Medication-Assisted Treatment Use Among Pregnant Women With Opioid Use Disorder

Knowledge, experiences, and perceptions of medications for opioid use disorder among Black Kentuckians

BACKGROUND

Opioid overdoses have continued to increase at higher rates among Black Americans compared to people from other racial groups. Despite demonstrated effectiveness of MOUD in reducing risk of opioid overdose, Black Americans face decreased access to and uptake of MOUD. The current study aimed to examine the knowledge, perceptions, and experiences with MOUD among a sample of Black adults who use prescription opioids nonmedically in order to inform tailored efforts to improve MOUD uptake.

METHODS

Data were derived from a larger study assessing cultural and structural influences on drug use and drug treatment among people who use prescription opioids nonmedically. Semi-structured qualitative interviews were conducted with 34 Black men and women across four generational cohorts: born 1955-1969; 1970-1979; 1980-1994; and 1995-2001. Participant responses were analyzed using thematic analysis.

RESULTS

Nearly half of participants (44.1%) reported no knowledge or experience with MOUD. Among participants who had any knowledge about MOUD, four major themes regarding their perceptions emerged: MOUD Helps with Recovery; Not Needed for Level of Drug Use; Side Effects and Withdrawal; Equivalence with Illicit Drug Use. The majority reported negative perceptions of MOUD (52.6%), and the youngest cohort (born 1995-2001) had a higher proportion of negative perceptions (80%) relative to other age cohorts (born 1980-1994: 50%; 1970-1979: 75%; 1955-1969: 16.6%).

DISCUSSION

Findings indicate a significant knowledge gap and clear points of intervention for improving MOUD uptake. Interventions to improve communication of health information in ways that are culturally relevant and tailored by age group can be used in conjunction with efforts to improve MOUD access among Black individuals who use opioids nonmedically.

A population-based time-series analysis of opioid agonist treatment dispensed during pregnancy

BACKGROUND AND AIMS

Identifying effective opioid treatment options during pregnancy is a high priority due to the growing prevalence of opioid use disorder across North America. We assessed the temporal impact of three population-level interventions on the use of opioid agonist treatment (OAT) during pregnancy in Ontario, Canada.

DESIGN

This was a population-based time-series analysis to identify trends in the monthly prevalence of pregnant people dispensed methadone and buprenorphine. The impact of adding buprenorphine/naloxone to the public drug formulary, the release of pregnancy-specific guidance and the start of the COVID-19 pandemic were assessed.

SETTING AND PARTICIPANTS

The study was conducted in Ontario, Canada between 1 July 2013 and 31 March 2022, comprising people who delivered a live or stillbirth in any Ontario hospital during the study period.

MEASUREMENTS

We identified any prescription for methadone or buprenorphine dispensed between the estimated conception date and delivery date and calculated the monthly prevalence of OAT-exposed pregnancies among all pregnant people in Ontario.

FINDINGS

Overall, rates of OAT during pregnancy have declined since mid-2018. Methadone-exposed pregnancies decreased from 0.46% of all pregnancies in Ontario in 2015 to a low of 0.16% in 2022. In the primary analysis, none of the interventions had a statistically significant impact on overall OAT rates; however, in the stratified analyses, there was a small increase in buprenorphine after the formulary change [0.006%, 95% confidence interval (CI) = 0.0032-0.0081, P < 0.0001] and a decrease in buprenorphine after the release of the 2017 guidelines (-0.005%, 95% CI = -0.0080 to -0.0020, P = 0.001) and the start of the COVID-19 pandemic (-0.003%, 95% CI = -0.0054 to -0.0006, P = 0.015).

CONCLUSION

Despite changes in guidance and funding, opioid agonist treatment during pregnancy has been declining in Ontario, Canada since 2018.

"Instead of just taking my baby, they could've actually given me a chance": Experiences with plans of safe care among birth parents impacted by perinatal substance use

BACKGROUND

Federal legislation mandates healthcare providers to notify child protective service (CPS) agencies and offer a voluntary care plan called a "plan of safe care" (POSC) for all infants born affected by prenatal substance use. While POSCs aim to provide supportive services for families impacted by substance use, little is known about birth parents' perceptions and experiences.

OBJECTIVE

To examine birth parents' perceptions and experiences regarding POSC.

PARTICIPANTS AND SETTING

Parents offered a POSC in Philadelphia in the prior year were included.

METHODS

This is a qualitative interview study. Participants were recruited from birth hospitals and community-based programs with telephone consent and interview procedures. Transcripts were analyzed using an inductive, grounded theory approach to identify content themes.

RESULTS

Twelve birth parents were interviewed (30.7 % of eligible, contacted individuals). Fear of CPS involvement and stigma were common. Some birth parents reported that the increased scrutiny related to POSCs negatively impacted their attitudes toward healthcare providers and medications for opioid use disorder (MOUD). While parents found the consolidated resource information helpful, many did not know how to access services. Finally, parents desired more individualized plans tailored to their unique family needs.

CONCLUSIONS

Stigma, confusion, and fear of CPS involvement undermine the goal of POSCs to support substance-exposed infants and birth parents. Providers serving this population should be transparent regarding CPS notifications, provide compassionate, non-stigmatizing care, and offer coordination services to support engagement after discharge. Policymakers should consider separating POSCs from CPS to avoid exacerbating fear and mistrust.

Investigating the neurobiology of maternal opioid use disorder and prenatal opioid exposure using brain organoid technology

Over the past two decades, Opioid Use Disorder (OUD) among pregnant women has become a major global public health concern. OUD has been characterized as a problematic pattern of opioid use despite adverse physical, psychological, behavioral, and or social consequences. Due to the relapsing-remitting nature of this disorder, pregnant mothers are chronically exposed to exogenous opioids, resulting in adverse neurological and neuropsychiatric outcomes. Collateral fetal exposure to opioids also precipitates severe neurodevelopmental and neurocognitive sequelae. At present, much of what is known regarding the neurobiological consequences of OUD and prenatal opioid exposure (POE) has been derived from preclinical studies in animal models and postnatal or postmortem investigations in humans. However, species-specific differences in brain development, variations in subject age/health/background, and disparities in sample collection or storage have complicated the interpretation of findings produced by these explorations. The ethical or logistical inaccessibility of human fetal brain tissue has also limited direct examinations of prenatal drug effects. To circumvent these confounding factors, recent groups have begun employing induced pluripotent stem cell (iPSC)-derived brain organoid technology, which provides access to key aspects of cellular and molecular brain development, structure, and function in vitro. In this review, we endeavor to encapsulate the advancements in brain organoid culture that have enabled scientists to model and dissect the neural underpinnings and effects of OUD and POE. We hope not only to emphasize the utility of brain organoids for investigating these conditions, but also to highlight opportunities for further technical and conceptual progress. Although the application of brain organoids to this critical field of research is still in its nascent stages, understanding the neurobiology of OUD and POE via this modality will provide critical insights for improving maternal and fetal outcomes.

Implementation and early effects of medicaid policy interventions to promote racial equity in pregnancy and early childhood outcomes in Pennsylvania: protocol for a mixed methods study

BACKGROUND

There are large racial inequities in pregnancy and early childhood health within state Medicaid programs in the United States. To date, few Medicaid policy interventions have explicitly focused on improving health in Black populations. Pennsylvania Medicaid has adopted two policy interventions to incentivize racial health equity in managed care (equity payment program) and obstetric service delivery (equity focused obstetric bundle). Our research team will conduct a mixed-methods study to investigate the implementation and early effects of these two policy interventions on pregnancy and infant health equity.

METHODS

Qualitative interviews will be conducted with Medicaid managed care administrators and obstetric and pediatric providers, and focus groups will be conducted among Medicaid beneficiaries. Quantitative data on healthcare utilization, healthcare quality, and health outcomes among pregnant and parenting people will be extracted from administrative Medicaid healthcare data. Primary outcomes are stakeholder perspectives on policy intervention implementation (qualitative) and timely prenatal care, pregnancy and birth outcomes, and well-child visits (quantitative). Template analysis methods will be applied to qualitative data. Quantitative analyses will use an interrupted time series design to examine changes over time in outcomes among Black people, relative to people of other races, before and after adoption of the Pennsylvania Medicaid equity-focused policy interventions.

DISCUSSION

Findings from this study are expected to advance knowledge about how Medicaid programs can best implement policy interventions to promote racial equity in pregnancy and early childhood health.

Maternal opioid use disorder and infant mortality in Wisconsin, United States, 2010-2018

OBJECTIVE

The difference in infant health outcomes by maternal opioid use disorder (OUD) status is understudied. We measured the association between maternal OUD during pregnancy and infant mortality and investigated whether this association differs by infant neonatal opioid withdrawal syndrome (NOWS) or maternal receipt of medication for OUD (MOUD) during pregnancy.

METHODS

We sampled 204,543 Medicaid-paid births from Wisconsin, United States (2010-2018). The primary exposure was any maternal OUD during pregnancy. We also stratified this exposure on NOWS diagnosis (no OUD; OUD without NOWS; OUD with NOWS) and on maternal MOUD receipt (no OUD; OUD without MOUD; OUD with <90 consecutive days of MOUD; OUD with 90+ consecutive days of MOUD). Our outcome was infant mortality (death at age <365 days). Demographic-adjusted logistic regressions measured associations with odds ratios (OR) and 95% confidence intervals (CI).

RESULTS

Maternal OUD was associated with increased odds of infant mortality (OR 1.43; 95% CI 1.02-2.02). After excluding infants who died <5 days post-birth (i.e., before the clinical presentation of NOWS), regression estimates of infant mortality did not significantly differ by NOWS diagnosis. Likewise, regression estimates did not significantly differ by maternal MOUD receipt in the full sample.

CONCLUSIONS

Maternal OUD is associated with an elevated risk of infant mortality without evidence of modification by NOWS nor by maternal MOUD treatment. Future research should investigate potential mechanisms linking maternal OUD, NOWS, MOUD treatment, and infant mortality to better inform clinical intervention.

Trends and Disparities in Perinatal Opioid Use Disorder Treatment in Medicaid, 2007-2012

We described Medicaid-insured women by receipt of perinatal opioid use disorder (OUD) treatment; and trends and disparities in treatment. Using 2007 to 2012 Medicaid Analytic eXtract data from 45 states and D.C., we identified deliveries among women with OUD. Regressions modeled the association between patient characteristics and receipt of any OUD treatment, medication for OUD (MOUD), and counseling alone during the perinatal period. Rates of any OUD treatment and MOUD for women with perinatal OUD increased over the study period, but trends differed by subgroup. Compared with non-Hispanic White women, Black and American Indian/Alaskan Native (AI/AN) women were less likely to receive any OUD treatment, and Black women were less likely to receive MOUD. Over time, the disparity in receipt of MOUD between Black and White women increased. Overall gains in OUD treatment were driven by improvements in perinatal OUD care for White women and obscured disparities for Black and AI/AN women.

Forecasting Fetal Buprenorphine Exposure through Maternal-Fetal Physiologically Based Pharmacokinetic Modeling

Buprenorphine readily crosses the placenta, and with greater prenatal exposure, neonatal opioid withdrawal syndrome (NOWS) likely grows more severe. Current dosing strategies can be further improved by tailoring doses to expected NOWS severity. To allow the conceptualization of fetal buprenorphine exposure, a maternal-fetal physiologically based pharmacokinetic (PBPK) model for sublingual buprenorphine was developed using Simcyp (v21.0). Buprenorphine transplacental passage was predicted from its physicochemical properties. The maternal-fetal PBPK model integrated reduced transmucosal absorption driven by lower salivary pH and induced metabolism observed during pregnancy. Maternal pharmacokinetics was adequately predicted in the second trimester, third trimester, and postpartum period, with the simulated area under the curve from 0 to 12 h, apparent clearance, and peak concentration falling within the 1.25-fold prediction error range. Following post hoc adjustment of the likely degree of individual maternal sublingual absorption, umbilical cord blood concentrations at delivery (n = 21) were adequately predicted, with a geometric mean ratio between predicted and observed fetal concentrations of 1.15 and with 95.2% falling within the 2-fold prediction error range. The maternal-fetal PBPK model developed in this study can be used to forecast fetal buprenorphine exposure and would be valuable to investigate its correlation to NOWS severity.

Advances in the Care of Infants With Prenatal Opioid Exposure and Neonatal Opioid Withdrawal Syndrome

A significant number of advances have been made in the last 5 years with respect to the identification, diagnosis, assessment, and management of infants with prenatal opioid exposure and neonatal opioid withdrawal syndrome (NOWS) from birth to early childhood. The primary objective of this review is to summarize major advances that will inform the clinical management of opioid-exposed newborns and provide an overview of NOWS care to promote the implementation of best practices. First, advances with respect to standardizing the clinical diagnosis of NOWS will be reviewed. Second, the most commonly used assessment strategies are discussed, with a focus on presenting new quality improvement and clinical trial data surrounding the use of the new function-based assessment Eat, Sleep, and Console approach. Third, both nonpharmacologic and pharmacologic treatment modalities are reviewed, highlighting clinical trials that have compared the use of higher calorie and low lactose formula, vibrating crib mattresses, morphine compared with methadone, buprenorphine compared with morphine or methadone, the use of ondansetron as a medication to prevent the need for NOWS opioid pharmacologic treatment, and the introduction of symptom-triggered dosing compared with scheduled dosing. Fourth, maternal, infant, environmental, and genetic factors that have been found to be associated with NOWS severity are highlighted. Finally, emerging recommendations on postdelivery hospitalization follow-up and developmental surveillance are presented, along with highlighting ongoing and needed areas of research to promote infant and family well-being for families impacted by opioid use.

Implementing a clinical checklist for pregnant patients with opioid use disorder

BACKGROUND

Opioid use disorder (OUD) has been increasing in pregnant patients over the past two decades. Best practice guidelines that are available for these patients, must now be implemented by health care teams. Clinical checklists have been used for other complex patient cohorts with good success and are a potentially viable tool for ensuring best practices with this patient population as well.

LOCAL PROBLEM

Maine has seen a dramatic increase in the number of pregnant patients with OUD. Many of these patients seemed to "fall through the cracks" in the traditional prenatal care model. The obstetrical care team expressed feeling overwhelmed by the complex care needs of these patients and unsure of how to improve their care.

METHODS

To improve prenatal care delivery for patients with OUD, we implemented an evidence-based clinical checklist. This local, NP-led quality improvement project was done in partnership with a state-led initiative to improve perinatal care for patients with OUD.

INTERVENTIONS

An evidence-based checklist provided by the state initiative was implemented for prenatal patients with diagnosed OUD.

RESULTS

Use of a clinical checklist for patients with OUD increased the rate of several best practices during their prenatal care, including emergency naloxone prescription, tracking prescription monitoring reports, and contraceptive planning. Rates of completed prenatal screening for substance misuse, social determinants of health, and intimate partner violence also increased in our practice overall, as a result of this project.

CONCLUSIONS

To further improve perinatal care coordination for patients with OUD, we recommend future evaluation of clinical checklists within various practice settings.

Demographics, Birth Parameters, and Social Determinants of Health Among Opioid-Exposed Mother-Infant Dyads Affected by Neonatal Abstinence Syndrome in Pennsylvania, 2018-2019

OBJECTIVES

To characterize demographics, birth parameters, and social determinants of health among mother-infant dyads affected by neonatal abstinence syndrome (NAS) in Pennsylvania.

METHODS

We linked 2018-2019 NAS surveillance data to birth record data using probabilistic methods and then geospatially linked to local social determinants of health data based on residential address. We generated descriptive statistics and used multivariable mixed-effects logistic regression to model the association between maternal characteristics, birth parameters, social determinants of health, and NAS.

RESULTS

In adjusted models maternal age > 24, non-Hispanic white race/ethnicity, low educational attainment, Medicaid as payor at delivery, inadequate or no prenatal care, smoking during pregnancy, and low median household income were associated with NAS. We found no significant associations between NAS and county-level measures of clinician supply, number of substance use treatment facilities, or urban/rural designation.

CONCLUSIONS FOR PRACTICE

This study characterizes mother-infant dyads affected by NAS using linked non-administrative, population data for Pennsylvania. Results demonstrate a social gradient in NAS and inequity in prenatal care receipt among mothers of infants with NAS. Findings may inform implementation of state-based public health interventions.

Access to Prenatal Care Among Patients With Opioid Use Disorder in Florida: Findings From a Secret Shopper Study

OBJECTIVE

To evaluate access to prenatal care for pregnant patients receiving medication for opioid use disorder (MOUD) under Medicaid coverage in Florida.

METHODS

A cross-sectional, secret shopper study was conducted in which calls were made to randomly selected obstetric clinicians' offices in Florida. Callers posed as a 14-week-pregnant patient with Medicaid insurance who was receiving MOUD from another physician and requested to schedule a first-time prenatal care appointment. Descriptive statistics were used to report our primary outcome, the callers' success in obtaining appointments from Medicaid-enrolled physicians' offices. Wait time for appointments and reasons the physician offices refused appointments to callers were collected.

RESULTS

Overall, 2,816 obstetric clinicians are enrolled in Florida Medicaid. Callers made 1,747 attempts to contact 1,023 randomly selected physicians' offices from June to September 2021. Only 48.9% of medical offices (n=500) were successfully reached by phone, of which 39.4% (n=197) offered a prenatal care appointment to the caller. The median wait time until the first appointment was 15 days (quartile 1: 7; quartile 3: 26), with a range of 0-55 days. However, despite offering an appointment, 8.6% of the medical offices stated that they do not accept Medicaid insurance payment or would accept only self-pay. Among the 60.6% of callers unable to secure an appointment, the most common reasons were that the clinician was not accepting patients taking methadone (34.7%) or was not accepting any new patients with Medicaid insurance (23.8%) and that the pregnancy would be too advanced by the time of the first available appointment (7.3%).

CONCLUSION

This secret shopper study found that the majority of obstetric clinicians' offices enrolled in Florida Medicaid do not accept pregnant patients with Medicaid insurance who are taking MOUD. Policy changes are needed to ensure access to adequate prenatal care for patients with opioid use disorder.

Postpartum medication for opioid use disorder outcomes associated with prenatal treatment and neighborhood-level social determinants

BACKGROUND

Opioid use disorder is a leading cause of death through the year postpartum.

OBJECTIVE

This study aimed to identify the association of neighborhood-level social determinants of health and prenatal opioid use disorder treatment receipt with the outcomes of medication treatment for opioid use disorder through the year postpartum among a cohort of birthing people.

STUDY DESIGN

This was a population-based retrospective cohort study that used state Medicaid claims and enrollment data for the 1690 individuals who delivered a live infant between July 1, 2016 and December 31, 2020 and received medication for opioid use disorder at delivery. The primary exposure was the state Health Opportunity Index, a composite measure of social determinants of health linked at the census-tract level. Secondary exposures included comprehensiveness of opioid use disorder treatment and duration of medication treatment for opioid use disorder received prenatally. Outcomes included the duration and continuity of postpartum medication treatment for opioid use disorder, operationalized as the time from delivery to the discontinuation of medication treatment for opioid use disorder, and percentage of days covered by medication treatment for opioid use disorder within the 12 months after delivery, respectively.

RESULTS

Within the study sample, 711 deliveries were to birthing people in the lowest state Health Opportunity Index tercile (indicating high burden of negative social determinants of health), 647 in the middle state Health Opportunity Index tercile, and 332 in the highest state Health Opportunity Index tercile. Using stepwise multivariable regression (Cox proportional hazards and negative binomial models) guided by a socioecological framework, prenatal receipt of more comprehensive opioid use disorder treatment and/or longer duration of prenatal medication treatment for opioid use disorder was associated with improved 1-year postpartum opioid use disorder treatment outcomes (duration and continuity of medication treatment for opioid use disorder). When the state Health Opportunity Index was added to the models, these significant associations remained stable, with the state Health Opportunity Index not demonstrating an association with the outcomes (duration hazard ratio, 1.39; 95% confidence interval, 0.551-3.512; continuity relative risk, 1.024; 95% confidence interval, 0.323-3.247).

CONCLUSION

Targeted efforts at expanding access to and quality of evidence-based opioid use disorder treatments for reproductive-age people across the life course should be prioritized within the spectrum of work aimed at eradicating disparities in pregnancy-related mortality.

Developing a Theoretically Informed Implementation Model for Telemedicine-Delivered Medication for Opioid Use Disorder: Qualitative Study With Key Informants

BACKGROUND

Telemedicine-delivered medication for opioid use disorder (TMOUD) has become more prevalent during the COVID-19 pandemic, particularly in North America. This is considered a positive development as TMOUD has the potential to increase access to evidence-based treatment for a population heavily affected by the opioid crisis and consequent rising mortality and morbidity rates in relation to opioid use disorder. Despite the increase in the use of TMOUD, there are no established service- and process-focused models to guide the implementation of this intervention.

OBJECTIVE

This study aims to develop a process- and service-focused implementation model in collaboration with key stakeholders and bring together peer-reviewed literature, practice-based knowledge, and expert opinions.

METHODS

The simple rules for evidence translation in complex systems framework was applied to guide the development of a 6-step qualitative study. The steps were definition of the scope and objectives of the model, identification of evidence, stakeholder engagement, draft model development, key informant consultation, and final model specification.

RESULTS

The final specification for the TMOUD implementation model incorporated key strategic priorities, service delivery prerequisites, service design elements, stakeholder identification and engagement, key process domains, and iterative cycles of evaluation and improvement.

CONCLUSIONS

Through stakeholder engagement and key informant consultation, we produced a process- and service-focused TMOUD implementation model. The model is modifiable to different contexts and settings while also in keeping with the current evidence base and national and international standards of high-quality opioid use disorder care.

Prenatal substance use in the rural and Appalachian state: Project WATCH study 2020-2022

PURPOSE

To examine the prevalence, patterns, and correlates of prenatal substance use in the rural Appalachian state of West Virginia (WV).

METHODS

Population-based cohort (Project WATCH) of all women (N = 34,309) who gave birth between February 2020 and June 2022. A composite substance use variable included 9 categories: "no substance use," "opioids," "cannabis," "sedatives/hypnotics," "stimulants," "opioids and cannabis," "opioids and stimulants," "cannabis and stimulants," and "opioids, cannabis, and stimulants." These data were gathered through self-report, medical records, and/or positive drug screen at labor and delivery.

FINDINGS

12.4% of women used one or more substances (opioids, cannabis, stimulants, and sedatives/hypnotics) during their current pregnancy. The mean age of women using cannabis was 25.34 (SD = 5.31), stimulants was 28.88 (SD = 5.62), and opioid was 30.19 (SD = 4.78). White women were more likely to use opioids (aOR = 2.19, 95% CI 1.46, 3.28) and less likely to use cannabis (aOR = 0.39, 95% CI 0.34, 0.44) compared to minority racial groups. Women with cannabis use were more likely to live in urban versus rural regions (aOR = 1.47, 95% CI 1.33, 1.62). The odds of using any type of substance(s) were significantly higher in women who smoked (aOR range 4.17-30.85), had Medicaid (aOR range 1.52-7.65), and those receiving inadequate prenatal care (aOR range 1.96-16.83).

CONCLUSIONS

In this rural Appalachian state, 1 in 8 women used 1 or more substances (opioids, cannabis, stimulants, and/or sedatives/hypnotics) during pregnancy and the type of substance used varied by sociodemographic and health-related factors. These factors should inform state-level strategies and initiatives to address the substance use crisis for this population.

Interventions to Support Engagement in Addiction Care Postpartum: Principles and Pitfalls

There is a fundamental disconnect between the optimal management of addiction in general and care delivery in pregnancy and postpartum. Addiction is a chronic condition requiring some degree of management across the life course. Yet, in the US, reproductive care is episodic and centers more on pregnancy than at other stages of the reproductive life course. Pregnancy is prioritized in access to insurance as almost all pregnant people are Medicaid eligible but access ends at varying points postpartum. This results in a structural mismatch: the episodic management of the chronic condition of addiction only within gestational periods. Though people with substance use disorder (SUD) may access care in pregnancy, treatment attrition is common postpartum. Postpartum is a time of increased vulnerabilities where insurance churn and newborn caretaking responsibilities collide in a context of care withdrawal from the health system and health providers. In part in consequence, return to use, SUD recurrence, overdose, and overdose death are more common postpartum than in pregnancy, and drug deaths have become a leading cause of maternal deaths in the US. This review addresses interventions to support engagement in addiction care postpartum. We begin with a scoping review of model programs and evidence-informed interventions that have been shown to increase continuation of care postpartum. We then explore the realities of contemporary care through a review of clinical and ethical principles, with particular attention to harm reduction. We conclude with suggestions of strategies (clinical, research, and policy) to improve care postpartum and highlight potential pitfalls in the uptake of evidence-based and person-centered services.

Collaborative care programs for pregnant and postpartum individuals with opioid use disorder: Organizational characteristics of sites participating in the NIDA CTN0080 MOMs study

INTRODUCTION

Pregnant individuals with substance use disorders face complex issues that may serve as barriers to treatment entry and retention. Several professional organizations have established recommendations on comprehensive, collaborative approaches to treatment to meet the needs of this population, but information on real-world application is lacking. Sites participating in the NIDA CTN0080 "Medication treatment for Opioid use disorder in expectant Mothers (MOMs)"-a randomized clinical trial of extended release compared to sublingual buprenorphine among pregnant and postpartum individuals (PPI)-were selected, in part, because they have a collaborative approach to treating PPI with opioid use disorder (OUD). However, organizational differences among sites and how they implement expert recommendations for collaborative care could impact study outcomes.

METHODS

Prior to study launch at each of the 13 MOMs sites, investigators used the Pregnancy and Addiction Services Assessment (PAASA) to collect information about organizational factors. Input from a team of addiction, perinatal, and economic evaluation experts guided the development of the PAASA. Investigators programmed the PAASA into a web-based data system and summarized the resultant site data using descriptive statistics.

RESULTS

Study sites represented four US census regions. Most sites were specialty obstetrics & gynecology (OB/GYN) programs providing OUD services (n = 9, 69.2 %), were affiliated with an academic institution (n = 11, 84.6 %), and prescribed buprenorphine in an ambulatory/outpatient setting (n = 11, 84.6 %); all sites offered access to naloxone. Sites reported that their population was primarily White, utilized public insurance, and faced numerous psychosocial barriers to treatment. Although all sites offered many services recommended by expert consensus groups, they varied in how they coordinated these services.

CONCLUSIONS

By providing the organizational characteristics of sites participating in the MOMs study, this report assists in filling the current gap in knowledge regarding similar programs providing services to PPI with OUD. Collaborative care programs such as those participating in MOMs are uniquely positioned to participate in research to determine the most effective models of care and to determine how research can be integrated into those clinical care settings.

Racial/ethnic differences in medication for addiction treatment for opioid use disorders among pregnant women in treatment facilities supported by state funds

INTRODUCTION

Medication for addiction treatment (MAT) for opioid use disorder (OUD) in pregnant women is known to improve neonatal health outcomes. Despite the benefits of this evidence-based treatment for OUD, MAT has been underutilized during pregnancy among certain racial/ethnic groups of women in the United States. The purpose of this study was to examine racial/ethnic differences and factors that affect MAT administration among pregnant women with OUD seeking treatment at publicly funded facilities.

METHODS

We used data from the 2010-2019 Treatment Episode Data Set system. The analytic sample included 15,777 pregnant women with OUD. We built logistic regression models to examine associations between race/ethnicity and MAT and determine differences and similarities in factors that may influence the use of MAT across racial/ethnic groups of pregnant women with OUD.

RESULTS

Although in this sample only 31.6 % received MAT, an increasing trend of MAT receipt has been observed during 2010-2019. Approximately 44 % of the Hispanic pregnant women received MAT, and this was significantly higher than non-Hispanic Black (27.1 %) and White (31.3 %) women. Even after adjusting for potential confounders, the adjusted odds of receiving MAT during pregnancy were lower for Black (AOR = 0.57, 95 % CI 0.44, 0.75) and White (AOR = 0.75, 95 % CI 0.61, 0.91) women compared to Hispanic women. Not being in the labor force increased the odds of receiving MAT in Hispanic women relative to their employed counterparts while homelessness or dependent living decreased the odds of MAT for White women compared to those living independently. Regardless of their racial/ethnic background, pregnant women younger than 29 years old were less likely to receive MAT relative to older women; however, if they were arrested once prior to admission to treatment, they had significantly higher odds of receiving MAT than those with no arrests. Treatment of at least 7 months was associated with a higher likelihood of MAT across all racial/ethnic groups.

CONCLUSIONS

This study highlights the underutilization of MAT, particularly among pregnant Black and White women who seek treatment for OUD in publicly funded treatment facilities. A multi-dimensional approach to MAT intervention programs is needed to increase MAT for all pregnant women and reduce racial/ethnic inequities.

Opioids and Opioid Use Disorder in Pregnancy

Overdose is a leading cause of pregnancy-associated morbidity and mortality in the United States. As such, all obstetric providers have a responsibility to provide evidence-based care for patients with opioid use disorder to mitigate adverse outcomes associated with substance use during pregnancy.

Harm Reduction Approach to Increasing Self-reported Safe Medication Storage Among Pregnant and Parenting People Receiving Opioid Use Disorder Treatment

OBJECTIVES

The expansion of access to buprenorphine-naloxone (BUP-NAL) for the treatment of opioid use disorder (OUD) is critical to combat the overdose crisis. Evidence is lacking to guide providers on how to best promote BUP-NAL medication safety for their patients. This study assessed (1) the current medication storage practices among a sample of pregnant and parenting people receiving BUP-NAL for OUD; (2) the feasibility and acceptability of providing a lockbox for safe medication storage.

METHODS

Pregnant and/or parenting patients receiving sublingual BUP-NAL in an outpatient OUD clinic were recruited between June and November 2021. Participants completed a baseline survey, received a lockbox, and a follow-up survey 3 to 8 weeks later. The primary outcome of current self-reported safe medication storage practice was defined by storing BUP-NAL in a locked/latched place "almost always" or "always" on the baseline survey. Outcomes were analyzed using simple proportions.

RESULTS

Sixty-three participants completed the baseline survey, and 50 completed the follow-up survey. Baseline survey results indicated that only a quarter of patients (26.6%) were practicing safe BUP-NAL medication storage practices. At follow up, 93.6% of patients were using the lockbox provided by the study, 93.4% reported being satisfied with the lockbox, and most participants (89.3%) reported safe BUP-NAL medication storage practices.

CONCLUSIONS

Many pregnant and parenting patients with OUD receiving BUP-NAL do not store their medications safely. The provision of a lockbox as part of OUD treatment is a feasible, acceptable, and potentially effective harm reduction intervention.

Implementation of State Laws Giving Pregnant People Priority Access to Drug Treatment Programs in the Context of Coexisting Punitive Laws

BACKGROUND

In response to increased prenatal drug use since the 2000s, states have adopted treatment-oriented laws giving pregnant and postpartum people priority access to public drug treatment programs as well as multiple punitive policy responses. No prior studies have systematically characterized these state statutes or examined implementation of state priority access laws in the context of co-existing punitive laws.

METHODS

We conducted legal mapping to examine state priority access laws and their overlap with state laws deeming prenatal drug use to be child maltreatment, mandating reporting of prenatal drug use to child protective services, or criminalizing prenatal drug use. We also conducted interviews with 51 state leaders with expertise on their states' prenatal drug use laws to understand how priority access laws were implemented.

RESULTS

Thirty-three states and the District of Columbia have a priority access law, and more than 80% of these jurisdictions also have one of the punitive prenatal drug use laws described. Leaders reported major barriers to implementing state priority access laws, including the lack of drug treatment programs, stigma, and conflicts with punitive prenatal drug use laws.

CONCLUSIONS

Our results suggest that state laws granting pregnant and postpartum people priority access to drug treatment programs are likely insufficient to significantly increase access to evidence-based drug treatment. Punitive state prenatal drug use laws may counteract priority access laws by impeding treatment seeking. Findings highlight the need to allocate additional resources to drug treatment for pregnant and postpartum people.

Comparative Safety Analysis of Opioid Agonist Treatment in Pregnant Women with Opioid Use Disorder: A Population-Based Study

INTRODUCTION AND OBJECTIVE

Receipt of opioid agonist treatment during early and late pregnancy for opioid use disorder may relate to varying perinatal risks. We aimed to assess the effect of time-varying prenatal exposure to opioid agonist treatment using buprenorphine or methadone on adverse neonatal and pregnancy outcomes.

METHODS

We conducted a retrospective cohort study of pregnant women with opioid use disorder using Rhode Island Medicaid claims data and vital statistics during 2008-16. Time-varying exposure was evaluated in early (0-20 weeks) and late (≥ 21 weeks) pregnancy. Marginal structural models with inverse probability of treatment weighting were applied.

RESULTS

Of 400 eligible pregnancies, 85 and 137 individuals received buprenorphine and methadone, respectively, during early pregnancy. Compared with 152 untreated pregnancies with opioid use disorders, methadone exposure in both periods was associated with an increased risk of preterm birth (adjusted odds ratio [aOR]: 2.52; 95% confidence interval [CI] 1.07-5.95), low birth weight (aOR: 2.99; 95% CI 1.34-6.66), neonatal intensive care unit admission (aOR, 5.04; 95% CI 2.49-10.21), neonatal abstinence syndrome (aOR: 11.36; 95% CI 5.65-22.82), respiratory symptoms (aOR, 2.71; 95% CI 1.17-6.24), and maternal hospital stay > 7 days (aOR, 14.51; 95% CI 7.23-29.12). Similar patterns emerged for buprenorphine regarding neonatal abstinence syndrome (aOR: 10.27; 95% CI 4.91-21.47) and extended maternal hospital stay (aOR: 3.84; 95% CI 1.83-8.07). However, differences were found favoring the use of buprenorphine for preterm birth versus untreated pregnancies (aOR: 0.17; 95% CI 0.04-0.77), and for several outcomes versus methadone.

CONCLUSIONS

Methadone and buprenorphine prescribed for the treatment of opioid use disorder during pregnancy are associated with varying perinatal risks. However, buprenorphine may be preferred in the setting of pregnancy opioid agonist treatment. Further research is necessary to confirm our findings and minimize residual confounding.

Disparities in opioid use disorder-related hospital use among postpartum Virginia Medicaid members

INTRODUCTION

The overdose crisis is increasingly revealing disparities in opioid use disorder (OUD) outcomes by race and ethnicity. Virginia, like other states, has witnessed drastic increases in overdose deaths. However, research has not described how the overdose crisis has impacted pregnant and postpartum Virginians. We report the prevalence of OUD-related hospital use during the first year postpartum among Virginia Medicaid members in the years preceding the COVID-19 pandemic. We secondarily assess how prenatal OUD treatment is associated with postpartum OUD-related hospital use.

METHODS

This population-level retrospective cohort study used Virginia Medicaid claims data for live infant deliveries between July 2016 and June 2019. The primary outcome of OUD-related hospital use included overdose events, emergency department visits, and acute inpatient stays. Independent variables of interest were prenatal receipt of medication for OUD (MOUD) and receipt of non-MOUD treatment components in line with a comprehensive care approach (e.g., case management, behavioral health). Both descriptive and multivariate analyses were performed for all deliveries and stratified by White and Black non-Hispanic individuals to bring attention to the devastating impacts of the overdose crisis within communities of color.

RESULTS

The study sample included 96,649 deliveries. Over a third were by Black birthing individuals (n = 34,283). Prenatally, 2.5 % had evidence of OUD, which occurred more often among White (4 %) than Black (0.8 %) non-Hispanic birthing individuals. Postpartum OUD-related hospital use occurred in 10.7 % of deliveries with OUD, more commonly after deliveries by Black, non-Hispanic birthing individuals with OUD (16.5 %) than their White, non-Hispanic counterparts (9.7 %), and this disparity persisted in the multivariable analysis (Black AOR 1.64, 95 % CI 1.14-2.36). Postpartum OUD-related hospital events were less frequent for individuals receiving versus not receiving postpartum MOUD within 30 days prior to the event. Prenatal OUD treatment, including MOUD, was not associated with decreased odds of postpartum OUD-related hospital use in the race-stratified models.

CONCLUSION

Postpartum individuals with OUD are at high risk for mortality and morbidity, especially Black individuals not receiving MOUD after delivery. An urgent need remains to effectively address the systemic and structural drivers of racial disparities in transitions of OUD care through the one-year postpartum period.

Lessons Learned From the Implementation of an Integrated Prenatal Opioid Use Disorder Program

OBJECTIVE

To evaluate key lessons learned from efforts at increasing engagement in integrated prenatal and opioid use disorder services.

DESIGN

An interdisciplinary team consisting of a board-certified obstetrician and registered nurse led the implementation of this multipronged approach driven by several plan-do-study-act cycles to develop an integrated prenatal and opioid use disorder program.

SETTING/LOCAL PROBLEM

An urban community health center in Chicago, Illinois, where mental health issues, including substance use, are the leading cause of death for pregnant people.

PARTICIPANTS

Connections were made with local harm reduction agencies, substance use treatment facilities, and community outreach programs to develop partnerships with organizations providing existing addiction and maternal-child services in the community.

INTERVENTION/MEASURES

Partnership building was achieved through organization needs assessments, dissemination of information about integrated services, and sustained communication. Referral workflow guides and patient education cards were created and distributed to community partners. Incoming referrals were tracked at the clinic site. Use of the referral materials was evaluated via online surveys distributed to community partners.

RESULTS

In the 18 weeks of enhanced integration, three patients engaged in services and were initiated on medication for opioid use disorder, two of whom had been referred from agencies targeted in the outreach efforts. Surveys showed that community partners believe the referral guides were easy to use and that the harm reduction information on the patient cards was useful.

CONCLUSION

An urban community health center was equipped to provide comprehensive, integrated services to pregnant people with opioid use disorder, but barriers such as community unawareness and stigma impeded engagement. Sustained collaboration with community partners serving pregnant people with opioid use disorder supports program development and linkage to care. Integrated prenatal and opioid use disorder care is feasible, us destigmatizing in nature, and can lead to improved maternal and fetal outcomes.

Access to Medications for Opioid Use Disorder and Associated Factors Among Adolescents and Young Adults: A Systematic Review

IMPORTANCE

The ongoing overdose crisis continues to adversely affect adolescents and young adults (AYAs) and has led to numerous preventable deaths. Medications for opioid use disorder (MOUD), such as methadone, buprenorphine, and naltrexone, have the potential to reduce opioid use and associated harms; however, there are concerns that AYAs lack access to these potentially life-saving medications.

OBJECTIVE

To systematically review peer-reviewed literature on MOUD access and associated factors to synthesize strategies that can improve MOUD access for AYAs who use opioids.

EVIDENCE REVIEW

The MEDLINE, Embase, PsycINFO, CINAHL, Sociological Abstracts, Web of Science, and Global Dissertations & Theses databases were searched from database inception until May 3, 2021. English, French, Russian, or Spanish peer-reviewed studies that evaluated the availability, prescription receipt, or initiation of MOUD were eligible for inclusion.

FINDINGS

This systematic review identified 37 cohort (n = 17), cross-sectional (n = 15), and qualitative (n = 5) studies that accounted for 179 785 AYAs (mean [SD] age, 24.4 [3.9] years; 148 779 [85%] were female; 67 771 [84%] were White) and examined access to methadone (30 studies), buprenorphine (26 studies), and naltrexone (10 studies). Findings reinforce concerns that AYAs were less likely to access MOUD and suggest that adolescents were more likely to receive naltrexone or buprenorphine-naloxone, which have a lower potential for abuse, in comparison with young adults. This review also identified other factors that were associated with MOUD access, including criminal justice involvement, residing in the US South, living in a limited-income area, Black race, and Hispanic or Latino ethnicity, suggesting ways in which treatment services may be improved to increase MOUD access and meet the treatment goals of AYAs.

CONCLUSION AND RELEVANCE

This systematic review found gaps in MOUD access between AYAs and non-AYA populations in addition to differences in MOUD access between adolescents and young adults. Considering that existing clinical guidelines recommend the use of MOUD among AYAs, and in light of the increasing number of opioid toxicity deaths, there is a need to improve MOUD access among AYAs by reducing barriers to MOUD and providing AYAs with a continuum of health and social supports alongside MOUD. Future research into ways to encourage MOUD uptake among AYAs may improve the treatment and health outcomes for this population.

Use of Medication for Opioid Use Disorder Among US Adolescents and Adults With Need for Opioid Treatment, 2019

IMPORTANCE

Medication for opioid use disorder (MOUD) is the criterion standard treatment for opioid use disorder (OUD), but nationally representative studies of MOUD use in the US are lacking.

OBJECTIVE

To estimate MOUD use rates and identify associations between MOUD and individual characteristics among people who may have needed treatment for OUD.

DESIGN, SETTING, AND PARTICIPANTS

Cross-sectional, nationally representative study using the 2019 National Survey on Drug Use and Health in the US. Participants included community-based, noninstitutionalized adolescent and adult respondents identified as individuals who may benefit from MOUD, defined as (1) meeting criteria for a past-year OUD, (2) reporting past-year MOUD use, or (3) receiving past-year specialty treatment for opioid use in the last or current treatment episode.

MAIN OUTCOMES AND MEASURES

The main outcomes were treatment with MOUD compared with non-MOUD services and no treatment. Associations with sociodemographic characteristics (eg, age, race and ethnicity, sex, income, and urbanicity); substance use disorders; and past-year health care or criminal legal system contacts were analyzed. Multinomial logistic regression was used to compare characteristics of people receiving MOUD with those receiving non-MOUD services or no treatment. Models accounted for predisposing, enabling, and need characteristics.

RESULTS

In the weighted sample of 2 206 169 people who may have needed OUD treatment (55.5% male; 8.0% Hispanic; 9.9% non-Hispanic Black; 74.6% non-Hispanic White; and 7.5% categorized as non-Hispanic other, with other including 2.7% Asian, 0.9% Native American or Alaska Native, 0.2% Native Hawaiian or Pacific Islander, and 3.8% multiracial), 55.1% were aged 35 years or older, 53.7% were publicly insured, 52.2% lived in a large metropolitan area, 56.8% had past-year prescription OUD, and 80.0% had 1 or more co-occurring substance use disorders (percentages are weighted). Only 27.8% of people needing OUD treatment received MOUD in the past year. Notably, no adolescents (aged 12-17 years) and only 13.2% of adults 50 years and older reported past-year MOUD use. Among adults, the likelihood of past-year MOUD receipt vs no treatment was lower for people aged 50 years and older vs 18 to 25 years (adjusted relative risk ratio [aRRR], 0.14; 95% CI, 0.05-0.41) or with middle or higher income (eg, $50 000-$74 999 vs $0-$19 999; aRRR, 0.18; 95% CI, 0.07-0.44). Compared with receiving non-MOUD services, receipt of MOUD was more likely among adults with at least some college (vs high school or less; aRRR, 2.94; 95% CI, 1.33-6.51) and less likely in small metropolitan areas (vs large metropolitan areas, aRRR, 0.41; 95% CI, 0.19-0.93). While contacts with the health care system (85.0%) and criminal legal system (60.5%) were common, most people encountering these systems did not report receiving MOUD (29.5% and 39.1%, respectively).

CONCLUSIONS AND RELEVANCE

In this cross-sectional study, MOUD uptake was low among people who could have benefited from treatment, especially adolescents and older adults. The high prevalence of health care and criminal legal system contacts suggests that there are critical gaps in care delivery or linkage and that cross-system integrated interventions are warranted.

Management of infective endocarditis in pregnancy by a multidisciplinary team: a case series

Introduction:

The incidence of infective endocarditis (IE) in pregnancy is rare and has been increasing during the opioid epidemic. IE in pregnancy is associated with high rates of maternal and fetal morbidity and mortality. Multidisciplinary endocarditis teams for management of IE have been shown to reduce in-hospital and 1-year mortality. We present a single-center experience managing IE in pregnancy utilizing a multidisciplinary endocarditis team.

Methods:

Patients diagnosed with IE while pregnant or within 30 days post-partum were identified. All patients discussed at the institution’s weekly multidisciplinary endocarditis meeting were included. Demographic and clinical data and outcome-related variables were retrospectively reviewed and recorded.

Results:

Between 1 October 2020 and 1 June 2021 6 pregnant or 30-day post-partum patients with IE were identified. All patients had co-morbid injection drug use; Staphylococcus aureus was the etiologic pathogen in all patients. All patients had embolic complications and 5 required ICU admission and mechanical ventilatory support. Four patients underwent valve replacement. There were no patient-directed discharges. All patients survived to hospital discharge and 90-days after diagnosis. Four pregnancies resulted in delivery at an average gestational age of 32.4 weeks with 3 requiring NICU admissions and prolonged lengths of stay. All patients were seen by addiction medicine and 5 were started on medication-assisted treatment for opioid use disorder.

Discussion:

In a small retrospective cases series, coordination of care by a multidisciplinary endocarditis team led to a high-rate of surgical intervention with no patient-directed discharges and no in-hospital or 90-day mortality.

Conclusion:

Multidisciplinary endocarditis teams are a low-risk intervention that may improve outcomes in pregnant patients with IE.

Explaining Racial-ethnic Disparities in the Receipt of Medication for Opioid Use Disorder during Pregnancy

OBJECTIVE

Factors contributing to racial and ethnic disparities in medication for opioid use disorder (MOUD) receipt during pregnancy are largely unknown. We quantified the contribution of individual, healthcare access and quality, and community factors to racial-ethnic disparities in MOUD during pregnancy and postpartum among Medicaid-enrolled pregnant women with opioid use disorder (OUD).

METHODS

This retrospective cohort study used regression and nonlinear decomposition to examine how individual, healthcare access and quality, and community factors explain racial-ethnic disparities in MOUD receipt among Medicaid-enrolled women with OUD who had a live birth from 2011 to 2017. The exposure was self-reported race and ethnicity. The outcomes were any MOUD receipt during pregnancy or postpartum. All factors included were identified from the literature.

RESULTS

Racial-ethnic disparities in individual, healthcare access and quality, and community factors explained 15.8% of the racial-ethnic disparity in MOUD receipt during pregnancy and 68.9% of the disparity in the postpartum period. Despite comparable healthcare utilization, non-White/Hispanic women were diagnosed with OUD 37 days later in pregnancy, on average, than non-Hispanic White women, which was the largest contributor to the racial-ethnic disparity in MOUD receipt during pregnancy (111.0%). The racial-ethnic disparity in MOUD receipt during pregnancy was the largest contributor (112.2%) to the racial-ethnic disparity in MOUD in the postpartum period.

CONCLUSIONS

Later diagnosis of OUD in pregnancy among non-White/Hispanic women partially explains the disparities in MOUD receipt in this population. Universal substance use screening earlier in pregnancy, combined with connecting patients to evidence-based and culturally competent care, is one approach that could close the observed racial-ethnic disparity in MOUD receipt.

Medication for Addiction Treatment and Postpartum Health Care Utilization Among Pregnant Persons With Opioid Use Disorder

OBJECTIVE

To estimate treatment and postpartum health care utilization among pregnant persons with opioid use disorder (OUD) in Vermont and Maine.

METHODS

Vermont's and Maine's All Payer Claims Databases were used to identify deliveries 2010 to 2018 that were paid for, in part, by Medicaid. OUD was identified among pregnant persons if they had any claim with an OUD-diagnosis code (ICD-9/10) or medication for addiction treatment (MAT) code during the 5 months before delivery event. Consistent and inconsistent MAT were compared to no MAT on the rate of hospitalizations and emergency department (ED) visits in the first 12 months' postpartum using negative binomial regression.

RESULTS

From 2010 through 2018, 27,652 deliveries in Vermont and 43,480 deliveries in Maine were among persons insured by Medicaid. The prevalence of OUD among pregnant persons increased from 6.7% to 11.6% in Vermont and from 7.4% to 11.0% in Maine. Among pregnant persons with OUD in 2018, 57% had consistent MAT in Vermont and 50% had consistent MAT in Maine; approximately 32% and 27% were not in treatment in Vermont and Maine, respectively. In Maine, consistent MAT was associated with a 47% lower rate of hospitalization and 37% to 46% lower rates of ED visits when compared to those without MAT; in Vermont, those with consistent buprenorphine treatment had a 30% lower rate of ED visits.

CONCLUSIONS

Medicaid data from Vermont and Maine suggests that medication for addiction treatment for opioid use disorder during pregnancy reduces emergency health care utilization in the first year postpartum.

Assessing the Impact of Prenatal Medication for Opioid Use Disorder on Discharge Home With Parents Among Infants With Neonatal Opioid Withdrawal Syndrome

OBJECTIVES

The number of women with opioid-related diagnoses in the United States has significantly increased in recent decades, resulting in concomitantly higher rates of infants born with neonatal opioid withdrawal syndrome (NOWS). Addressing prenatal opioid exposure is a priority for Alaska health systems. The objectives of this study were to: (1) identify maternal and neonatal factors associated with receipt of Medication for opioid use disorder (MOUD) and (2) determine the impact of prenatal MOUD on discharge to parents among infants with NOWS in 3 Alaska hospitals.

METHODS

A retrospective chart review using a standard abstraction form was conducted to collect data on neonatal and maternal characteristics, neonatal treatment, and infant discharge disposition for infants with NOWS born at the 3 hospitals between July 2016 and December 2019. A multivariable logistic regression model was used to determine factors associated with discharge to parents.

RESULTS

There were 10,719 births at the 3 hospitals during the study period, including 193 infants (1.8%) with NOWS. Among the 193 mothers, 91 (47.2%) received MOUD during pregnancy. Among infants with NOWS, 136 (70.5%) were discharged to parents, 51 (26.4%) were discharged to a relative or foster care. Infants were significantly (odds ratio 3.9) more likely to be discharged to parents if the mother had received prenatal MOUD.

CONCLUSIONS

MOUD among pregnant women with opioid use disorder furthers the goal of keeping families together and is a critical step towards reducing the impact of the ongoing opioid epidemic on Alaska families, communities, and the child welfare system.

Peripartum and Postpartum Analgesia and Pain in Women Prescribed Buprenorphine for Opioid Use Disorder Who Deliver by Cesarean Section

Aim:

Little is known about whether pain can be effectively managed in pregnant women with opioid use disorder (OUD) during delivery hospitalization, particularly those undergoing surgery and taking buprenorphine as medication for OUD (MOUD). To address this question, we compared pain scores and opioid analgesic utilization during delivery hospitalization in women taking their pre-hospital dose of buprenorphine who delivered by cesarean section to matched controls. To inform future research efforts, we also began to explore opioid analgesic utilization and pain scores by type of anesthesia as this variable is often not included in related literature.

Methods:

Retrospective matched cohort study of 46 women prescribed buprenorphine during pregnancy who delivered by cesarean section during a 7-year period.

Results:

When compared to matched controls, women taking their pre-hospital dose of buprenorphine undergoing cesarean section utilized more opioid analgesics as measured by morphine milligram equivalents (MME) (mean MME first 48 hours 153.0 mg vs 175.1 mg, respectively, P < .01) but had similar pain scores during delivery hospitalization. There was no difference in MME utilization by maternal dose of buprenorphine though sample sizes were small. Women on buprenorphine who received spinal anesthesia with morphine had mean pain scores that were 1.4 points lower ( P = .01) during the first 48 hours than women on buprenorphine receiving other methods of anesthesia.

Discussion And Conclusions:

Pregnant women taking their pre-hospital dose of buprenorphine throughout their surgical delivery hospitalization were able to achieve pain relief similar to women not on MOUD but had higher MME requirements. Our results add to the emerging body of evidence suggesting that individuals on MOUD can achieve adequate post-surgical pain management without adjusting their pre-hospital dose of buprenorphine. Further research is required to fully understand the optimal buprenorphine dosing regimen during surgical hospitalizations. Our results also provide important preliminary evidence that spinal anesthesia containing opioids can be used effectively in individuals with OUD requiring surgical intervention.

Spatial and Nonspatial Factors Associated with Access to Medication for Opioid Use Disorder among Pregnant Women in Massachusetts

INTRODUCTION

In Massachusetts, one-third of pregnant women with opioid use disorder (OUD) do not receive medications for OUD (MOUD), such as buprenorphine and methadone. Research has demonstrated that broadly, access to medications differs by location and by socioeconomic and geographic characteristics of communities, but a comprehensive understanding at the micro-level is lacking. This study aims to identify and characterize access to MOUD treatment among pregnant women in Massachusetts.

METHODS

We used enhanced two-step floating catchment area analyses, which incorporated supply and demand measures, as well as local drive-time, to determine spatial accessibility to MOUD. We used four publicly available data sources to calculate geographic accessibility to MOUD. We then merged the resulting accessibility indices with data from the American Community Survey to statistically analyze ZIP Code Tabulation Area (ZCTA) characteristics that were associated with geographic accessibility to MOUD among the study population.

RESULTS

We calculated access to 258 opioid (methadone and/or buprenorphine) treatment programs and 2,585 buprenorphine-waivered prescribers among 74,969 pregnant women during the period 2016-2020 in 448 ZCTAs (N = 537 ZCTAs). ZCTAs with lower accessibility to both types of MOUD were concentrated in Western Massachusetts. Central Massachusetts had poor accessibility to buprenorphine providers. Accessibility was greater in ZCTAs that were nonmetropolitan, that had higher minority status and langauge vulnerability, and that had less extreme concentration of privilege.

CONCLUSIONS

There is a need to improve MOUD access overall, and to enhance access to both types of medications, so pregnant women can choose the one that works best for them.

Integrated vs nonintegrated treatment for perinatal opioid use disorder: retrospective cohort study

BACKGROUND

Pregnant women with opioid use disorder and their infants often experience worse perinatal outcomes than women without opioid use disorder, including longer hospitalizations after delivery and a higher risk for preterm delivery. Integrated treatment models, which combine addiction treatment and maternity care, represent an innovative approach that is widely endorsed, however, limited studies have compared the outcomes between integrated and standard, nonintegrated programs from real-world programs.

OBJECTIVE

This study aimed to evaluate the perinatal and substance use outcomes for pregnant women with opioid use disorder receiving coordinated, colocated obstetrical care and opioid use disorder treatment (integrated treatment) and to compare it with those of women receiving obstetrical care and opioid use disorder treatment in distinct programs of care (nonintegrated treatment).

STUDY DESIGN

In this observational, retrospective cohort study, we abstracted the perinatal and opioid use disorder treatment data from the records of pregnant women with opioid use disorder (n=225) who delivered at a rural, academic medical center from 2015 to 2017. The women either received integrated (n=92) or nonintegrated (n=133) opioid use disorder treatment and obstetrical care. Using inverse probability weighted regression models to adjust for a potential covariate imbalance, we evaluated the impact of the treatment model on the risk for preterm delivery and positive meconium or umbilical cord toxicology screens. We explored whether the number of obstetrical visits mediated this relationship by using a quasi-Bayesian Monte Carlo algorithm.

RESULTS

Women receiving integrated treatment were less likely to deliver prematurely (11.8% vs 26.6%; P<.001) and their infants had shorter hospitalizations (6.5±4.8 vs 10.7±16.2 days). Using a robust inverse probability weighted model showed that receiving integrated treatment was associated with a 74.7% decrease in the predicted probability of preterm delivery (average treatment effect, -0.19; standard error, 0.14; P<.001). There were no differences in the risk for a positive meconium or umbilical cord toxicology screen, a marker for second and third trimester substance use, between women receiving integrated treatment and those receiving coordinated treatment (29.4% vs 34.6%; P=.41), however, integrated treatment was associated with significantly lower rates of positive maternal urine toxicology screens at the time of delivery (35.9% vs 74.4%; P<.001).

CONCLUSION

Among a cohort of rural pregnant women with opioid use disorder, receiving integrated obstetrical care and opioid use disorder treatment was associated with a reduced risk for preterm birth, a lower risk for positive maternal urine toxicology screen at the time of delivery, and shorter infant hospitalization. This relationship was mediated by the number of obstetrical visits attended during pregnancy, suggesting that increased engagement with obstetrical care through integration of services may contribute to improved perinatal outcomes.

Non-pharmacologic interventions to improve depression and anxiety among pregnant and parenting women who use substances: An integrative literature review

Pregnant and parenting women who use substances report high rates of comorbid depression and anxiety. Due to the significant impact of this comorbidity on treatment adherence and maternal/child outcomes, effective psychosocial and behavioral interventions to address depression and anxiety in this population are necessary. A directed search of PubMed, PsycINFO, and CINAHL databases produced 22 articles from 20 distinct studies examining non-pharmacologic interventions with an effect on depression and anxiety among pregnant or parenting women using substances. Of the 20 studies reviewed, 8 were randomized controlled trials, 7 were quasi-experimental studies, and 5 were cohort studies. Results revealed a wide array of interventions targeting intrapersonal, interpersonal, and/or structural factors within these women's lives. Parenting therapy and psychosocially enhanced treatment programs had the strongest evidence for positive treatment effect in improving symptoms of depression and anxiety. The use of contingency-management, case-managed care, patient or wellness navigators, mindfulness-based therapy, maternal-child relationship-focused therapy, family therapy, peer support, and therapeutic community-based interventions show promise but warrant further experimental exploration. Comprehensive and gender-specific residential treatment was observationally associated with improvements in depression and anxiety; however, the specific modality of efficacy is unclear. Future research should focus on identifying which modalities are most cost-effective, feasible, and acceptable among this uniquely vulnerable population.

Estimating the impact on initiating medications for opioid use disorder of state policies expanding Medicaid and prohibiting substance use during pregnancy

BACKGROUND

Medicaid expansion increased access to addiction treatment services for pregnant women. However, states' imposition of civil or criminal child abuse sanctions for drug use during pregnancy could inhibit access to treatment. We estimated the effects of Medicaid expansion on pregnant women's medications for opioid use disorder (MOUD) use, and its interaction with statutes that prohibit substance use during pregnancy.

METHODS

Using the Treatment Episode Dataset for Discharge (2010-2018), we identified the initial treatment episode of pregnant women with opioid use disorder (OUD). We described changes in MOUD use and estimated adjusted difference-in-differences and event study models to evaluate differences in changes in MOUD between states that prohibit substance use during pregnancy and states that do not.

FINDINGS

Among a total of 16,070 treatment episodes for pregnant women with OUD from 2010 to 2018, most (74%) were in states that expanded Medicaid. By one year post-expansion, the proportion of episodes receiving MOUD in states not prohibit substance use during pregnancy increased by 8.7% points (95% CI: 2.7, 14.7) from the pre-expansion period compared to a 5.6% point increase in states prohibiting substance use during pregnancy (95% CI: -3.3, 14.8). In adjusted event study analysis, the expansion was associated with an increase in MOUD use by 15.3% by year 2 in states not prohibiting versus 1.5% percentage points in states prohibiting substance use during pregnancy, respectively.

CONCLUSIONS

State policies prohibiting substance use during pregnancy may limit the salutary effects of Medicaid expansion for pregnant women who could benefit from MOUD treatment.

Co-occurring Substance Use Disorders Identified Among Delivery Hospitalizations in the United States

OBJECTIVES

Substance use in pregnancy is increasing in the United States (US), although little is know about co-occurring substance use disorders in pregnancy. Our objective was to determine the prevalence and patterns of co-occurring substance use disorders identified at delivery hospitalizations among US women.

METHODS

Using data from the National Inpatient Sample, a nationally representative sample of hospitalizations in the US, we identified females ages 15 to 44 years with a delivery hospitalization from 2007 to 2016 (weighted N = 38 million). We identified diagnoses for use of any of the following substance use disorders: alcohol, amphetamines, cannabis, cocaine, opioids, sedatives, or tobacco. Using multivariable regression, we calculated the weighted adjusted prevalence of additional substances used within each specific substance use disorder category.

RESULTS

Seven percent of women were diagnosed with any substance use disorder at delivery hospitalization (6.5% tobacco, 1% cannabis, 0.5% opioids, and <1% amphetamines, alcohol, cocaine, and sedatives). Among those with any substance use disorder diagnosis, the adjusted prevalence of any co-occurring use disorder was greatest for those who used alcohol (69%), cocaine (69%), amphetamines (63%), and opioids (62%). Among pregnant women who were diagnosed with cocaine, amphetamines, alcohol or opioid use disorder, tobacco (>45% in all groups), and cannabis (>10% in all groups) were the most common additional substances used. Tobacco and cannabis use disorders were commonly diagnosed together.

CONCLUSIONS

Co-occurring substance use disorders are common among women with any substance use disorder in pregnancy. Findings support the need for public health efforts to monitor and address multiple, concurrent use of substances in pregnancy.

Methadone and buprenorphine discontinuation among postpartum women with opioid use disorder

BACKGROUND

The postpartum year is a vulnerable period for women with opioid use disorder, with increased rates of fatal and nonfatal overdose; however, data on the continuation of medications for opioid use disorder on a population level are limited.

OBJECTIVE

This study aimed to examine the effect of discontinuing methadone and buprenorphine in women with opioid use disorder in the year following delivery and determine the extent to which maternal and infant characteristics are associated with time to discontinuation of medications for opioid use disorder.

STUDY DESIGN

This population-based retrospective cohort study used linked administrative data of 211,096 deliveries in Massachusetts between 2011 and 2014 to examine the adherence to medications for opioid use disorder. Individuals receiving medications for opioid use disorder after delivery were included in the study. Here, demographic, psychosocial, prenatal, and delivery characteristics are described. Kaplan-Meier survival analysis and Cox regression modeling were used to examine factors associated with medication discontinuation.

RESULTS

A total of 2314 women who received medications for opioid use disorder at delivery were included in our study. Overall, 1484 women (64.1%) continued receiving medications for opioid use disorder for a full 12 months following delivery. The rate of continued medication use varied from 34% if women started on medications for opioid use disorder the month before delivery to 80% if the medications were used throughout pregnancy. Kaplan-Meier survival curves differed by maternal race and ethnicity (the 12-month continuation probability was .65 for White non-Hispanic women and .51 for non-White women; P<.001) and duration of use of prenatal medications for opioid use disorder (12-month continuation probability was .78 for women with full prenatal engagement and .60 and .44 for those receiving medications for opioid use disorder ≥5 months [but not throughout pregnancy] and ≤4 months prenatally, respectively; P<.001). In all multivariable models, duration of receipt of prenatal medications for opioid use disorder (≤4 months vs throughout pregnancy: adjusted hazard ratio, 3.26; 95% confidence interval, 2.72-3.91) and incarceration (incarceration during pregnancy or after delivery vs none: adjusted hazard ratio, 1.79; 95% confidence interval, 1.52-2.12) were most strongly associated with the discontinuation of medications for opioid use disorder.

CONCLUSION

Almost two-thirds of women with opioid use disorder continued using medications for opioid use disorder for a full year after delivery; however, the rates of medication continuation varied significantly by race and ethnicity, degree of use of prenatal medications for opioid use disorder, and incarceration status. Prioritizing medication continuation across the perinatal continuum, enhancing sex-specific and family-friendly recovery supports, and expanding access to medications for opioid use disorder despite being incarcerated can help improve postpartum medication adherence.

A Low-threshold Comprehensive Shared Medical Appointment Program for Perinatal Substance Use in an Underserved Population

OBJECTIVES

We describe retention in care, medication for opioid use disorder (MOUD) prescribing, and urine toxicology outcomes of a comprehensive perinatal shared medical appointment model that combined medication, group-based counseling, and recovery supports.

METHODS

We conducted a retrospective study of program retention between 11/1/16 and 3/31/20 in pregnant and postpartum women with substance dependence or use disorder. Disengagement reasons, MOUD prescribing, and urine toxicology were abstracted from medical records. A Cox proportional hazards model was used to evaluate risk factors for program disengagement.

RESULTS

Approximately 87% of patients had OUD and 80% were pregnant at the initial visit (N = 140). Retention at 3 months, 6 months, 1 year, and 2 years was approximately 86%, 78%, 66%, and 48%, respectively. Over 97% of patients were prescribed MOUD and 88% of all urine toxicology results were negative for non-prescribed opioids. Patients enrolled after initiation of wraparound services (HR 0.52, 95% CI 0.28-0.96) and those attending more shared medical appointments (HR 0.90, 95% CI 0.87-0.93) had a lower hazard of disengagement after controlling for other covariates. Loss to follow-up was the most common disengagement reason.

CONCLUSIONS

A low-threshold, comprehensive perinatal shared medical appointment program had high retention rates, increased access to evidence-based MOUD, and high rates of opioid-negative urine toxicology. Participants enrolled after wraparound services began had a lower hazard of disengagement. Future research in perinatal substance use should evaluate the most optimal and cost-effective components of comprehensive programs to inform standard of care.

Women-centered drug treatment models for pregnant women with opioid use disorder: A scoping review

BACKGROUND

While there is a high unmet need for drug treatment services tailored to the needs of pregnant women, fewer than half of the opioid use disorder (OUD) treatment programs in the U.S. offer such services. We conducted a scoping review of the literature to identify women-centered drug treatment models that address access, coordination, and quality of care, and their facilitators and barriers.

METHODS

We searched PubMed, EMBASE, PsycInfo, Sociology Database, Web of Science, CINAHL, EBSCO Open Dissertations, Health Services Research Projects in Progress, and relevant agency websites from 1990 to 2020. We included studies that evaluated multicomponent models of care that provided medication for OUD (MOUD) to pregnant women in the U.S.

RESULTS

Of the 1,578 unduplicated articles screened, 26 articles met the inclusion criteria, which reported on 19 different studies and included 3,193 women. We identified seven different models of care and found that: (1) access was improved by co-locating various services for drug treatment and care, (2) coordination was enhanced by inter-professional collaboration, (3) quality was improved by treating pregnant patients in groups, and (4) stigmatization and criminalization of substance use during pregnancy was a significant barrier to care.

CONCLUSIONS

There is an urgent need to bolster patient-provider relationships that are built on trust, are free of stigma, and that empower patients to make their own decisions. Improved policies and regulations to reduce stigma around the use of opioids and MOUD are needed, so that pregnant women with OUD can access high quality care.

Predictors of Initiation of Medication for Opioid Use Disorder and Retention in Treatment Among U.S. Pregnant Women, 2013-2017

OBJECTIVE

To describe trends and factors associated with medication administration for opioid use disorder (OUD) and retention in treatment among pregnant women with OUD.

METHODS

This is a retrospective, nationwide, cross-sectional analysis of treatment episodes for primary OUD among pregnant women from 2013 to 2017. The primary outcome was initiation of methadone, buprenorphine, or naltrexone. Secondary outcomes were retention in treatment defined as length of treatment episode lasting six months or greater, and completion of treatment. Descriptive statistics and logistic regression were applied to describe trends in, and identify factors associated with the outcomes.

RESULTS

There were 42,239 treatment episodes for primary OUD among pregnant women who reported using heroin (65.0%, 27,459), synthetic opioid (33.2%, 14,034), or nonprescribed methadone (1.8%, 746) between 2013 and 2017. Medications for OUD were administered in 47.4% (20,013) of episodes. Retention in treatment occurred in 16.6% of episodes without medications for OUD, and 37.8% of episodes with medications for OUD (P=.01). The rate of medication administration for OUD increased from 41.0% in 2013 to 52.0% in 2017; however, retention rates declined from 39.0% to 33.0% among treatment episodes with medication for OUD. History of at least one prior treatment episode was associated with both administration of medications for OUD and retention in treatment.

CONCLUSION

In spite of current guidelines, most treatment episodes for OUD during pregnancy did not involve administration of medications for OUD. Although administration of medications for OUD has improved over time, retention in treatment is lagging. These findings highlight gaps in the U.S. addiction care system.

Endogenous opiates and behavior: 2019

This paper is the forty-second consecutive installment of the annual anthological review of research concerning the endogenous opioid system, summarizing articles published during 2019 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides and receptors as well as effects of opioid/opiate agonists and antagonists. The review is subdivided into the following specific topics: molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors (1), the roles of these opioid peptides and receptors in pain and analgesia in animals (2) and humans (3), opioid-sensitive and opioid-insensitive effects of nonopioid analgesics (4), opioid peptide and receptor involvement in tolerance and dependence (5), stress and social status (6), learning and memory (7), eating and drinking (8), drug abuse and alcohol (9), sexual activity and hormones, pregnancy, development and endocrinology (10), mental illness and mood (11), seizures and neurologic disorders (12), electrical-related activity and neurophysiology (13), general activity and locomotion (14), gastrointestinal, renal and hepatic functions (15), cardiovascular responses (16), respiration and thermoregulation (17), and immunological responses (18).

The influence of social relationships on substance use behaviors among pregnant women with opioid use disorder

OBJECTIVE

To describe the social network characteristics of pregnant women with opioid use disorder (OUD) and explore how changes in social relationships during pregnancy may influence substance use behaviors.

METHODS

Between 2017 and 2018, we conducted an exploratory pilot study among 50 pregnant women with OUD. Participants completed a detailed social network inventory to describe the behaviors (e.g. substance-using), social support characteristics (e.g. financial, emotional, informational) and roles (e.g. family member, friend) of network members. The primary outcome was a self-reported decrease in substance use during pregnancy. Pearson correlations were used to test for associations between covariates reflecting different aspects of participants' social networks and decreased substance use during pregnancy.

RESULTS

Most participants (84.0 %) decreased substance use during pregnancy and stated that pregnancy motivated them to engage in treatment (94.0 %). Participants had a median of 8 (IQR: 4-18) network members with differing proportions of those who did and did not use substances. Pregnancy prompted participants to significantly increase contact with (26.4 % vs. 5.0 %), have increased support from (35.7 % vs. 7.5 %), and a have a feeling of increased closeness with (26.1 % vs. 3.3 %) network members who did not use substances. However, decreased substance use during pregnancy was most strongly (negatively) associated with the proportion of network members who used substances and provided informational support (r=-0.25, p = 0.08) and a feeling of closeness (r=-0.26, p = 0.08).

CONCLUSIONS

Our findings indicate that pregnancy has a profound influence on women's substance use behaviors and that changes in social relationships due to pregnancy may influence substance use.

Opioid prescription claims among women aged 15-44 years-United States, 2013-2017

OBJECTIVE

To estimate the annual percentage of women of reproductive age with private insurance or Medicaid who had opioid prescription claims during 2013-2017 and describe trends over time.

DESIGN

A secondary analysis of insurance claims data from IBM MarketScan® Commercial and Multi-State Medicaid Databases to assess outpatient pharmacy claims for prescription opioids among women aged 15-44 years during 2013-2017.

PARTICIPANTS

Annual cohorts of 3.5-3.8 million women aged 15-44 years with private insurance and 0.9-2.1 million women enrolled in Medicaid.

MAIN OUTCOME MEASURE

The percentage of women aged 15-44 years with outpatient pharmacy claims for opioid prescriptions.

RESULTS

During 2013-2017, the proportion of women aged 15-44 years with private insurance who had claims for opioid prescriptions decreased by 22.1 percent, and among women enrolled in Medicaid, the proportion decreased by 31.5 -percent.

CONCLUSIONS

Opioid prescription claims decreased from 2013 to 2017 among insured women of reproductive age. However, opioid prescription claims remained common and were more common among women enrolled in Medicaid than those with private insurance; additional strategies to improve awareness of the risks associated with opioid prescribing may be needed.

Healthcare Patterns of Pregnant Women and Children Affected by OUD in 9 State Medicaid Populations

OBJECTIVES

State Medicaid programs are the largest single provider of healthcare for pregnant persons with opioid use disorder (OUD). Our objective was to provide comparable, multistate measures estimating the burden of OUD in pregnancy, medication for OUD (MOUD) in pregnancy, and related neonatal and child outcomes.

METHODS

Drawing on the Medicaid Outcomes Distributed Research Network (MODRN), we accessed administrative healthcare data for 1.6 million pregnancies and 1.3 million live births in 9 state Medicaid populations from 2014 to 2017. We analyzed within- and between-state prevalences and time trends in the following outcomes: diagnosis of OUD in pregnancy, initiation, and continuity of MOUD in pregnancy, Neonatal Opioid Withdrawal Syndrome (NOWS), and well-child visit utilization among children with NOWS.

RESULTS

OUD diagnosis increased from 49.6 per 1000 to 54.1 per 1000 pregnancies, and the percentage of those with any MOUD in pregnancy increased from 53.4% to 57.9%, during our study time period. State-specific percentages of 180-day continuity of MOUD ranged from 41.2% to 84.5%. The rate of neonates diagnosed with NOWS increased from 32.7 to 37.0 per 1000 live births. State-specific percentages of children diagnosed with NOWS who had the recommended well-child visits in the first 15 months ranged from 39.3% to 62.5%.

CONCLUSIONS

Medicaid data, which allow for longitudinal surveillance of care across different settings, can be used to monitor OUD and related pregnancy and child health outcomes. Findings highlight the need for public health efforts to improve care for pregnant persons and children affected by OUD.

Identification of Prenatal Opioid Exposure Within Health Administrative Databases

BACKGROUND

Health administrative data offer a vital source of data on maternal prenatal opioid exposure (POE). The impact of different methods to estimate POE, especially combining maternal and newborn records, is not known.

METHODS

This population-based cross-sectional study included 454 746 hospital births with linked administrative data in Ontario, Canada, in 2014-2017. POE ascertainment included 3 sources: (1) prenatal opioid prescriptions, (2) maternal opioid-related hospital records, and (3) newborn hospital records with neonatal abstinence syndrome (NAS). Positive percent agreement was calculated comparing cases identified by source, and a comprehensive method was developed combining all 3 sources. We replicated common definitions of POE and NAS from existing literature and compared both number of cases ascertained and maternal socio-demographics and medical history using the comprehensive method.

RESULTS

Using all 3 data sources, there were 9624 cases with POE (21.2 per 1000 births). Among these, positive percent agreement (95% confidence interval) was 79.0% (78.2-79.8) for prenatal opioid prescriptions, 19.0% (18.2-19.8) for maternal opioid-related hospital records, and 44.7% (43.7-45.7) for newborn NAS. Compared with other definitions, our comprehensive method identified up to 523% additional cases. Contrasting ascertainment with maternal opioid-related hospital records, newborn NAS, and prenatal opioid prescriptions respective rates of maternal low income were 57%, 48%, and 39%; mental health hospitalization history was 33%, 28%, and 17%; and infant discharge to social services was 8%, 13%, and 5%.

CONCLUSIONS

Combining prenatal opioid prescriptions and maternal and newborn opioid-related hospital codes improves identification of a broader population of mothers and infants with POE.

Racial and Ethnic Disparities in Maternal and Infant Outcomes Among Opioid-Exposed Mother-Infant Dyads in Massachusetts (2017-2019)

Objectives. To examine the extent to which differences in medication for opioid use disorder (MOUD) in pregnancy and infant neonatal opioid withdrawal syndrome (NOWS) outcomes are associated with maternal race/ethnicity.Methods. We performed a secondary analysis of a statewide quality improvement database of opioid-exposed deliveries from January 2017 to April 2019 from 24 hospitals in Massachusetts. We used multivariable mixed-effects logistic regression to model the association between maternal race/ethnicity (non-Hispanic White, non-Hispanic Black, or Hispanic) and prenatal receipt of MOUD, NOWS severity, early intervention referral, and biological parental custody at discharge.Results. Among 1710 deliveries to women with opioid use disorder, 89.3% (n = 1527) were non-Hispanic White. In adjusted models, non-Hispanic Black women (AOR = 0.34; 95% confidence interval [CI] = 0.18, 0.66) and Hispanic women (AOR = 0.43; 95% CI = 0.27, 0.68) were less likely to receive MOUD during pregnancy compared with non-Hispanic White women. We found no statistically significant associations between maternal race/ethnicity and infant outcomes.Conclusions. We identified significant racial/ethnic differences in MOUD prenatal receipt that persisted in adjusted models. Research should focus on the perspectives and treatment experiences of non-Hispanic Black and Hispanic women to ensure equitable care for all mother-infant dyads.

Prevalence and Geographic Distribution of Obstetrician-Gynecologists Who Treat Medicaid Enrollees and Are Trained to Prescribe Buprenorphine

IMPORTANCE

The incidence of opioid use during pregnancy is increasing, and drug overdoses are a leading cause of postpartum mortality. Most women who are pregnant do not receive medications for treatment of opioid use disorder, despite the mortality benefit that these agents confer. Furthermore, buprenorphine is associated with milder symptoms of neonatal abstinence syndrome (NAS) compared with methadone.

OBJECTIVE

To describe the prevalence and geographic distribution across the US of obstetrician-gynecologists who can prescribe buprenorphine (henceforth described as X-waivered) in 2019.

DESIGN, SETTING, AND PARTICIPANTS

A cross-sectional, nationwide study linking physician-specific data to county- and state-level data was conducted from September 1, 2019, to March 31, 2020. Data were obtained on 31 211 obstetrician-gynecologists who accept Medicaid insurance through the Centers for Medicare & Medicaid Services Physician Compare data set and linked to the Drug Addiction Treatment Act buprenorphine-waived clinician list.

EXPOSURES

State-level NAS incidence and county-level uninsured rates and rurality.

MAIN OUTCOMES AND MEASURES

Prevalence and geographic distribution of obstetrician-gynecologists who are trained to prescribe buprenorphine.

RESULTS

Among the 31 211 identified obstetrician-gynecologists, 18 710 (59.9%) were women. Most had hospital privileges (23 236 [74.4%]) and worked in metropolitan counties (28 613 [91.7%]). Only 560 of the identified obstetrician-gynecologists (1.8%) were X-waivered. Obstetrician-gynecologists in counties with fewer than 5% uninsured residents had nearly twice the odds of being X-waivered (adjusted odds ratio [aOR], 1.59; 95% CI, 1.04-2.44; P = .04) compared with those in counties with greater than 15% uninsured residents. Compared with those located in metropolitan counties, obstetrician-gynecologists in suburban counties (eg, urban population of ≥20 000 and adjacent to a metropolitan area) were more likely to be X-waivered (aOR, 1.85; 95% CI, 1.26-2.71; P = .002). Compared with states with an NAS rate of 5 per 1000 births or less, obstetrician-gynecologists in states with an NAS rate of 15 per 1000 births or greater had nearly 5 times the odds of being X-waivered (aOR, 4.94; 95% CI, 3.60-6.77; P < .001). Obstetrician-gynecologists without hospital privileges were more likely to be X-waivered (aOR, 1.32; 95% CI, 1.08-1.61; P = .007).

CONCLUSIONS AND RELEVANCE

Fewer than 2% of obstetrician-gynecologists who accept Medicaid are able to prescribe buprenorphine, and their geographic distribution appears to be skewed in favor of suburban counties. This finding suggests that there is an opportunity for health systems and professional societies to incentivize X-waiver trainings among obstetrician-gynecologists to increase patients' access to buprenorphine, especially during pregnancy.

The MATernaL and Infant NetworK to Understand Outcomes Associated with Treatment of Opioid Use Disorder During Pregnancy (MAT-LINK): Surveillance Opportunity

Pregnant women with opioid use disorder (OUD) are at risk of overdose, infectious diseases, and inadequate prenatal care. Additional risks include adverse pregnancy and infant outcomes, such as preterm birth and neonatal abstinence syndrome. Management and treatment of OUD during pregnancy are associated with improved maternal and infant outcomes. Professional organizations, including the American College of Obstetricians and Gynecologists, recommend offering opioid agonist pharmacotherapy (i.e., methadone or buprenorphine) combined with behavioral therapy as standard treatment for pregnant women with OUD. Other medications and herbal supplements have also been used by pregnant women for OUD. Determining which OUD treatments optimize maternal and infant outcomes is challenging given the host of potential factors that affect these outcomes. The Centers for Disease Control and Prevention initiated the MATernaL and Infant NetworK to Understand Outcomes Associated with Treatment of Opioid Use Disorder during Pregnancy (MAT-LINK) to monitor more than 2000 mothers and their infants, using data collected from geographically diverse clinical sites. Information learned from MAT-LINK will inform the future management and treatment of pregnant women with OUD.