Mark C Hornbrook

Biographic Data

ID1733518
NAMEMark C Hornbrook
GIVEN NAMESMark C
FAMILY NAMEHornbrook
SIGNATUREHORNBROOK M C
AFFILIATIONSKaiser Permanente Center for Health Research
ORCID0000-0001-6087-0698
VERIFIEDYes
TOTAL WORKS33
TOTAL CITATIONS8
AUTHOR COUNT33
EDITOR COUNT0
FIRST PUBLICATION YEAR1977
LATEST PUBLICATION YEAR2020
H-INDEX1

  • Cancer Survivorship at the Intersections of Care and Personhood

    Michelle Ramirez, E Amy Janke et al.ARTICLEMedical Anthropology2020References: 43

    Surviving colorectal cancer following ostomy surgery with an intestinal stoma presents numerous challenges to the cultural category of full adult personhood. The foremost is managing unpredictable bowel activity. The technical management of the ostomy facilitated by biomedical specialists, is essential for personhood realignment. This article focuses on how some female long-term cancer survivors manage and adapt to this new fecal habitus by mobil…

  • Physical activity, bowel function, and quality of life among rectal cancer survivors

    Open AccessRobert S Krouse, Christopher S Wendel et al.ARTICLEQuality of Life Research2017

  • 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…

  • Rate of Second and Third Trimester Weight Gain and Preterm Delivery Among Underweight and Normal Weight Women

    Open AccessAndrea J Sharma, Kimberly K Vesco et al.ARTICLEMaternal and Child Health Journal2016

  • Associations of Gestational Weight Gain with Preterm Birth among Underweight and Normal Weight Women

    Open AccessAndrea J Sharma, Kimberly K Vesco et al.ARTICLEMaternal and Child Health Journal2015

  • Reliability and validity of a survey to measure bowel function and quality of life in long-term rectal cancer survivors

    Open AccessChristopher S Wendel, Marcia Grant et al.ARTICLEQuality of Life Research2014

  • 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…

  • I Didn't Feel Like I Was a Person Anymore

    Open AccessMichelle Ramirez, Andrea Altschuler et al.ARTICLEMedical Anthropology Quarterly2014Cited by: 7References: 39

    Colorectal cancer (CRC) is the third most common cancer in the United States. For some CRC patients, cancer treatment involves creating a permanent or temporary intestinal ostomy. Having an ostomy often results in complex social and physical concerns-including unpredictable and at times publicly noticeable bowel output. In this article, we discuss findings from 30 in-depth interviews with female CRC survivors with ostomies in the western United S…

  • 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…

  • Health Care Utilization in the First Year of Life among Small- and Large- for-Gestational Age Term Infants

    Open AccessPatricia M Dietz, Joanne Rizzo et al.ARTICLEMaternal and Child Health Journal2012

  • Complications Among Colorectal Cancer Survivors

    Mark C Hornbrook, Christopher S Wendel et al.ARTICLEMedical Care2011References: 40

    BACKGROUND: Societal preference-weighted health-related quality of life (HRQOL) scores enable comparing multidimensional health states across diseases and treatments for research and policy. OBJECTIVE: To assess the effects of living with a permanent intestinal stoma, compared with a major bowel resection, among colorectal cancer (CRC) survivors. RESEARCH DESIGN: Cross-sectional multivariate linear regression analysis to explain preference-weight…

  • Exploring household income as a predictor of psychological well-being among long-term colorectal cancer survivors

    Open AccessJ Jason Lundy, Stephen Joel Coons et al.ARTICLEQuality of Life Research2009

  • 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…

  • Assigning Resources to Health Care Use for Health Services Research

    Paul Fishman, Paul A Fishman et al.ARTICLEMedical Care2009References: 21

    AIMS: Our goals are 3-fold: (1) to review the leading options for assigning resource coefficients to health services utilization; (2) to discuss the relative advantages of each option; and (3) to provide examples where the research question had marked implications for the choice of which resource measure to employ. METHODS: Three approaches have been used to establish relative resource weights in health services research: (a) direct estimation of…

  • Health-related quality of life and utilities in primary-care patients with generalized anxiety disorder

    Open AccessDennis A Revicki, Nancy Brandenburg et al.ARTICLEQuality of Life Research2008

  • Data Systems to Evaluate Colorectal Cancer Screening Practices and Outcomes at the Population Level

    Patricia A Carney, Richard M Hoffman et al.ARTICLEMedical Care2008References: 20

    Carney, Patricia A. PhD; Hoffman, Richard M. MD; Lieberman, David A. MD; Hornbrook, Mark C. PhD; Dietrich, Allen J. MD; Klabunde, Carrie N. PhD Author Information

  • Risk Adjustment Using Automated Ambulatory Pharmacy Data

    Paul Fishman, Paul A Fishman et al.ARTICLEMedical Care2003References: 14

    OBJECTIVES: Develop and estimate the RxRisk model, a risk assessment instrument that uses automated ambulatory pharmacy data to identify chronic conditions and predict future health care cost. The RxRisk model's performance in predicting cost is compared with a demographic-only model, the Ambulatory Clinical Groups (ACG), and Hierarchical Coexisting Conditions (HCC) ICD-9-CM diagnosis-based risk assessment instruments. Each model's power to forec…

  • Using Risk-Adjustment Models to Identify High-Cost Risks

    Richard T Meenan, Michael J Goodman et al.ARTICLEMedical Care2003References: 7

    BACKGROUND: We examine the ability of various publicly available risk models to identify high-cost individuals and enrollee groups using multi-HMO administrative data. METHODS: Five risk-adjustment models (the Global Risk-Adjustment Model [GRAM], Diagnostic Cost Groups [DCGs], Adjusted Clinical Groups [ACGs], RxRisk, and Prior-expense) were estimated on a multi-HMO administrative data set of 1.5 million individual-level observations for 1995-1996…

  • Surveying Physicians

    Terry S Field, Cynthia A Cadoret et al.ARTICLEMedical Care2002References: 50

    BACKGROUND: Surveys serve essential roles in clinical epidemiology and health services research. However, physician surveys frequently encounter problems achieving adequate response rates. Research on enhancing response rates to surveys of the general public has led to the development of Dillman's "Total Design Approach" to the design and conduct of surveys. The impact of this approach on response rates among physicians is uncertain. OBJECTIVE: T…

  • Methods for Analyzing Health Care Utilization and Costs

    Paula Diehr, David Yanez et al.ARTICLEAnnual Review of Public Health1999

    Important questions about health care are often addressed by studying health care utilization. Utilization data have several characteristics that make them a challenge to analyze. In this paper we discuss sources of information, the statistical properties of utilization data, common analytic methods including the two-part model, and some newly available statistical methods including the generalized linear model. We also address issues of study de…

  • The Sensitivity and Specificity of Forecasting High-Cost Users of Medical Care

    Richard T Meenan, Maureen C O'Keeffe-Rosetti et al.ARTICLEMedical Care1999References: 7

    OBJECTIVES: This study compares the ability of 3 risk-assessment models to distinguish high and low expense-risk status within a managed care population. Models are the Global Risk-Assessment Model (GRAM) developed at the Kaiser Permanente Center for Health Research; a logistic version of GRAM; and a prior-expense model. GRAM was originally developed for use in adjusting Medicare payments to health plans. METHODS: Our sample of 98,985 cases was d…

  • Cost-Effectiveness of a Hospital-Based Smoking Cessation Intervention

    Richard T Meenan, Victor J Stevens et al.ARTICLEMedical Care1998References: 25

    OBJECTIVES: This study evaluated the cost-effectiveness of a smoking cessation and relapse-prevention program for hospitalized adult smokers from the perspective of an implementing hospital. It is an economic analysis of a two-group, controlled clinical trial in two acute care hospitals owned by a large group-model health maintenance organization. The intervention included a 20-minute bedside counseling session with an experienced health counselo…

  • The Effect of Increased Prescription Drug Cost-Sharing on Medical Care Utilization and Expenses of Elderly Health Maintenance Organization Members

    Richard E Johnson, Michael J Goodman et al.ARTICLEMedical Care1997References: 12

    OBJECTIVES: The nature and extent of prescription drug benefits for the elderly are a continuing concern for health-care managers and policy makers. This study examined the impact of increased prescription drug cost-sharing on the drug and medical care utilization and expenses of the elderly. METHODS: Two groups of well-insured Medicare risk-based members of a large health maintenance organization (HMO) had their copayments increased in different…

  • Practice Mode and Payment Method

    Mark C Hornbrook, Sylvester E BerkiARTICLEMedical Care1985

    From Kaiser Permanente Center for Health Research, Portland, Oregon †From the Department of Medical Care Organization, The University of Michigan School of Public Health, Ann Arbor, Michigan