Debra P Ritzwoller

Biographic Data

ID5534562
NAMEDebra P Ritzwoller
GIVEN NAMESDebra P
FAMILY NAMERitzwoller
SIGNATURERITZWOLLER D P
AFFILIATIONSKaiser Permanente
ORCID0000-0001-7116-8458
VERIFIEDYes
TOTAL WORKS19
TOTAL CITATIONS2
AUTHOR COUNT19
EDITOR COUNT0
FIRST PUBLICATION YEAR2003
LATEST PUBLICATION YEAR2025
H-INDEX1

  • Patterns of Medical Care Cost by Service Type Associated With Lung Cancer Screening

    Kris Wain, Mahesh Maiyani et al.ARTICLEMedical Care2025References: 45

    INTRODUCTION: Lung cancer screening (LCS) enhances early stage cancer detection; however, its impact on health care costs in real-world clinical settings is not well understood. The objective of this study was to assess changes in health care costs during the 12 months before LCS compared with the 12 months after. METHODS: This retrospective study analyzed health care costs based upon Medicare's fee-for-service reimbursement system using data fro…

  • Management of Neck or Back Pain in Ambulatory Care

    Douglas W Roblin, Glenn K Goodrich et al.ARTICLEMedical Care2023References: 50

    BACKGROUND/OBJECTIVE: In recent years, 2 circumstances have changed provider-patient interactions in ambulatory care: (1) the replacement of virtual for in-person visits and (2) the COVID-19 pandemic. We studied the potential impact of each event on provider practice and patient adherence by comparing the frequency of the association of provider orders, and patient fulfillment of those orders, by visit mode and pandemic period, for incident neck …

  • Did Access to Ambulatory Care Moderate the Associations Between Visit Mode and Ancillary Services Utilization Across the Covid-19 Pandemic Period

    Douglas W Roblin, Glenn K Goodrich et al.ARTICLEMedical Care2023References: 58

    BACKGROUND/OBJECTIVE: In recent years, 2 circumstances changed provider-patient interactions in primary care: the substitution of virtual (eg, video) for in-person visits and the COVID-19 pandemic. We studied whether access to care might affect patient fulfillment of ancillary services orders for ambulatory diagnosis and management of incident neck or back pain (NBP) and incident urinary tract infection (UTI) for virtual versus in-person visits. …

  • Impact of Covid-19 on Trends in Outpatient Clinic Utilization

    Courtney E McCracken, Jennifer C Gander et al.ARTICLEMedical Care2023References: 19

    BACKGROUND: The COVID-19 pandemic forced many US health care organizations to shift from mostly in-person care to a hybrid of virtual visits (VV) and in-person visits (IPV). While there was an expected and immediate shift to virtual care (VC) early in the pandemic, little is known about trends in VC use after restrictions eased. METHODS: This is a retrospective study using data from 3 health care systems. All completed visits from adult primary c…

  • Health-care–Related Practices in Virtual Behavioral Health Treatment for Major Depression Before and During the Covid-19 Pandemic

    Nancy S Weinfield, Heather M Tavel et al.ARTICLEMedical Care2023References: 20

    BACKGROUND: The abrupt shift to virtual care at the onset of the COVID-19 pandemic had the potential to disrupt care practices in virtual behavioral health encounters. We examined changes over time in virtual behavioral health-care-related practices for patient encounters with diagnoses of major depression. METHODS: This retrospective cohort study utilized electronic health record data from 3 integrated health care systems. Inverse probability of…

  • Virtual Care and Urinary Tract Infection Management

    Jennifer C Gander, Glenn K Goodrich et al.ARTICLEMedical Care2023References: 37

    BACKGROUND: During the COVID-19 pandemic, more health care issues were being managed remotely. Urinary tract infections (UTIs) are being managed more often using telehealth although few reports compare the rate of UTI ancillary service orders placed and fulfilled during these visits. OBJECTIVES: We aimed to evaluate and compare the rate of ancillary service orders and order fulfillments in incident UTI diagnoses between virtual and in-person enco…

  • Development of a Common Data Model for a Multisite and Multiyear Study of Virtual Visit Implementation

    Douglas W Roblin, Kevin B Rubenstein et al.ARTICLEMedical Care2023References: 7

    BACKGROUND/OBJECTIVE: In multisite studies, a common data model (CDM) standardizes dataset organization, variable definitions, and variable code structures and can support distributed data processing. We describe the development of a CDM for a study of virtual visit implementation in 3 Kaiser Permanente (KP) regions. METHODS: We conducted several scoping reviews to inform our study's CDM design: (1) virtual visit mode, implementation timing, and …

  • Patient Factors Associated With Use of Adult Primary Care and Virtual Visits During the Covid-19 Pandemic

    Debra P Ritzwoller, Glenn W Goodrich et al.ARTICLEMedical Care2023References: 22

    BACKGROUND: The delivery of adult primary care (APC) shifted from predominately in-person to modes of virtual care during the COVID-19 pandemic. It is unclear how these shifts impacted the likelihood of APC use during the pandemic, or how patient characteristics may be associated with the use of virtual care. METHODS: A retrospective cohort study using person-month level datasets from 3 geographically disparate integrated health care systems was …

  • Individuals Eligible for Lung Cancer Screening Less Likely to Receive Screening When Enrolled in Health Plans With Deductibles

    Kris Wain, Nikki M Carroll et al.ARTICLEMedical Care2023References: 38

    BACKGROUND: In 2015, the Centers for Medicare & Medicaid Services and commercial insurance plans began covering lung cancer screening (LCS) without patient cost-sharing for all plans. We explore the impact of enrolling into a deductible plan on the utilization of LCS services despite having no out-of-pocket cost requirement. METHODS: This retrospective study analyzed data from the Population-based Research to Optimize the Screening Process Lung C…

  • Planning for Implementation Success Using RE-AIM and CFIR Frameworks

    Open AccessDiane K King, Jo Ann Shoup et al.ARTICLEFrontiers in Public Health2020

    Background: RE-AIM (Reach, Effectiveness, Adoption, Implementation, Maintenance) and CFIR (Consolidated Framework for Implementation Research) define theory-based domains associated with the adoption, implementation and maintenance of evidence-based interventions. Used together, the two frameworks identify metrics for evaluating implementation success, i.e., high reach and effectiveness resulting in sustained practice change (RE-AIM), and modifia…

  • Adults With Asthma Experience No Increase in Asthma-related Exacerbations When Digital Communication Technology Tools Are Employed to Offset Provider Workload

    Bruce G Bender, Nicole M Wagner et al.ARTICLEMedical Care2020References: 20

    BACKGROUND: Challenges to health care efficiency are increasingly addressed with the help of digital communication technology tools (DCTs). OBJECTIVE: The objective of this study was to test whether DCT, compared with Usual Care, can reduce health care clinician burden without increasing asthma-related exacerbations among patients with asthma in a large integrated health care system. RESEARCH DESIGN: The (Breathewell) program was a pragmatic, ran…

  • Detecting Lung and Colorectal Cancer Recurrence Using Structured Clinical/Administrative Data to Enable Outcomes Research and Population Health Management

    Michael J Hassett, Hajime Uno et al.ARTICLEMedical Care2017References: 16

    INTRODUCTION: Recurrent cancer is common, costly, and lethal, yet we know little about it in community-based populations. Electronic health records and tumor registries contain vast amounts of data regarding community-based patients, but usually lack recurrence status. Existing algorithms that use structured data to detect recurrence have limitations. METHODS: We developed algorithms to detect the presence and timing of recurrence after definitiv…

  • Validating Billing/Encounter Codes as Indicators of Lung, Colorectal, Breast, and Prostate Cancer Recurrence Using 2 Large Contemporary Cohorts

    Michael J Hassett, Debra P Ritzwoller et al.ARTICLEMedical Care2014References: 19

    BACKGROUND: A substantial proportion of cancer-related mortality is attributable to recurrent, not de novo metastatic disease, yet we know relatively little about these patients. To fill this gap, investigators often use administrative codes for secondary malignant neoplasm or chemotherapy to identify recurrent cases in population-based datasets. However, these algorithms have not been validated in large, contemporary, routine care cohorts. OBJEC…

  • When Does an Episode of Care for Cancer Begin

    Mark C Hornbrook, 一郎 岩本 et al.ARTICLEMedical Care2013References: 5

    The prediagnosis phase is a resource-intensive component of cancer care episodes and should be included in cost of cancer estimates. More research is needed to determine whether reliable prognostic markers can be identified as the start of a cancer episode before a pathology-based diagnosis

  • Validation of Electronic Data on Chemotherapy and Hormone Therapy Use in HMOs

    Debra P Ritzwoller, Nikki Carroll et al.ARTICLEMedical Care2013

    BACKGROUND: Most data regarding medical care for cancer patients in the United States comes from Surveillance, Epidemiology and End Results-linked Medicare analyses of individuals aged 65 years or older and typically excludes Medicare Advantage enrollees. OBJECTIVES: To assess the accuracy of chemotherapy and hormone therapy treatment data available through the Cancer Research Network's Virtual Data Warehouse (VDW). RESEARCH DESIGN: Retrospective…

  • Accuracy and Complexities of Using Automated Clinical Data for Capturing Chemotherapy Administrations

    Erin J Aiello Bowles, Leah Tuzzio et al.ARTICLEMedical Care2009References: 7

    BACKGROUND: Chemotherapy data are important to almost any study on cancer prognosis and outcomes. However, chemotherapy data obtained from tumor registries may be incomplete, and abstracting chemotherapy directly from medical records can be expensive and time consuming. METHODS: We evaluated the accuracy of using automated clinical data to capture chemotherapy administrations in a cohort of 757 ovarian cancer patients enrolled in 7 health plans i…

  • Long-Term Results of a Smoking Reduction Program

    Russell E Glasgow, Bridget Gaglio et al.ARTICLEMedical Care2009References: 18

    INTRODUCTION: There have been few comprehensive evaluations of smoking reduction, especially in health care delivery systems, and little is known about its cost, maintenance of reduced smoking, or robustness across patient subgroups. METHODS: A generally representative sample of 320 adult smokers from an HMO scheduled for outpatient surgery or a diagnostic procedure was randomized to enhanced usual care or a theory-based smoking reduction interve…

  • Practical Clinical Trials for Translating Research to Practice

    Russell E Glasgow, David J Magid et al.ARTICLEMedical Care2005References: 34

    RATIONALE: There is a pressing need for practical clinical trials (PCTs) that are more relevant to clinicians and decision-makers, but many are unaware of these trials. Furthermore, such trials can be challenging to conduct and to report. OBJECTIVE: The objective of this study was to build on the seminal paper by Tunis et al (Practical clinical trials. Increasing the value of clinical research for decision making in clinical and health policy. JA…

  • Syndromic surveillance using minimum transfer of identifiable data

    Open AccessRichard Platt, Carmella Bocchino et al.ARTICLEJournal of Urban Health2003Cited by: 2