Publications by authors named "Mary McDuffie"

Objectives: To examine the effects of a comprehensive, multiyear (2015-2020) statewide contraceptive access intervention in Delaware on the contraceptive initiation of postpartum Medicaid patients. The program aimed to increase access to all contraceptives, including long-acting reversible contraceptives (LARC). The program included interventions specifically targeting postpartum patients (Medicaid payment reform and hospital-based immediate postpartum (IPP) LARC training) and interventions in outpatient settings (provider training and operational supports).

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Background: Higher neighborhood deprivation is associated with hypertension diagnosis in youth. In this study, we assess if there is an association between neighborhood deprivation and antihypertensive therapy prescription among insured youth with a primary hypertension diagnosis.

Methods: Using a retrospective cross-sectional design, we assessed the proportion of youth with a diagnosis of primary hypertension prescribed antihypertensive therapy.

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Objectives: This study investigates different approaches to integrating evictions data with Medicaid and homeless shelter utilization records at the individual level for the state of Delaware. We especially focus on evaluating the feasibility of creating an integrated dataset focused on children and adolescents through different approaches to matching.

Methods: We attempt to link existing statewide records on evictions, Medicaid, and shelter from 2017-2019.

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This study draws upon data from two databases: claims and encounters that were reimbursed by the state's Division of Medicaid and Medical Assistance (DMMA) and the Homeless Management Information System (HMIS) database that collects homeless services data on individuals experiencing homelessness. Records from both sets are matched to identify 838 adults who both experienced homelessness and were Medicaid eligible in 2019, and to select, through propensity score matching, an equal set of control observations who were similarly Medicaid-eligible but had no record of homelessness. Outcomes are compared based upon scores on the Charlson Elixhauser Comorbidity index, incidence of substance use disorder, inpatient, emergency department, and outpatient visits, and inpatient, emergency department, and outpatient costs.

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Importance: Federal and state agencies granted temporary regulatory waivers to prevent disruptions in access to medication for opioid use disorder (MOUD) during the COVID-19 pandemic, including expanding access to telehealth for MOUD. Little is known about changes in MOUD receipt and initiation among Medicaid enrollees during the pandemic.

Objectives: To examine changes in receipt of any MOUD, initiation of MOUD (in-person vs telehealth), and the proportion of days covered (PDC) with MOUD after initiation from before to after declaration of the COVID-19 public health emergency (PHE).

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Racial and ethnic minorities are disproportionately affected by limited health literacy. Therefore, this study assessed census block health literacy level and medication adherence in Delaware among Black individuals with hypertension (HTN) receiving health care through Medicaid. This was a cross-sectional study of Black Delaware Medicaid beneficiaries (18-64 years old) from the 3 counties in Delaware (Kent, New Castle, and Sussex) from 2016 to 2019.

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Background: Medication for opioid use disorder (MOUD) is evidence-based treatment during pregnancy and postpartum. Prior studies show racial/ethnic differences in receipt of MOUD during pregnancy. Fewer studies have examined racial/ethnic differences in MOUD receipt and duration during the first year postpartum and in the type of MOUD received during pregnancy and postpartum.

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Importance: The association between degree of neighborhood deprivation and primary hypertension diagnosis in youth remains understudied.

Objective: To assess the association between neighborhood measures of deprivation and primary hypertension diagnosis in youth.

Design, Setting, And Participants: This cross-sectional study included 65 452 Delaware Medicaid-insured youths aged 8 to 18 years between January 1, 2014, and December 31, 2019.

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Background: Limited information exists about testing for human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) among Medicaid enrollees after starting medication for opioid use disorder (MOUD), despite guidelines recommending such testing. Our objectives were to estimate testing prevalence and trends for HIV, HBV, and HCV among Medicaid enrollees initiating MOUD and examine enrollee characteristics associated with testing.

Methods: We conducted a serial cross-sectional study of 505 440 initiations of MOUD from 2016 to 2019 among 361 537 Medicaid enrollees in 11 states.

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Background: Same-day placement of long-acting reversible contraceptives, occurring when the device is requested and placed within a single visit, reduces barriers to the patient and reduces unintended pregnancies. Despite the safety and efficacy of same-day placement, access to same-day services remains low.

Objective: This study aimed to evaluate the effects of the Delaware Contraceptive Access Now initiative, a statewide initiative in Delaware focused on increasing same-day access to effective contraception on same-day receipt of long-acting reversible contraceptives.

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

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Background: In the US, Medicaid covers over 80 million Americans. Comparing access, quality, and costs across Medicaid programs can provide policymakers with much-needed information. As each Medicaid agency collects its member data, multiple barriers prevent sharing Medicaid data between states.

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Delaware Contraceptive Access Now was a statewide contraceptive access program implemented in Delaware between 2015 and 2020. We evaluated the association of the program with contraceptive initiation in Delaware's Medicaid program using a difference-in-differences design that compared changes in Delaware to changes in Maryland. Results suggest that program implementation was associated with increased initiation of long-acting reversible methods, particularly among adolescent patients aged 15 to 18 years.

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Background And Aims: Medication for opioid use disorder (MOUD) reduces harms associated with opioid use disorder (OUD), including risk of overdose. Understanding how variation in MOUD duration influences overdose risk is important as health-care payers increasingly remove barriers to treatment continuation (e.g.

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Among Medicaid-enrolled pregnant persons with opioid use disorder, one third are diagnosed with hepatitis C virus, but only 6% receive postpartum follow-up or medication treatment.

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Importance: There is limited information about trends in the treatment of opioid use disorder (OUD) among Medicaid enrollees.

Objective: To examine the use of medications for OUD and potential indicators of quality of care in multiple states.

Design, Setting, And Participants: Exploratory serial cross-sectional study of 1 024 301 Medicaid enrollees in 11 states aged 12 through 64 years (not eligible for Medicare) with International Classification of Diseases, Ninth Revision (ICD-9 or ICD-10) codes for OUD from 2014 through 2018.

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Objective: To evaluate the likelihood of a short interpregnancy interval (IPI) resulting in a birth among women covered by Medicaid, as a function of postpartum contraceptive method type.

Study Design: We used Medicaid claims and eligibility data to identify women (aged 15-44) who had a Medicaid-financed birth in Delaware in the years 2012-2014 (n = 10,328). Claims were analyzed to determine postpartum contraceptive type within 60 days of the index birth, and linked birth certificates were used to determine the incidence and timing of a subsequent birth through 2018 (regardless of payer).

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Objective: The objective of this overview is to discuss the development, implementation, data content, and structure of the Uniformed Services University Pain Registry Biobank. Additionally, procedures and policies for accessing samples for pain-related research purposes are detailed.

Design: Cross-sectional overview.

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Objectives: Unintended pregnancy is an individual and public health problem with significant social and economic consequences. The literature has established that parents, especially mothers, play an important role in shaping the contraceptive attitudes and behaviors of young women and could therefore affect the likelihood of their daughter experiencing an unintended pregnancy. However, research has yet to fully explore the nuances of how mothers influence their daughters with respect to contraception.

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Objective: To determine if the perioperative administration of valproic acid reduces the incidence of chronic pain three months after amputation or revision surgery.

Design: Multicenter, randomized, double-blind, placebo-controlled trial.

Setting: Academic, military, and veteran medical centers.

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This project sought to identify Medicaid members with intellectual and developmental disabilities (IDD) in five states (Delaware, Iowa, Massachusetts, New York, and South Carolina) to develop a cohort for subsequent analyses of medical conditions and service utilization. We estimated that over 300,000 Medicaid members in these states had IDD. All members with diagnostic codes for IDD were identified and the three most frequent diagnoses were unspecified intellectual disability, autism or pervasive developmental disorder, and cerebral palsy.

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Chronic postsurgical pain impacts most amputees, with more than half experiencing neuralgic residual limb pain. The transition from normal acute postamputation pain to chronic residual limb pain likely involves both peripheral and central inflammatory mechanisms. As part of the Veterans Integrated Pain Evaluation Research study, we investigated links between systemic inflammatory mediator levels and chronic residual limb pain.

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Objective: To define clinical phenotypes of postamputation pain and identify markers of risk for the development of chronic pain.

Design: Cross-sectional study of military service members enrolled 3-18 months after traumatic amputation injury.

Setting: Military Medical Center.

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Background: Lesser known illnesses (LKI) such as hemochromatosis, celiac disease, and Lyme disease are likely to be under-diagnosed due to the often varied and sometimes vague symptoms and lack of familiarity with testing. Insufficient testing and diagnoses of these LKI could result in poor outcomes for patients and unnecessary costs.

Objectives: The objective of this research was to evaluate the effectiveness of educational campaigns designed to inform physicians about the symptoms of LKIs and the basis to test patients for the diseases.

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Background: The Army Surgeon General released the Pain Management Task Force final report in May 2010. Among military providers, concerns were raised that the standard numeric rating scale (NRS) for pain was inconsistently administered and of questionable clinical value. In response, the Defense and Veterans Pain Rating Scale (DVPRS) was developed.

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