Publications by authors named "Nathan D Shippee"

Aim: To investigate non-clinical factors that affect health-related decision-making in mothers with young ambulatory children living with cerebral palsy (CP).

Method: Guided by phenomenology, we asked parents to describe early experiences of raising a young ambulatory child living with CP. Conversations were audio-recorded, transcribed, coded, and analysed using a qualitative inductive approach.

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Introduction: Despite effective medications for opioid use disorder (MOUD), treatment engagement remains low. As the overdose crisis is increasingly characterized by opioids co-used with other substances, it is important to understand whether existing models effectively support treatment for patients who use multiple substances. Hospital-based addiction consultation services (ACS) have shown promise at increasing MOUD initiation and treatment engagement, but the effectiveness for patients with specific co-use patterns remains unknown.

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Introduction: The US overdose crisis is increasingly characterized by opioid and methamphetamine co-use. Hospitalization is an important opportunity to engage patients in substance use treatment. Understanding characteristics of co-use-related hospital stays can inform the development of services to better support this growing patient population.

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Background: The overdose crisis is increasingly characterized by opioid and stimulant co-use. Despite effective pharmacologic treatment for both opioid use disorder (OUD) and contingency management for stimulant use disorders, most individuals with these co-occurring conditions are not engaged in treatment. Hospitalization is an important opportunity to engage patients and initiate treatment, however existing hospital addiction care is not tailored for patients with co-use and may not meet the needs of this population.

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Article Synopsis
  • The paper discusses the creation and testing of a tool aimed at enhancing healthcare researchers' embeddedness, which refers to their connections and engagement with vital stakeholders in health systems.
  • The MN-LHS Embeddedness Tool evaluates connections across four domains: patients/caregivers, local practice, local institutional research, and national networks to improve scholar training programs.
  • Findings indicated the tool showed moderate validity and revealed significant improvements in embeddedness scores from the beginning to the end of training, proving its practical utility for researcher development in learning health systems.
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Aim: To evaluate the factor structure of the 49 goal prioritization questions of the Gait Outcome Assessment List (GOAL).

Method: This was a retrospective review of 622 consecutive individuals diagnosed with cerebral palsy (median = 11 years 2 months, SD = 6 years 0 months, 370 male), who underwent a routine clinical gait analysis at a specialty center and completed the validated GOAL. To assess dimensionality, we performed exploratory and confirmatory factor analyses on the goal ratings of its 49 gait-related items.

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Background: Individuals experiencing homelessness or criminal justice involvement (CJI) have higher rates of substance use than the general public. Despite documented barriers to accessing treatment, few studies have compared substance use treatment patterns between these groups.

Methods: This paper uses data from the Treatment Episode Dataset-Admissions between 2006 to 2018 to describe characteristics and trends in substance use treatment admissions indicating homelessness (n=2,524,413), CJI (4,764,750), both (509,902), or neither (8,950,797) in the United States.

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Plasma proteomic profiling may aid in the discovery of novel biomarkers upstream of the development of atrial fibrillation (AF). We used data from the Atherosclerosis Risk in Communities study to examine the relation between large-scale proteomics and incident AF in a cohort of older-aged adults in the United States. We quantified 4,877 plasma proteins in Atherosclerosis Risk in Communities participants at visit 5 (2011-2013) using an aptamer-based proteomic profiling platform.

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Non-transport to a hospital after emergency medical services (EMS) encounters for falls is common. However, incident factors associated with non-transport have not been well studied, especially beyond older adults. The objectives of this study are to (1) describe trends in fall-related EMS utilisation among adult patients from 2010 to 2018; (2) describe incident characteristics by age; and (3) identify incident factors associated with non-transport following a fall.

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Background: Data are needed on the use of oral anticoagulation in patients with atrial fibrillation (AF) in rural versus urban areas, including the initiation of direct oral anticoagulants (DOACs).

Objective: We used Medicare data to examine rural/urban differences in anticoagulation use in patients with AF.

Methods: We identified incident AF in a 20% sample of fee-for-service Medicare beneficiaries (aged ≥ 65 years) from 2011 to 2016 and collected ZIP code and covariates at the time of AF.

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Background: Studies evaluating strategies for the rapid development, implementation, and evaluation of clinical decision support (CDS) systems supporting guidelines for diseases with a poor knowledge base, such as COVID-19, are limited.

Objective: We developed an anticoagulation clinical practice guideline (CPG) for COVID-19, which was delivered and scaled via CDS across a 12-hospital Midwest health care system. This study represents a preplanned 6-month postimplementation evaluation guided by the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework.

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Background And Aims: The recent surge in methamphetamine use highlights the need for timely data on its health effects and healthcare service use impact. However, there is no ICD code for methamphetamine use. This study quantifies the positive predictive value of ICD-9-CM and ICD-10-CM psychostimulant codes for methamphetamine use.

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Travel distance to care facilities may shape urban-rural cancer survival disparities by creating barriers to specific treatments. Guideline-supported treatment options for women with early stage breast cancer involves considerations of breast conservation and travel burden: Mastectomy requires travel for surgery, whereas breast-conserving surgery (BCS) with adjuvant radiation therapy (RT) requires travel for both surgery and RT. This provides a unique opportunity to evaluate the impact of travel distance on surgical decisions and receipt of guideline-concordant treatment.

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Background: Centers for Medicare & Medicaid Services (CMS) began encouraging governors to implement work requirements for Medicaid enrollees using section 1115 waivers in 2018. Significant controversy surrounds such attempts, but we know little about the perceptions and experiences of enrollees.

Objective: To characterize experiences of work and its relationship to participation in Medicaid and other public programs among potential targets of Medicaid work requirements.

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There is increasing interest in health care organizations functioning as learning health systems (LHSs) to improve the quality and efficiency of health care delivery while generating new knowledge. Individuals must be trained in associated concepts and competencies and subsequently positioned (or embedded) within the delivery system for maximum effect as they perform their scholarship. Potential researchers within LHSs come from many different training backgrounds; therefore, each LHS scholar requires a goal-directed plan tailored to his or her needs.

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Background: For older adults with relapsing-onset multiple sclerosis (MS), limited information is available to inform if, or when, disease-modifying drugs (DMDs) may be safely discontinued.

Objective: The aim of this study was to project the outcomes of DMD discontinuation among older adults with relapsing-onset MS.

Methods: We projected the 10-year outcomes of discontinuation of a DMD (interferon-β, fingolimod, or natalizumab) among older adults (aged 55 or 70 years) who were relapse-free for 5 or more years and had not reached an Expanded Disability Status Scale (EDSS) score of 6.

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Purpose: The distance patients travel for specialty care is an important barrier to health care access, particularly for those living in rural areas. This study characterizes the actual distance older breast cancer patients traveled to radiation treatment and the minimum distance necessary to reach radiation care, and examines whether any patient demographic or clinical factors are associated with greater travel distance.

Methods: We used data from the Surveillance Epidemiology and End Results (SEER)-Medicare database.

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Article Synopsis
  • In 2010, Hennepin County Medical Center shifted to a per capita payment model, highlighting high spending on a small group of high-need patients, which prompted the creation of an interdisciplinary primary care clinic.
  • The clinic utilized nurses for risk stratification and offered integrated medical, coordination, and social services, including mental health support, aiming to reduce hospital readmissions and emergency service usage among patients.
  • Data showed that while outpatient costs almost doubled for patients, overall costs decreased by 16%, particularly in inpatient care, demonstrating the effectiveness of multidisciplinary teams and the need for payment reform in sustaining such programs.
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Background: Relapsing-onset multiple sclerosis (MS) typically starts in early- to mid-adulthood, yet the trajectory of disease activity over the subsequent lifetime remains poorly defined. Previous studies have not quantified the age-specific portion of decreases in annualized relapse rates (ARR).

Objective: The aim of this article is to determine, under a range of disease-related assumptions, the age-specific component of decreases in ARR over time among adults with relapsing-onset MS.

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Objectives: This study examines the role of work-related perceived age discrimination on women's mental health over the life course and tests whether financial strain mediates this relationship.

Methods: Using the National Longitudinal Survey of Mature Women (1967-2003), we employ nested growth curve models to evaluate whether perceived age discrimination at work influences women's depressive symptoms and life satisfaction and whether perceived financial strain mediates this relationship.

Results: Women who experienced age discrimination had greater overall depressive symptoms but not after controlling for financial strain.

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Importance: Despite indications of increasing amphetamine availability and psychostimulant deaths in the United States, evidence across data sources is mixed, and data on amphetamine-related hospitalizations are lacking.

Objective: To clarify trends in amphetamine-related hospitalizations and their clinical outcomes and costs in the United States.

Design, Setting, And Participants: This repeated, cross-sectional study used hospital discharge data from the Healthcare Cost and Utilization Project National Inpatient Sample.

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Whole-person care is a new paradigm for serious illness, but few programs have been robustly studied. We sought to test the effect of LifeCourse (LC), a person-centered program for patients living with serious illness, on health-care utilization, care experience, and quality of life, employing a quasi-experimental design with a Usual Care (UC) comparison group. The study was conducted 2012 to 2017 at an upper-Midwest not-for-profit health-care system with outcomes measured every 3 months until the end of life.

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Issue: Access to health care, use of services, and patient outcomes can be complicated by many medical and nonmedical factors. People facing complex challenges such as mental illness, housing insecurity, or substance use, however, are not a homogeneous group; different individuals have different needs.

Goals: To understand the needs of people with very low income--no more than 75 percent of the federal poverty level--who enrolled in Medicaid under Minnesota’s expansion of the program prior to the Affordable Care Act.

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Hennepin Health, a Medicaid accountable care organization, began serving early expansion enrollees (very low-income childless adults) in 2012. It uses an integrated care model to address social and behavioral needs. We compared health care utilization in Hennepin Health with other Medicaid managed care in the same area from 2012 to 2014, controlling for demographics, chronic conditions, and enrollment patterns.

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