Publications by authors named "Vaughn John"

Introduction: Patients with hematologic malignancies frequently receive elective anticancer therapy as inpatients. The impact of introducing hospitalists on quality outcomes in this subset of patients is unknown.

Methods: Patients with leukemia or lymphoma electively admitted for anticancer therapy to either a hematologist-led service (TS; n=59) or to a hospitalist-led service (HS; n=102) during two parallel 18-month time periods were included.

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Purpose: Immune checkpoint inhibitors (ICIs) have revolutionized the care of patients with cancer, but use among hospitalized patients is controversial as a result of questionable benefit and high costs. To evaluate the role of ICIs in the inpatient (IP) setting, we conducted the Inpatient Immunotherapy Outcomes Study (IIOS) to describe characteristics and outcomes of patients who received IP ICIs.

Methods: IIOS is a retrospective study of patients treated with ICIs during hospitalization between 2012 and 2021 at five academic institutions.

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Disrespect and abuse in maternity services in South Africa has been described over several decades and are rooted in the country's complex socio-political landscape and unequal health system which places strain on public sector health professionals. Strategies to improve the quality of health care typically involve once-off didactic teaching or outside technical consultants focused on improving specific health programmes. These approaches fail to encourage self-reflection or to establish learning cultures.

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Article Synopsis
  • * Using a large database, researchers analyzed the relative survival (RS), overall survival (OS), and lymphoma-specific survival (LSS) of different lymphoma subtypes, highlighting that splenic marginal zone lymphoma had the highest transformation rate.
  • * The findings suggest that patients with transformed follicular lymphoma who experience early transformation or have received previous treatment have poorer survival rates, indicating a need for new treatment strategies for these patients.
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Wealth inequality is rising, and millennials will be the future recipients of the largest intergenerational wealth transfer. Meanwhile, there is a need to move more money to support transformative social justice movements. This study examines the impact of spirituality as a motivator for the social justice movement giving among progressive young adult activists with wealth and class privilege, organizing toward the equitable redistribution of wealth, land, and power.

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There are limited data assessing the risk scores for primary treatment failure (PTF) in patients with classical Hodgkin lymphoma (cHL; PTF-cHL) undergoing autologous hematopoietic cell transplantation (auto-HCT). ECLIPSE (Evaluation of Classical Hodgkin Lymphoma patients wIth Primary treatment failure and analySis of outcomEs) is a multicenter retrospective cohort of patients with PTF-cHL (aged ≥15 years) diagnosed on or after 1 January 2005, at 15 US medical centers. PTF was defined as 1 of the following patterns of failure: (1) progressive disease by imaging during or within 6 weeks of completion of frontline chemotherapy (primary progression [PP]); (2) partial response (PR) or stable disease (SD) by imaging after completion of frontline treatment (PR/SD); (3) progression of disease by imaging (and confirmed by biopsy) within 12 months of frontline therapy completion after prior documentation of complete response (CR; early relapse [ER]).

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Marine dissolved organic nitrogen (DON) is one of the planet's largest reservoirs of fixed N, which persists even in the N-limited oligotrophic surface ocean. The vast majority of the ocean's total DON reservoir is refractory (RDON), primarily composed of low molecular weight (LMW) compounds in the subsurface and deep sea. However, the composition of this major N pool, as well as the reasons for its accumulation and persistence, are not understood.

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Population-based data comparing the outcomes of patients with transformed follicular lymphoma (t-FL) and de novo diffuse large B-cell lymphoma (DLBCL) are lacking. The objective of this study was to compare the survival of patients with t-FL and de novo DLBCL diagnosed in the United States between 2010-2018. We hypothesized that patients with t-FL would have an inferior survival compared to patients with de novo DLBCL.

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Background: Despite interventions to provide knowledge and improve bitter cassava processing in the Democratic Republic of Congo (DRC), cassava processing is sub-optimal. Consumption of insufficiently processed bitter cassava is associated with konzo, a neurological paralytic disease.

Objective: This study aimed to explore barriers to appropriate cassava processing carried out by women in one deep rural, economically deprived area of DRC.

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Background: A nutritious and healthy diet during pregnancy is essential for the health of both mother and baby. Inadequate dietary intake during pregnancy contributes to maternal malnutrition and can have lifelong effects on the health of the child. Maternal malnutrition is common in many low-income countries, including the Democratic Republic of Congo (DRC).

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The Coronavirus disease 2019 (COVID-19) pandemic forced not only rapid changes in how clinical care and educational programs are delivered but also challenged academic medical centers (AMCs) like never before. The pandemic made clear the need to have coordinated action based on shared data and shared resources to meet the needs of patients, learners, and communities. Family medicine departments across the country have been key partners in AMCs' responses.

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Partnerships between Higher Education Institutions in the global South and North have potential for building capacity in public health research in low-resource countries. We present experiences of partners involved in a North-South-South partnership between universities in Norway, the Democratic Republic of Congo (DRC) and South Africa. The partnership aimed to establish a postgraduate programme in nutritional epidemiology at the University of Kinshasa, DRC, and develop a cadre of researchers and academic leaders to provide locally generated health research to inform policy.

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Background: Racial/ethnic disparities in the utilization of hematopoietic cell transplantation (HCT) have been reported for patients with hematologic malignancies, but population-based data are lacking for lymphoma patients. The objective of this study was to determine whether racial and ethnic disparities exist in the utilization of autologous HCT for lymphoma in the United States.

Method: We used Surveillance, Epidemiology, and End Results data linked to Medicare fee-for-service claims.

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Background: Globally, increasing numbers of higher education institutions (HEIs) in non-English-speaking countries have adopted English as a medium of instruction (EMI), because of the perception that this provides opportunities to attract high-calibre students and academic staff, and engage with the international research community. We report an evaluation of a North-South-South collaboration to develop health research capacity in the Democratic Republic of the Congo (DRC) by establishing a postgraduate programme in nutritional epidemiology at the Kinshasa School of Public Health (KSPH), where EMI was adopted. We report experiences and perceptions of stakeholders, facilitators and students about using EMI.

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There is a paucity of data regarding racial disparities in the survival of patients with indolent non-Hodgkin lymphomas (iNHL) in the contemporary time-period. Hence, we sought to determine whether racial disparities exist in the survival of patients with iNHLs in the US. We included 68 059 adult patients with follicular lymphoma (FL, n = 41 943), marginal zone lymphoma (MZL, n = 22 485), and lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM, n = 3631) who were diagnosed in the US between 2000 and 2017.

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Background: Low- and Middle-income countries (LMIC) face considerable health and nutrition challenges, many of which can be addressed through strong academic leadership and robust research translated into evidence-based practice. A North-South-South partnership between three universities was established to implement a master's programme in nutritional epidemiology at the Kinshasa School of Public Health (KSPH), Democratic Republic of Congo (DRC). The partnership aimed to develop academic leadership and research capacity in the field of nutrition in the DRC.

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On university campuses and in similar congregate environments, surveillance testing of asymptomatic persons is a critical strategy (1,2) for preventing transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19). All students at Duke University, a private research university in Durham, North Carolina, signed the Duke Compact (3), agreeing to observe mandatory masking, social distancing, and participation in entry and surveillance testing. The university implemented a five-to-one pooled testing program for SARS-CoV-2 using a quantitative, in-house, laboratory-developed, real-time reverse transcription-polymerase chain reaction (RT-PCR) test (4,5).

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Objectives: We report the effectiveness of a mentoring approach to improve health workers' (HWs') knowledge, attitudes and confidence with counselling on HIV and infant feeding.

Design: Quasi-experimental controlled before-after study.

Setting: Randomly selected primary healthcare clinics (n=24 intervention, n=12 comparison); two districts, South Africa.

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Purpose: SARS-CoV-2 (COVID-19) is a systemic infection. Patients with cancer are immunocompromised and may be vulnerable to COVID-related morbidity and mortality. The objectives of this study were to determine if patients with cancer have worse outcomes compared with patients without cancer and to identify demographic and clinical predictors of morbidity and mortality among patients with cancer.

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Background: Population-based studies previously showed an improvement in overall survival (OS) for patients with diffuse large B-cell lymphoma (DLBCL) who received chemoimmunotherapy with rituximab. However, there is limited data (especially at the population level) that show a similar trend in OS improvement, in the most recent time period. We hypothesized that survival for DLBCL patients diagnosed in the United States has continued to improve in recent years and intended to measure outcome improvements.

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