 (positive deviants). We conducted qualitative interviews with leaders, clinicians, and staff involved in buprenorphine prescribing within primary care from these sites to inform the design of an implementation strategy.

STUDY DESIGN

Qualitative interviews to inform implementation strategy development.

DATA COLLECTION/EXTRACTION METHODS

Interviews were audio-recorded, transcribed verbatim, and coded by a primary coder and secondary reviewer. Analysis utilized a mixed inductive/deductive approach. To develop an implementation strategy, we matched clinical needs identified within interviews with resources and strategies participants had utilized to address these needs in their own sites.

PRINCIPAL FINDINGS

Interview participants (n = 30) identified key clinical needs and strategies for implementing buprenorphine in rural, primary care settings. Common suggestions included the need for clinical mentorship or a consult service, buprenorphine training, and educational resources. Building upon interview findings and in partnership with a clinical team, we developed an implementation strategy composed of an engaging case-based training, an audit and feedback process, and educational resources (e.g., Buprenorphine Frequently Asked Questions, Rural Care Model Infographic).

CONCLUSIONS

We describe a learning health care system research process that leveraged national administrative data, health care provider interviews, and clinical partnership to develop an implementation strategy to encourage buprenorphine prescribing in rural primary care settings.

Development and validation of machine-learning algorithms predicting retention, overdoses, and all-cause mortality among US military veterans treated with buprenorphine for opioid use disorder

BACKGROUND

Buprenorphine for opioid use disorder (B-MOUD) is essential to improving patient outcomes; however, retention is essential.

OBJECTIVE

To develop and validate machine-learning algorithms predicting retention, overdoses, and all-cause mortality among US military veterans initiating B-MOUD.

METHODS

Veterans initiating B-MOUD from fiscal years 2006-2020 were identified. Veterans' B-MOUD episodes were randomly divided into training (80%;n = 45,238) and testing samples (20%;n = 11,309). Candidate algorithms [multiple logistic regression, least absolute shrinkage and selection operator regression, random forest (RF), gradient boosting machine (GBM), and deep neural network (DNN)] were used to build and validate classification models to predict six binary outcomes: 1) B-MOUD retention, 2) any overdose, 3) opioid-related overdose, 4) overdose death, 5) opioid overdose death, and 6) all-cause mortality. Model performance was assessed using standard classification statistics [e.g., area under the receiver operating characteristic curve (AUC-ROC)].

RESULTS

Episodes in the training sample were 93.0% male, 78.0% White, 72.3% unemployed, and 48.3% had a concurrent drug use disorder. The GBM model slightly outperformed others in predicting B-MOUD retention (AUC-ROC = 0.72). RF models outperformed others in predicting any overdose (AUC-ROC = 0.77) and opioid overdose (AUC-ROC = 0.77). RF and GBM outperformed other models for overdose death (AUC-ROC = 0.74 for both), and RF and DNN outperformed other models for opioid overdose death (RF AUC-ROC = 0.79; DNN AUC-ROC = 0.78). RF and GBM also outperformed other models for all-cause mortality (AUC-ROC = 0.76 for both). No single predictor accounted for >3% of the model's variance.

CONCLUSIONS

Machine-learning algorithms can accurately predict OUD-related outcomes with moderate predictive performance; however, prediction of these outcomes is driven by many characteristics.

Scoping review of military veterans involved in the criminal legal system and their health and healthcare: 5-year update and map to the Veterans-Sequential Intercept Model

BACKGROUND

A previous scoping review of legal-involved veterans' health and healthcare (1947-2017) identified studies and their limitations. Given the influx of literature published recently, this study aimed to update the previous review and map articles to the Veterans-Sequential Intercept Model (V-SIM) - a conceptual model used by key partners, including Veterans Health Administration, veteran advocates, criminal justice practitioners, and local governments to identify intercept points in the criminal legal system where resources and programming can be provided. Developing an updated resource of literature is essential to inform current research, discover gaps, and highlight areas for future research.

METHODS

A systematic search of 5 databases identified articles related to legal-involved veterans' health and healthcare published between December 2017 through December 2022. The first and senior authors conducted abstract reviews, full-text reviews, and data extraction of study characteristics. Finally, each article was sorted by the various intercept points from the V-SIM.

RESULTS

Of 903 potentially relevant articles, 107 peer-reviewed publications were included in this review, most related to mental health (66/107, 62%) and used an observational quantitative study design (95/107, 89%). Although most articles did not explicitly use the V-SIM to guide data collection, analyses, or interpretation, all could be mapped to this conceptual model. Half of the articles (54/107, 50%) collected data from intercept 5 (Community Corrections and Support Intercept) of the V-SIM. No articles gathered data from intercepts 0 (Community and Emergency Services Intercept), 1 (Law Enforcement Intercept), or 2 (Initial Detention and Court Hearings Intercept).

CONCLUSIONS

There were 107 articles published in the last five years compared to 190 articles published in 70 years covered in the last review, illustrating the growing interest in legal-involved veterans. The V-SIM is widely used by front-line providers and clinical leadership, but not by researchers to guide their work. By clearly tying their research to the V-SIM, researchers could generate results to help guide policy and practice at specific intercept points. Despite the large number of publications, research on prevention and early intervention for legal-involved veterans is lacking, indicating areas of great need for future studies.

Is there a disparity in medications for opioid use disorder based on race/ethnicity and gender? A systematic review and meta-analysis

BACKGROUND

Access to medications for opioid use disorder (MOUD) among racial/ethnic minorities is a growing concern.

OBJECTIVES

Inequalities in receiving MOUD among gender and racial/ethnic groups were examined in this systematic review.

METHODS

Studies were retrieved by searching various databases and reference lists of reviews and selected full texts. Adjusted Odds Ratios (AORs) comparing MOUDs among racial/ethnic minorities to Whites were extracted or estimated from their findings. Meta-analysis was performed using STATA 17.

RESULTS

After screening 2438 records, 19 studies were included in this review in two categories. The first category consists of 11 studies comparing receiving MOUD between different races/ethnicities and genders at the individual level. The meta-analysis regarding AORs comparing Blacks, Hispanics, Asians, Native Americans/Alaska-Natives, Hawaiians, and mixed-race patients with Whites were 0.56 (95 % CI: 0.45-0.68), 0.72 (95 % CI: 0.55-0.94), 0.85 (95 % CI: 0.72-0.99), 0.88 (95%CI: 0.73-1.04), 0.27 (95 % CI: 0.03-2.18), and 0.97 (95 % CI: 0.81-1.16), respectively. The AOR of receiving MOUD for all minorities compared to Whites was 0.70 (95 % CI: 0.61-0.80). Overall AOR comparing MOUD for females to males was 0.95 (95 % CI: 0.87-1.04). The second category of articles compared buprenorphine and methadone treatment among ethnic/racial minorities and Whites.

CONCLUSIONS

Compared to Whites, Blacks, Hispanics, and Asians have limited access to MOUD. The findings suggest that methadone is the predominant medication for racial/ethnic minorities, while Whites and high-income communities receive buprenorphine more. It is crucial to re-design policies to bridge the gap in access to MOUD.

Racial, Ethnic, and Sex Disparities in Mental Health Among US Service Members and Veterans: Findings From the Millennium Cohort Study

Although disparities in mental health occur within racially, ethnically, and sex-diverse civilian populations, it is unclear whether these disparities persist within US military populations. Using cross-sectional data from the Millennium Cohort Study (2014-2016; n = 103,184; 70.3% male; 75.7% non-Hispanic White), a series of logistic regression analyses were conducted to examine whether racial, ethnic, and/or sex disparities were found in mental health outcomes (posttraumatic stress disorder (PTSD), depression, anxiety, and problematic anger), hierarchically adjusting for sociodemographic, military, health-related, and social support factors. Compared with non-Hispanic White individuals, those who identified as American Indian/Alaska Native, non-Hispanic Black, Hispanic/Latino, or multiracial showed greater risk of PTSD, depression, anxiety, and problematic anger in unadjusted models. Racial and ethnic disparities in mental health were partially explained by health-related and social support factors. Women showed greater risk of depression and anxiety and lower risk of PTSD than men. Evidence of intersectionality emerged for problematic anger among Hispanic/Latino and Asian or Pacific Islander women. Overall, racial, ethnic, and sex disparities in mental health persisted among service members and veterans. Future research and interventions are recommended to reduce these disparities and improve the health and well-being of diverse service members and veterans.

Weight change in a national cohort of U.S. Military Veterans engaged in medication treatment for opioid use disorder

Medication treatments for opioid use disorder (MOUD) save lives and improve outcomes for countless individuals. However, data suggest the potential for significant weight gain during methadone treatment and little is known about weight change during buprenorphine treatment. Using Veteran Health Administration administrative data from fiscal year 2017 to fiscal year 2019, two cohorts were created: 1) Veterans diagnosed with opioid use disorder (OUD) taking methadone (N = 1425); and 2) Veterans diagnosed with OUD taking buprenorphine (N = 3756). Linear mixed models were used to analyze weight change during the first MOUD treatment episode in the observation period. Random slopes and intercepts were included in the model to estimate variation in BMI across individuals and time. The data revealed a slight upward trend in BMI over the course of treatment. Specifically, a daily increase of 0.004 for Veterans in methadone treatment and 0.002 for Veterans in buprenorphine treatment was observed. This translates to a gain of about 10 pounds over the course of 1 year of methadone treatment and 5 pounds for 1 year of buprenorphine treatment for a Veteran of average height and weight. The amount of weight gain in methadone treatment is significantly less than other published findings, but nonetheless indicates that assessment and discussions between patients and providers related to weight may be warranted.

Impact of an intervention to implement provision of opioid use disorder medication among patients with and without co-occurring substance use disorders

INTRODUCTION

Co-occurring substance use disorders (SUDs) are common among people with opioid use disorder (OUD) and known to hinder receipt of medications for OUD (MOUD). It is important to understand how MOUD care implemented outside of SUD specialty settings impacts access for patients with co-occurring SUDs. The Veterans Health Administration's (VA) Stepped Care for Opioid Use Disorder Train the Trainer (SCOUTT) initiative was implemented in primary care, mental health, and pain clinics in 18 VA facilities, and was found to increase MOUD receipt. This study assessed the SCOUTT initiative's impact among patients with and without co-occurring SUDs.

METHODS

This study used a controlled interrupted time series design. We extracted electronic health record data for patients with OUD with visits in SCOUTT intervention or matched comparison clinics during the post-implementation year (9/1/2018-8/31/2019). We examined the monthly proportion of patients who received MOUD in SCOUTT intervention or comparison clinics (primary care, mental health, and pain clinics), or in a VA SUD specialty clinic (where patients may have been referred), during the pre- and post-implementation years. Segmented logistic regression models estimated pre-post changes in outcomes (immediate level change from the final month of the pre-implementation period to the first month of the post-implementation period, change in trend/slope) in intervention vs. comparison facilities, adjusting for patient characteristics and pre-implementation trends. We stratified analyses by the presence of co-occurring SUDs.

RESULTS

Among patients without co-occurring SUDs, the pre-post trend/slope change in MOUD received in SCOUTT intervention or comparison clinics was greater in intervention vs. comparison facilities (adjusted odds ratio [aOR]: 1.06, 95% confidence interval [CI]: 1.02-1.10), and the immediate increase in MOUD received in SUD clinics was greater in intervention vs. comparison facilities (aOR: 1.12, 95% CI: 1.02-1.22). These changes did not significantly differ in intervention vs. comparison facilities among patients with co-occurring SUDs.

CONCLUSIONS

The SCOUTT initiative may have increased MOUD receipt primarily among patients without co-occurring SUDs. Focusing on increasing MOUD receipt for patients with co-occurring SUDs may improve the overall effectiveness of MOUD implementation efforts.

Treatment setting among individuals with opioid use and criminal legal involvement, housing instability, or Medicaid insurance, 2015-2021

Background

Individuals with criminal legal involvement (CLI), housing instability, or Medicaid insurance may experience barriers accessing substance use treatment in certain settings. Previous research has found individuals in these groups are less likely to receive medications for opioid use disorder (MOUD), but the role treatment setting may play in low rates of MOUD is unclear.

Methods

We conducted a cross-sectional study using nationally representative survey data from 2015 to 2021. We estimated the proportion of individuals who had CLI, housing instability, or Medicaid insurance who received substance use treatment in a variety of settings. We used multivariable logistic regressions to estimate the associations between group and the receipt of MOUD across treatment settings.

Results

Individuals with CLI, housing instability, or Medicaid insurance were more likely to receive substance use treatment in hospitals, rehabilitation, and mental health facilities compared with individuals not in these groups. However, all groups accessed substance use treatment in doctors' offices at similar rates. Treatment at a doctor's office was associated with the highest likelihood of receiving MOUD (aOR 4.73 [95% CI: 2.2.15-10.43]). Across multiple treatment settings, Individuals with CLI or housing instability were less likely to receive MOUD.

Conclusions

Individuals with CLI, housing instability, or Medicaid insurance are more likely to access substance use treatment at locations associated with lower rates of MOUD use. MOUD access across treatment settings is needed to improve engagement and retention in treatment for patients experiencing structural disadvantage or who have low incomes.

Inequities in the treatment of opioid use disorder: A scoping review

BACKGROUND

Given the lack of access to evidenced-based OUD treatment and the corresponding overdose crisis, researchers must evaluate and report health care inequities involving the treatment of OUD. Additionally, clinicians should be aware of these inequities in the treatment of patients.

METHODS

We carried out a scoping review of the literature regarding health inequities in treatment for OUD in July 2022. The study team retrieved articles published between 2016 and 2021 from MEDLINE and Ovid Embase. After authors received training, screening and data extraction were performed in masked, duplicate fashion. The team screened a total of 3673 titles and abstracts, followed by 172 articles for full-text review. The inequities that we examined were race/ethnicity, sex or gender, income, under-resourced/rural, occupational status, education level, and LGBTQ+. We used Stata 17.0 (StataCorp, LLC, College Station, TX) to summarize data and statistics of the studies within our sample.

RESULTS

A total of 44 studies evaluating inequities in OUD treatment met inclusion criteria. The most common inequity that studies examined was race/ethnicity (34/44 [77.27 %] studies), followed by under-resourced/rural (19/44 [43.18 %] studies), and sex or gender (18/44 [40.91 %] studies). LGBTQ+ (0/44 [0.0 %] studies) was not reported in the included studies. Our results indicate that many historically marginalized populations experience inequities related to access and outcomes in OUD treatment. The included studies in our scoping review occasionally demonstrated inconsistent findings.

CONCLUSIONS

Gaps exist within the literature on health inequities in treatment for OUD. The most examined inequities were race/ethnicity, under-resourced/rural and sex or gender, while studies did not examine LGBTQ+ status. Future research should aim to advance and supplement literature investigating health inequities in OUD treatment to ensure inclusive, patient-centered care.

Racial and ethnic disparities in emergency department-initiated buprenorphine across five health care systems

BACKGROUND

Opioid overdose deaths have disproportionately impacted Black and Hispanic populations, in part due to disparities in treatment access. Emergency departments (EDs) serve as a resource for patients with opioid use disorder (OUD), many of whom have difficulty accessing outpatient addiction programs. However, inequities in ED treatment for OUD remain poorly understood.

METHODS

This secondary analysis examined racial and ethnic differences in buprenorphine access using data from EMBED, a study of 21 EDs across five health care systems evaluating a clinical decision support system for initiating ED buprenorphine. The primary outcome was receipt of buprenorphine, ED administered or prescribed. Hospital type (academic vs. community) was evaluated as an effect modifier. Hierarchical models with cluster effects for site and clinician were used to assess buprenorphine receipt by race and ethnicity.

RESULTS

Black patients were less likely to receive buprenorphine (6.4% [51/801] vs. White patients 8.5% [268/3154], odds ratio [OR] 0.59, 95% confidence interval [CI] 0.45-0.78). This association persisted after adjusting for age, insurance, gender, clinician X-waiver, hospital type, and urbanicity (adjusted OR [aOR] 0.64, 95% CI 0.48-0.84) but not when discharge diagnosis was included (aOR 0.75, 95% CI 0.56-1.02). Hispanic patients were more likely to receive buprenorphine (14.8% [122/822] vs. non-Hispanic patients, 11.6% [475/4098]) in unadjusted (OR 1.57, 95% CI 1.09-1.83) and adjusted models (aOR 1.41, 95% CI 1.08-1.83) but not including discharge diagnosis (aOR 1.32, 95% CI 0.99-1.77). Odds of buprenorphine were similar in academic and community EDs by race (interaction p = 0.97) and ethnicity (interaction p = 0.64).

CONCLUSIONS

Black patients with OUD were less likely to receive buprenorphine whereas Hispanic patients were more likely to receive buprenorphine in academic and community EDs. Differences were attenuated with discharge diagnosis, as fewer Black and non-Hispanic patients were diagnosed with opioid withdrawal. Barriers to medication treatment are heterogenous among patients with OUD; research must continue to address the multiple drivers of health inequities at the patient, clinician, and community level.

Racial Inequality in Receipt of Medications for Opioid Use Disorder

BACKGROUND

Since 2010, Black persons in the United States have had a greater increase in opioid overdose-related mortality than other groups, but national-level evidence characterizing racial and ethnic disparities in the use of medications for opioid use disorder (OUD) is limited.

METHODS

We used Medicare claims data from the 2016-2019 period for a random 40% sample of fee-for-service beneficiaries who were Black, Hispanic, or White; were eligible for Medicare owing to disability; and had an index event related to OUD (nonfatal overdose treated in an emergency department or inpatient setting, hospitalization with injection drug use-related infection, or inpatient or residential rehabilitation or detoxification care). We measured the receipt of medications to treat OUD (buprenorphine, naltrexone, and naloxone), the receipt of high-risk medications (opioid analgesics and benzodiazepines), and health care utilization, all in the 180 days after the index event. We estimated differences in outcomes according to race and ethnic group with adjustment for beneficiary age, sex, index event, count of chronic coexisting conditions, and state of residence.

RESULTS

We identified 25,904 OUD-related index events among 23,370 beneficiaries, with 3937 events (15.2%) occurring among Black patients, 2105 (8.1%) among Hispanic patients, and 19,862 (76.7%) among White patients. In the 180 days after the index event, patients received buprenorphine after 12.7% of events among Black patients, after 18.7% of those among Hispanic patients, and after 23.3% of those among White patients; patients received naloxone after 14.4%, 20.7%, and 22.9%, respectively; and patients received benzodiazepines after 23.4%, 29.6%, and 37.1%, respectively. Racial differences in the receipt of medications to treat OUD did not change appreciably from 2016 to 2019 (buprenorphine receipt: after 9.1% of index events among Black patients vs. 21.6% of those among White patients in 2016, and after 14.1% vs. 25.5% in 2019). In all study groups, patients had multiple ambulatory visits in the 180 days after the index event (mean number of visits, 6.6 after events among Black patients, 6.7 after events among Hispanic patients, and 7.6 after events among White patients).

CONCLUSIONS

Racial and ethnic differences in the receipt of medications to treat OUD after an index event related to this disorder among patients with disability were substantial and did not change over time. The high incidence of ambulatory visits in all groups showed that disparities persisted despite frequent health care contact. (Funded by the National Institute on Drug Abuse and the National Institute on Aging.).

Associations Between Distinct Co-occurring Substance Use Disorders and Receipt of Medications for Opioid Use Disorder in the Veterans Health Administration

OBJECTIVES

Among people with opioid use disorder (OUD), having a co-occurring substance use disorder (SUD) is associated with lower likelihood of receiving OUD treatment medications (MOUD). However, it is unclear how distinct co-occurring SUDs are associated with MOUD receipt. This study examined associations of distinct co-occurring SUDs with initiation and continuation of MOUD among patients with OUD in the national Veterans Health Administration (VA).

METHODS

Electronic health record data were extracted for outpatients with OUD who received care August 1, 2016, to July 31, 2017. Analyses were conducted separately among patients without and with prior-year MOUD receipt to examine initiation and continuation, respectively. SUDs were measured using diagnostic codes; MOUD receipt was measured using prescription fills/clinic visits. Adjusted regression models estimated likelihood of following-year MOUD receipt for patients with each co-occurring SUD relative to those without.

RESULTS

Among 23,990 patients without prior-year MOUD receipt, 12% initiated in the following year. Alcohol use disorder (adjusted incidence rate ratio [aIRR], 0.80; 95% confidence interval [CI], 0.72-0.90) and cannabis use disorder (aIRR, 0.78; 95% CI, 0.70-0.87) were negatively associated with initiation. Among 11,854 patients with prior-year MOUD receipt, 83% continued in the following year. Alcohol use disorder (aIRR, 0.94; 95% CI, 0.91-0.97), amphetamine/other stimulant use disorder (aIRR, 0.94; 95% CI, 0.90-0.99), and cannabis use disorder (aIRR, 0.95; 95% CI, 0.93-0.98) were negatively associated with continuation.

CONCLUSIONS

In this study of national VA outpatients with OUD, those with certain co-occurring SUDs were less likely to initiate or continue MOUD. Further research is needed to identify barriers related to specific co-occurring SUDs.

Increasing Use of Video Telehealth Among Veterans Experiencing Homelessness with Substance Use Disorder: Design of A Peer-Led Intervention

Telehealth offers promising opportunities, but also challenges, for veterans experiencing homelessness - during the COVID-19 pandemic and beyond. Recent research found low utilization of clinical video visits among homeless veterans receiving a VA tablet, and having a substance use disorder (SUD) further reduced visit likelihood. Hence, this study sought to identify unique barriers to telehealth use among veterans experiencing homelessness with a SUD and design an intervention to promote adoption. This qualitative study was guided by the Unified Theory of Acceptance and Use of Technology (UTAUT) model. The study's three phases included veteran interviews (N = 28) to identify barriers and facilitators to video telehealth use and propose intervention candidates, a provider expert panel to obtain feedback on interventions, and a focus group with veterans to complete the intervention. Finally, a prototype was designed using the intervention mapping approach. Veteran interviews revealed that barriers to video telehealth included complex physical and mental health issues, lack of digital literacy, and insufficient technical support. Together, veterans and experts proposed five intervention candidates. In the end, a veteran focus group combined two candidates, peer-led digital training and motivational interviewing. Intervention mapping was used to design a "stepped care" intervention that trains and activates veterans at all skill levels. This study demonstrates how inclusion of expert and veteran views led to development of a novel intervention to support and sustain video telehealth use among veterans experiencing homeless with SUD.

Outpatient follow-up and use of medications for opioid use disorder after residential treatment among Medicaid enrollees in 10 states

BACKGROUND

Follow-up after residential treatment is considered best practice in supporting patients with opioid use disorder (OUD) in their recovery. Yet, little is known about rates of follow-up after discharge. The objective of this analysis was to measure rates of follow-up and use of medications for OUD (MOUD) after residential treatment among Medicaid enrollees in 10 states, and to understand the enrollee and episode characteristics that are associated with both outcomes.

METHODS

Using a distributed research network to analyze Medicaid claims data, we estimated the likelihood of 4 outcomes occurring within 7 and 30 days post-discharge from residential treatment for OUD using multinomial logit regression: no follow-up or MOUD, follow-up visit only, MOUD only, or both follow-up and MOUD. We used meta-analysis techniques to pool state-specific estimates into global estimates.

RESULTS

We identified 90,639 episodes of residential treatment for OUD for 69,017 enrollees from 2018 to 2019. We found that 62.5% and 46.9% of episodes did not receive any follow-up or MOUD at 7 days and 30 days, respectively. In adjusted analyses, co-occurring mental health conditions, longer lengths of stay, prior receipt of MOUD or behavioral health counseling, and a recent ED visit for OUD were associated with a greater likelihood of receiving follow-up treatment including MOUD after discharge.

CONCLUSIONS

Forty-seven percent of residential treatment episodes for Medicaid enrollees are not followed by an outpatient visit or MOUD, and thus are not following best practices.

Implications of missingness in self-reported data for estimating racial and ethnic disparities in Medicaid quality measures

OBJECTIVE

To assess the feasibility and implications of imputing race and ethnicity for quality and utilization measurement in Medicaid.

DATA SOURCES AND STUDY SETTING

2017 Oregon Medicaid claims from the Oregon Health Authority and electronic health records (EHR) from OCHIN, a clinical data research network, were used.

STUDY DESIGN

We cross-sectionally assessed Hispanic-White, Black-White, and Asian-White disparities in 22 quality and utilization measures, comparing self-reported race and ethnicity to imputed values from the Bayesian Improved Surname Geocoding (BISG) algorithm.

DATA COLLECTION

Race and ethnicity were obtained from self-reported data and imputed using BISG.

PRINCIPAL FINDINGS

42.5%/4.9% of claims/EHR were missing self-reported data; BISG estimates were available for >99% of each and had good concordance (0.87-0.95) with Asian, Black, Hispanic, and White self-report. All estimated racial and ethnic disparities were statistically similar in self-reported and imputed EHR-based measures. However, within claims, BISG estimates and incomplete self-reported data yielded substantially different disparities in almost half of the measures, with BISG-based Black-White disparities generally larger than self-reported race and ethnicity data.

CONCLUSIONS

BISG imputation methods are feasible for Medicaid claims data and reduced missingness to <1%. Disparities may be larger than what is estimated using self-reported data with high rates of missingness.

Improving Research on Racial Disparities in Access to Medications to Treat Opioid Use Disorders

OBJECTIVES

The aims of the study are to review the current research on the association between access to medications for opioid use disorders (MOUD) and race, to identify gaps in research methods, and to propose new approaches to end racialized disparities in access to MOUD.

METHODS

We conducted a literature review of English language peer-reviewed published literature from 2010 to 2021 to identify research studies examining the association between race and use of, or access to, MOUD.

RESULTS

We reviewed 21 studies related to access to MOUD for Black and White populations. Of the 21 studies, 16 found that Black individuals had lower use of, or access to, MOUD than White individuals, 2 found the opposite among patients in specialty addiction treatment, 1 found that the difference changed over time, and 2 found that distance to opioid treatment programs was shorter for Black residents than for White residents.

CONCLUSIONS

To improve future research, we recommend that researchers (1) be clearer on how race is conceptualized and interpreted; (2) explicitly evaluate the intersection of race and other factors that may influence access such as income, insurance status, and geography; (3) use measures of perceived racism, unconscious bias, and self-identified race; (4) collect narratives to better understand why race is associated with lower MOUD access and identify solutions; and (5) evaluate the effect of policies, programs, and clinical training on reducing racial disparities. A multitude of studies find that Black individuals have lower access to MOUD. Researchers must now identify effective solutions for reducing these disparities.

Impact of COVID-19 Telehealth Policy Changes on Buprenorphine Treatment for Opioid Use Disorder

OBJECTIVE

The authors examined the impact of COVID-19-related policies reducing barriers to telehealth delivery of buprenorphine treatment for opioid use disorder (OUD) on buprenorphine treatment across different modalities (telephone, video, and in-person visits).

METHODS

This was a national retrospective cohort study with interrupted time-series analyses to examine the impact of policy changes in March 2020 on buprenorphine treatment for OUD in the Veterans Health Administration, during the year before the start of the COVID-19 pandemic (March 2019 to February 2020) and during the first year of the pandemic (March 2020 to February 2021). The authors also examined trends in the use of telephone, video, and in-person visits for buprenorphine treatment and compared patient demographic characteristics and retention in buprenorphine treatment across the two periods.

RESULTS

The number of patients receiving buprenorphine increased from 13,415 in March 2019 to 15,339 in February 2021. By February 2021, telephone visits were used by the most patients (50.2%; 4,456 visits), followed by video visits (32.4%; 2,870 visits) and in-person visits (17.4%; 1,544 visits). During the pre-pandemic period, the number of patients receiving buprenorphine increased significantly by 103 patients per month. After the COVID-19 policy changes, there was an immediate increase of 265 patients in the first month, and the number continued to increase significantly, at a rate of 47 patients per month. The demographic characteristics of patients receiving buprenorphine during the pandemic period were similar to those during the pre-pandemic period, but the proportion of patients reaching 90-day retention on buprenorphine treatment decreased significantly from 49.6% to 47.7%, while days on buprenorphine increased significantly from 203.8 to 208.7.

CONCLUSIONS

The number of patients receiving buprenorphine continued to increase after the COVID-19 policy changes, but the delivery of care shifted to telehealth visits, suggesting that any reversal of COVID-19 policies must be carefully considered.

Association between clinically recognized suicidality and subsequent initiation or continuation of medications for opioid use disorder

BACKGROUND

Among individuals with opioid use disorder (OUD), medications for OUD (MOUD) may lower suicide risk. Therefore, it is important that individuals with OUD and suicidality receive MOUD. This study examined associations between clinically recognized suicidality and subsequent initiation or continuation of MOUD among patients with OUD in the national Veterans Health Administration (VA).

METHODS

Electronic health record data were extracted for outpatients with OUD who received VA care 10/1/2016-7/31/2017. Suicidality was measured using diagnostic codes for suicidal ideation/attempt and patient record flags. Analyses were conducted separately among patients without prior-year MOUD receipt to examine MOUD initiation, and with prior-year MOUD receipt to examine MOUD continuation. Poisson regression models estimated likelihood of MOUD receipt in the following year for patients with prior-year suicidality relative to those without. Models were adjusted for sociodemographic and clinical characteristics.

RESULTS

Among 20,085 patients with no prior-year MOUD, 12% had suicidality and 12% received MOUD in the following year. Suicidality was positively associated with MOUD initiation (adjusted incidence rate ratio [aIRR]: 1.15, 95% confidence interval [CI]: 1.04-1.28). Among 10,162 patients with prior-year MOUD, 9% had suicidality and 84% received MOUD in the following year. Suicidality was negatively associated with MOUD continuation (aIRR: 0.95, 95% CI 0.91-0.98).

CONCLUSIONS

Among VA patients with OUD, clinically recognized suicidality may increase likelihood of MOUD initiation but decrease likelihood of continuation. Efforts to increase initiation overall and to support retention for patients with suicidality are needed.

Commentary on disparity bias in opioid use disorder treatment: policy change perspective

Disparities in the healthcare system are a topic of continuous discussion in public health. Despite decades of conversations with regards to health inequities, disparities still plague substance use disorder treatment. Opioid use disorder treatment is no exception as disparities has been attributed to the ingrained and deeply flawed mindset of discrimination. Hence, this review highlights the role of policy with regards to discrimination.

Effects of Medicaid expansion on alcohol and opioid treatment admissions in U.S. racial/ethnic groups

BACKGROUND

Excessive drinking and opioid misuse exact a high toll on U.S. lives and differentially affect U.S. racial/ethnic groups in exposure and resultant harms. Increasing access to specialty treatment is an important policy strategy to mitigate this, particularly for lower-income and racial/ethnic minority persons who face distinctive barriers to care. We examined whether the U.S. Affordable Care Act's Medicaid expansion improved treatment utilization in the overall population and for Black, Latino, and White Americans separately.

METHODS

We analyzed total and Medicaid-insured alcohol and opioid treatment admissions per 10,000 adult, state residents using 2010-2016 data from SAMHSA's Treatment Episode Data Set (N = 20 states), with difference-in-difference models accounting for state fixed effects and time-varying state demographic characteristics, treatment need, and treatment supply.

RESULTS

Total treatment admission rates in the overall population declined for alcohol and remained roughly flat for opioids in both expansion and non-expansion states from 2010 through 2016. By contrast, estimated Medicaid-insured alcohol and opioid treatment rates rose in expansion states and decreased in non-expansion states following Medicaid expansion in 2014. The latter results were found for alcohol treatment in the total population and in each racial/ethnic group, as well as for Black and White Americans for opioid treatment.

CONCLUSIONS

Medicaid expansion was associated with greater specialty treatment entry at a time when alcohol and opioid treatment rates were declining or flat. Findings underscore benefits of expanding Medicaid eligibility to increase treatment utilization for diverse racial/ethnic groups, but also suggest an emerging treatment disparity between lower-income Americans in expansion and non-expansion states.

Differences in the delivery of medications for opioid use disorder during hospitalization by racial categories: A retrospective cohort analysis

Background: As the drug-related overdose crisis and COVID-19 pandemic continue, communities need increased access to medications for opioid use disorder (MOUD) (i.e., buprenorphine and methadone). Disparities in the type of MOUD prescribed or administered by racial and ethnic categories are well described in the outpatient clinical environment. It is unknown, however, if these disparities persist when MOUD is provided in acute care hospitals. Methods: This study assessed differences in the delivery of buprenorphine versus methadone during acute medical or surgical hospitalizations for veterans with opioid use disorder (OUD) by racial categories (Black Non-Hispanic or Latino vs. White Non-Hispanic or Latino). Data were obtained retrospectively from the Veterans Health Administration (VHA) for federal fiscal year 2017. We built logistic regression models, adjusted for individual and hospital-related covariates, and calculated the predicted probabilities of MOUD delivery by racial categories. Results: The study cohort (n = 1,313 unique patients; N = 107 VHA hospitals) had a mean age of 57 (range 23 to 87 years), was predominantly male (96%), and composed entirely of Black (29%) or White (71%) patients. White patients were 11% more likely than Black patients to receive buprenorphine than methadone during hospitalization (p = 0.010; 95% CI: 2.7%, 20.0%). Among patients on MOUD prior to hospitalization, White patients were 21% more likely than Black patients to receive buprenorphine (p = 0.000; 95% CI: 9.8%, 31.5%). Among patients newly initiated on MOUD during hospitalization, there were no differences by racial categories. Conclusion: We observed disparities in the delivery of buprenorphine versus methadone during hospitalization by racial categories. The observed differences in hospital-based MOUD delivery may be influenced by MOUD received prior to hospitalization within the racialized outpatient addiction treatment system. The VHA and health systems more broadly must address all aspects of racism that contribute to inequitable MOUD access throughout all clinical contexts.

"The idea is to help people achieve greater success and liberty": A qualitative study of expanded methadone take-home access in opioid use disorder treatment

Background: Prior to the COVID-19 pandemic, the United States (US) was already facing an epidemic of opioid overdose deaths. Overdose deaths continued to surge during the pandemic. To limit COVID-19 spread and to avoid disruptions in access to medications for opioid use disorder (MOUD), including buprenorphine and methadone, US federal and state agencies granted unprecedented exemptions to existing MOUD guidelines for Opioid Treatment Programs (OTPs), including loosening criteria for unsupervised take-home doses. We conducted a qualitative study to evaluate the impact of these policy changes on MOUD treatment experiences for providers and patients at an OTP in California. Methods: We interviewed 10 providers (including two physicians, five social worker associates, and three nurse practitioners) and 20 patients receiving MOUD. We transcribed, coded, and analyzed all interviews to identify emergent themes. Results: Patient participants were middle-aged (median age 51 years) and were predominantly men (53%). Providers discussed clinical decision-making processes and experiences providing take-homes. Implementation of expanded take-home policies was cautious. Providers reported making individualized decisions, using patient factors to decide if benefits outweighed risks of overdose and misuse. Decision-making factors included patient drug use, overdose risk, housing status, and vulnerability to COVID-19. New patient groups started receiving take-homes and providers noted few adverse events. Patients who received take-homes reported increased autonomy and treatment flexibility, which in turn increased likelihood of treatment stabilization and engagement. Patients who remained ineligible for take-homes, usually due to ongoing non-prescribed opioid or benzodiazepine use, desired greater transparency and shared decision-making. Conclusion: Federal exemptions in response to COVID-19 led to the unprecedented expansion of access to MOUD take-homes within OTPs. Providers and patients perceived benefits to expanding access to take-homes and experienced few adverse outcomes, suggesting expanded take-home policies should remain post-COVID-19. Future studies should explore whether these findings are generalizable to other OTPs and assess larger samples to quantify patient-level outcomes resulting from expanded take-home policies.

The acceptability and feasibility of screening, brief intervention, and referral to treatment for pain management among new England veterans with chronic pain: A pilot study

OBJECTIVES

Musculoskeletal disorders often lead to chronic pain in Veterans. Chronic pain puts sufferers at risk for substance misuse, and early intervention is needed for both conditions. This pilot study tested the feasibility and acceptability of a Screening, Brief Intervention, and Referral to Treatment for Pain Management intervention (SBIRT-PM) to help engage Veterans seeking disability compensation for painful musculoskeletal disorders in multimodal pain treatment and to reduce risky substance use, when indicated.

METHODS

This pilot study enrolled 40 Veterans from 8 medical centers across New England in up to 4 sessions of telephone-based counseling using a motivational interviewing framework. Counseling provided education about, and facilitated engagement in, multimodal pain treatments. Study eligibility required Veterans be engaged in no more than 2 Veteran Affairs (VA) pain treatment modalities, and study participation involved a 12-week postassessment and semistructured interview about the counseling process.

RESULTS

Majorities of enrolled Veterans screened positive for comorbid depression and problematic substance use. Regarding the offered counseling, 80% of participants engaged in at least one session, with a mean of 3 sessions completed. Ninety percent of participants completed the postassessment. Numerically, most measures improved slightly from baseline to week 12. In semistructured interviews, participants described satisfaction with learning about new pain care services, obtaining assistance connecting to services, and receiving support from their counselors.

DISCUSSION

It was feasible to deliver SBIRT-PM to Veterans across New England to promote engagement in multimodal pain treatment and to track study outcomes over 12 weeks. Preliminary results suggest SBIRT-PM was well-received and has promise for the targeted outcomes.

Legal System Involvement and Opioid-Related Overdose Mortality in U.S. Department of Veterans Affairs Patients

INTRODUCTION

Opioid-related overdose risks are elevated after incarceration. The rates of opioid-related overdose mortality have risen in recent years, including among Veterans Health Administration patients. To inform Veteran overdose prevention, this study evaluates whether opioid-related overdose risks differ for Veterans Health Administration patients with versus those without indicators of legal system involvement.

METHODS

This retrospective national cohort study, conducted in 2019-2021, used Veterans Health Administration electronic health records and death certificate data from the Department of Veterans Affairs/Department of Defense Mortality Data Repository to examine opioid-related overdose mortality from January 1, 2013 through December 31, 2017. The cohort included 5,390,902 Veterans with Veterans Health Administration inpatient or outpatient encounters in 2012 who were alive as of January 1, 2013, of whom 32,284 (0.60%) patients had legal system involvement in 2012, indicated by Veterans Justice Programs outpatient encounters. Cox proportional hazards regression models assessed the associations between legal involvement and risk of opioid-related overdose mortality.

RESULTS

There were 4,670 opioid-related overdose deaths, including 295 (6.31%) among legal-involved Veterans. Veterans with legal involvement had a higher opioid-related overdose mortality rate per 100,000 person-years (191.22, 95% CI=169.40, 213.04 vs 17.76, 95% CI=17.23, 18.29, p<0.001) and an elevated risk of opioid-related overdose mortality (adjusted hazard ratio=1.38, 95% CI=1.22, 1.57, p<0.001) compared with those without.

CONCLUSIONS

Among Veterans receiving Veterans Health Administration care in 2012, documented legal system involvement was associated with an increased risk of opioid-related overdose mortality. Targeting overdose education and naloxone distribution programs and integrating opioid overdose prevention efforts into mental health care may reduce opioid overdose deaths among Veterans with legal involvement.

Substance Use in Pregnancy: Identifying Stigma and Improving Care

This review examines the impact of stigma on pregnant people who use substances. Stigma towards people who use drugs is pervasive and negatively impacts the care of substance-using people by characterizing addiction as a weakness and fostering beliefs that undermine the personal resources needed to access treatment and recover from addiction, including self-efficacy, help seeking and belief that they deserve care. Stigma acts on multiple levels by blaming people for having a problem and then making it difficult for them to get help, but in spite of this, most pregnant people who use substances reduce or stop using when they learn they are pregnant. Language, beliefs about gender roles, and attitudes regarding fitness for parenting are social factors that can express and perpetuate stigma while facilitating punitive rather than therapeutic approaches. Because of stigmatizing attitudes that a person who uses substances is unfit to parent, pregnant people who use substances are at heightened risk of being screened for substance use, referred to child welfare services, and having their parental rights taken away; these outcomes are even more likely for people of color. Various treatment options can successfully support recovery in substance-using pregnant populations, but treatment is underutilized in all populations including pregnant people, and more knowledge is needed on how to sustain engagement in treatment and recovery activities. To combat stigma when working with substance-using pregnant people throughout the peripartum period, caregivers should utilize a trauma-informed approach that incorporates harm reduction and motivational interviewing with a focus on building trust, enhancing self-efficacy, and strengthening the personal skills and resources needed to optimize health of the parent-baby dyad.

A national survey of barriers and facilitators to medications for opioid use disorder among legal-involved veterans in the Veterans Health Administration

Background: Medications for opioid use disorder (MOUD) are clinically effective at treating OUD among legal-involved populations. However, research shows that legal-involved veterans who receive care through the VHA have lower rates of MOUD use compared to non-legal-involved veterans. Education may be a key factor in intervention strategies to improve MOUD access. This study was a national survey of VHA staff to identify barriers to and facilitators of MOUD, as well as MOUD-related education needs for VHA staff, community partners, criminal justice partners, and legal-involved veterans. Method: A 98-item online survey was conducted to examine VHA staff perspectives (N = 218) around needed education, barriers to, and facilitators of MOUD for legal-involved veterans. Descriptive statistics were conducted and linear regression analyses were used to evaluate differences in perceptions by respondents' current position at the VHA and their VHA facility's rate of provision of MOUD among legal-involved veterans. Results: Respondents endorsed a need for education in all areas of MOUD (e.g., existing medications for the treatment of OUD) for VHA staff and providers, community partners, criminal justice partners, and legal-involved veterans. VHA staff perceived barriers to MOUD for legal-involved veterans to include stigma and complicated guidelines around MOUD and OUD treatment. Facilities with low rates of MOUD use highlighted barriers including MOUD conflicting with the philosophy of the local VHA facility and provider stigma toward patients with OUD. Perceptions of efficacy of MOUD differed by respondents' current position at the VHA such that substance use disorder treatment providers perceived buprenorphine and methadone as more effective compared to Veterans Justice Specialists. Conclusion: The results of this study suggest a need for an educational intervention emphasizing the evidence supporting use of MOUD as a lack of knowledge about these medications was considered a barrier to access, whereas gaining education about MOUD was a facilitator to access. Education strategies specifically tailored to address VHA facility-level differences may help address barriers to MOUD experienced by legal-involved veterans.

Buprenorphine Naloxone and Extended Release Injectable Naltrexone for the Treatment of Opioid Use Disorder Among a Veteran Patient Sample: A Retrospective Chart Review

Previous research has demonstrated the effectiveness of both extended-release injectable naltrexone (XR-NTX) and buprenorphine/naloxone (BUP-NX) in the treatment of opioid use disorder (OUD). However, studies using real-world samples with multiple medical and psychiatric comorbidities are lacking. The study's primary aims were to: (1) compare clinical presentations in an inclusive sample of OUD-diagnosed US military veterans receiving XR-NTX and BUP-NX, and (2) investigate differences in 90-day treatment outcomes between these two groups. Methods: The medical records of 79 patients receiving medications to treat OUD in a VA hospital's addiction outpatient treatment program were reviewed retrospectively. The analysis included all veterans who initiated medication treatment during the study period. Differences between medication groups on co-occurring diagnoses, treatment retention, and related outcomes were examined. Results: The two groups were similar in medical and psychiatric comorbidity, although the BUP-NX group were more likely to have a pain diagnosis. No statistically significant differences in retention or toxicology results were found between the two groups over the 90-day study period. The rate of positive urine screens for the BUP-NX group was 19.2% for opiates and 13.5% for other illicit substances, and 3.7% and 11.1% respectively for the XR- NTX group. Conclusion: There was no evidence that 90-days outcomes differed for veterans based on medication received, and there were more similarities than differences in clinical characteristics. Additional research is needed, including larger sample size and prospective randomized control trial to evaluate VA patients' treatment outcomes receiving BUP-NX or XR-NTX for OUD.

Strategies to improve implementation of medications for opioid use disorder reported by veterans involved in the legal system: A qualitative study

BACKGROUND

Veterans involved in the legal system have a high risk of overdose mortality but limited utilization of medications for opioid use disorder (MOUD). To increase the use of MOUD in Veterans Health Administration (VHA) facilities and reduce overdose mortality, the VHA should incorporate strategies identified by legal-involved veterans to improve quality of care and ensure that their patients' experiences are integrated into care delivery. This study aims to determine strategies to increase use of MOUD from the perspective of legal-involved veterans with a history of opioid use or opioid use disorder (OUD).

METHODS

Between February 2018 and March 2019, we conducted semistructured interviews with 18 veterans with a history of opioid use or OUD and legal involvement (15 men and 3 women; mean age 41, standard deviation 13, range 28-61). Veterans were from 9 geographically dispersed United States VHA facilities. The study analyzed verbatim transcripts using the framework method. The primary focus was themes that represented legal-involved veteran-identified strategies to improve the use of MOUD.

RESULTS

The 18 veterans interviewed had legal involvement directly related to their opioid use and most (n = 15; 83%) had previously used MOUD. Veteran-identified strategies to improve access to and use of MOUD included: (1) VHA should provide transportation or telehealth services; (2) legal agencies should increase access to MOUD during incarceration; (3) the VHA should reduce physician turnover; (4) the VHA should improve physician education to deliver compassionate, patient-centered treatment; (5) the VHA should improve veteran education about MOUD; and (6) the VHA should provide social support opportunities to veterans.

CONCLUSIONS

Legal-involved veterans provided strategies that can inform and expand MOUD to better meet their needs and the treatment needs of all patients with OUD. The VHA should consider incorporating these strategies into care, and should evaluate their impact on patients' experience, initiation of and retention on medications, and overdose rates.

Barriers to Medications for Opioid Use Disorder Among Veterans Involved in the Legal System: a Qualitative Study

BACKGROUND

Veterans involved in the legal system are at high risk for overdose but have lower receipt of medications for opioid use disorder than other veterans.

OBJECTIVE

The study aimed to understand barriers to medication access from the perspective of legally involved veterans with opioid use disorder and people who work with these veterans in the Veterans Health Administration (VHA) and the legal system.

DESIGN

This national qualitative study interviewed veterans and stakeholders from 14 geographically diverse VHA facilities to explore perceptions of barriers to medications for opioid use disorder.

PARTICIPANTS

Participants included veterans with a history of opioid use disorder and legal involvement (n = 18), VHA Veterans Justice Programs Specialists (n = 15), VHA and community substance use disorder treatment providers (n = 5), and criminal justice staff (n = 12).

APPROACH

We conducted interviews based on the Consolidated Framework for Implementation Research. Interview transcripts were analyzed using a team-based approach.

KEY RESULTS

Four key barriers, noted by group, were identified: (1) a preference for counseling along with or instead of medications (veterans, Specialists, treatment providers, criminal justice staff); (2) concerns about veterans using medications without a prescription, selling them, or providing them to others (veterans, Specialists, treatment providers, criminal justice staff); (3) concerns about perceived stigma towards medication use (veterans, Specialists, treatment providers, criminal justice staff); and (4) concerns about medication discontinuation after recurrent opioid use (veterans, criminal justice staff). A fifth theme, education, was noted by all stakeholders except providers as important to facilitating use of medications for opioid use disorder. All five themes mapped to the framework construct of knowledge and beliefs about the intervention.

CONCLUSIONS

Based on identified barriers, interventions focused on enhancing medication knowledge, reducing stigma towards use of medications, and increasing knowledge that opioid use may recur during treatment may help increase access to medication for veterans with legal involvement.