Publications by authors named "Ellis Dillon"

Purpose: Studies of healthcare encounters leading to cancer diagnosis have increased over recent years. While some studies examine healthcare utilization before the cancer registry date of diagnosis, relevant pre-diagnosis interactions are not always immediately prior to this date due to date abstraction guidelines. We evaluated agreement of a registry date with a claims-based index and examined Emergency Department (ED) involvement in cancer diagnosis as an example of possible pre-diagnostic healthcare misclassification that could arise from improper date choice.

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The relationship between nursing home (NH) stays before death and hospice use is understudied. A retrospective cohort study of Connecticut Medicaid decedents with common hospice diagnoses who died between 2017 and 2020. Medicaid/Medicare claims identified NH stays, hospice use, short length of stay (LOS) (≤7 days), demographics, and diagnoses.

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Background: Healthcare fragmentation and lack of care coordination are longstanding problems in cancer care. This study's goal was to provide in-depth understanding of how the organization and fragmentation of healthcare impacts the experiences of patients with advanced cancer and their families, especially near the end-of-life.

Methods: This mixed-methods quality improvement study took place at a large multi-specialty healthcare organization in Northern California.

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Background: Internationally, 20% to 50% of cancer is diagnosed through emergency presentation, which is associated with lower survival, poor patient experience, and socioeconomic disparities, but population-based evidence about emergency diagnosis in the United States is limited. We estimated emergency department (ED) involvement in the diagnosis of cancer in a nationally representative population of older US adults, and its association with sociodemographic, clinical, and tumor characteristics.

Methods: We analyzed Surveillance, Epidemiology, and End Results Program-Medicare data for Medicare beneficiaries (≥66 years old) with a diagnosis of female breast, colorectal, lung, and prostate cancers (2008-2017), defining their earliest cancer-related claim as their index date, and patients who visited the ED 0 to 30 days before their index date to have "ED involvement" in their diagnosis, with stratification as 0 to 7 or 8 to 30 days.

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Objective: This qualitative study aimed to explore the psychosocial experience of older adults undergoing major elective surgery from the perspective of both the patient and family caregiver.

Summary Background Data: Older adults face unique psychological and social vulnerabilities that can increase susceptibility to poor health outcomes. How these vulnerabilities influence surgical treatment and recovery is understudied in the geriatric surgical population.

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Importance: Hospice care enhances quality of life for people with terminal illness and is most beneficial with longer length of stay (LOS). Most hospice research focuses on the Medicare-insured population. Little is known about hospice use for the racially and ethnically diverse, low-income Medicaid population.

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Objective: This qualitative study aimed to explore the challenges faced by older adults regarding the postoperative symptom experience after major elective surgery.

Background: Although extensively studied in oncology settings, the impact of postoperative symptom burden remains largely underexplored in elective major surgery among older adults.

Methods: We employed convenience sampling to recruit adults aged 65 years or above undergoing major elective surgery at the University of California, San Francisco.

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This study explores the experience of the breast cancer journey for younger women receiving patient navigation services in a healthcare delivery system and any remaining challenges that navigation services may leave unaddressed. In this qualitative analysis, we used a purposeful sampling approach to conduct a semistructured in-person interview with 19 younger women (under 50 years at the time of diagnosis) at various stages of breast cancer treatment and receiving care that included some form of patient navigation services/within the Sutter Health system. Thematic analysis was performed using an inductive grounded theory approach.

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Background: The COVID-19 pandemic has been an unusually comprehensive crisis that has taken a toll on people in their roles both at work and at home, giving rise to a new normal.

Purpose: Relational coordination theory shows how communicating and relating for the purpose of task integration drives positive outcomes for workers, their clients, and their employers. The ecological theory of work-family spillover shows how relational dynamics from work spillover into family life, and vice versa.

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Background: Cancer care is described as insufficiently patient-centered, requiring improved accessibility and coordination. Breast oncology nurse navigators may help provide timely patient care by improving care coordination.

Objectives: This study evaluated a breast cancer navigation (BCN) program in a large ambulatory healthcare system.

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The COVID-19 pandemic caused healthcare systems and patients to cancel or postpone healthcare services, particularly preventive care. Many patients still have not received these services raising concerns about the potential for preventable morbidity and mortality. At Sutter Health, a large integrated healthcare system in Northern California, we conducted a population-based email survey in August 2020 to evaluate perceptions and preferences about where, when, and how healthcare is delivered during the COVID-19 pandemic.

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Many studies have assessed the factors associated with overall video visit use during the COVID-19 pandemic, but little is known about who is most likely to continue to use video visits and why. The authors combined a survey with electronic health record data to identify factors affecting the continued use of video visit. In August 2020, a stratified random sample of 20,000 active patients from a large health care system were invited to complete an email survey on health care seeking preferences during the COVID.

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Objective: To examine public opinions of surgery in older adults.

Background: Increasing numbers of older adults are undergoing surgery. National healthcare organizations recognize the increased risks of postoperative complications and mortality in the older surgical population and have made efforts to improve the care of older adults undergoing surgery through hospital-level programs.

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Objective: To examine women's journeys with gynecologic cancer from before diagnosis through death and identify elements of their healthcare experience that warrant improvement.

Methods: This exploratory study used longitudinal progress notes data from a multispecialty practice in Northern California. The sample included women with stage IV gynecological cancer diagnosed after 2011 and who died before 2018.

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Article Synopsis
  • Studies on antibody responses from different COVID-19 vaccines are limited, but crucial for improving vaccine strategies like selection and dosage.
  • This research focuses on evaluating IgG antibody responses after vaccination with BNT162b2 and mRNA-1273, using data from healthcare professionals.
  • Results show that while both vaccines effectively induced antibody responses, mRNA-1273 produced significantly higher IgG levels at various time points compared to BNT162b2, suggesting potential differences in effectiveness based on vaccine brand.
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Background: The COVID-19 pandemic brought rapid changes to the work and personal lives of clinicians.

Objective: To assess clinician burnout and well-being during the COVID-19 pandemic and guide healthcare system improvement efforts.

Design: A survey asking about clinician burnout, well-being, and work experiences.

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Background: Patient navigators can improve patient experiences of care and outcomes, but little is known about how navigation programs may affect physician workflows and experience.

Objectives: This study aimed to understand patient and physician experiences with a breast cancer navigation (BCN) program using Lean design principles.

Methods: Surveys were developed and distributed from 2019 to 2020 to 255 patients diagnosed with breast cancer and 128 physicians in primary care and cancer-related specialties.

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Background: Individuals with advanced cancer and their families have negative end-of-life experiences when the care they receive is not aligned with their values and preferences.

Objective: To obtain in-depth information on how patients with advanced cancer and the oncology and palliative care (PC) clinicians who care for them discuss goals of care (GoC).

Design: The research team conducted in-depth interviews and qualitative data analysis using open coding to identify how perspectives on GoC discussions vary by stage of illness, and experience with PC teams.

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Objectives: To determine the personnel costs and revenue generated by embedding a behavioral health nurse practitioner (BHNP) in primary care clinics to evaluate and manage adolescent behavioral health needs.

Study Design: We estimated personnel costs and revenue from a quality improvement project undertaken at 4 clinic sites between August 1, 2016, and July 31, 2018, at a large multispecialty medical group in northern California.

Methods: Costs were estimated by identifying the actual hours spent by the BHNP and for medical assistant (MA) support and using Bureau of Labor Statistics national data on wages and benefits.

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Purpose: Early palliative care (PC) for individuals with advanced cancer improves patient and family outcomes and experience. However, it is unknown when, why, and how in an outpatient setting individuals with stage IV cancer are referred to PC.

Methods: At a large multi-specialty group in the USA with outpatient PC implemented beginning in 2011, clinical records were used to identify adults diagnosed with stage IV cancer after January 1, 2012 and deceased by December 31, 2017 and their PC referrals and hospice use.

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Background: Primary care physician (PCP) burnout is prevalent and on the rise. Physician burnout may negatively affect patient experience of care.

Objective: To identify the direct impact of PCP burnout on patient experience in various domains of care.

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