Mary Beth Landrum

Biographic Data

ID5535868
NAMEMary Beth Landrum
GIVEN NAMESMary Beth
FAMILY NAMELandrum
SIGNATURELANDRUM M B
AFFILIATIONSHarvard University
ORCID0000-0001-5055-8473
VERIFIEDYes
TOTAL WORKS19
TOTAL CITATIONS11
AUTHOR COUNT19
EDITOR COUNT0
FIRST PUBLICATION YEAR2000
LATEST PUBLICATION YEAR2025
H-INDEX2

  • Racial and Ethnic Differences in Out-of-Pocket Spending for Maternity Care

    Open AccessRebecca A Gourevitch, Jessica Cohen et al.ARTICLEJAMA Health Forum2025

    In this study, differences in out-of-pocket maternity spending among the commercially insured were associated with differences in coinsurance rates. These costs could lead people to forgo needed health care or other basic needs that support health (eg, food or housing). Changes to health plan benefit design could improve equity in out-of-pocket maternity spending and its consequences

  • Use of and Steering to Pharmacies Owned by Insurers and Pharmacy Benefit Managers in Medicare

    Open AccessPragya Kakani, Swayami Navangul et al.ARTICLEJAMA Health Forum2025

    This cross-sectional study found that insurer-PBM firms represented an important portion of the Medicare Part D market, especially for certain drug classes, and that insurer-PBM firms steered patients to their own pharmacies, despite certain pharmacy network protections in Medicare. These findings underscore the need to understand the impacts of insurer-PBM and pharmacy integration on medication access and costs for Medicare patients

  • Practice-Level Spending Variation for Radiation Treatment Episodes Among Older Adults With Cancer

    Open AccessMiranda B Lam, Mary Beth Landrum et al.ARTICLEJAMA Health Forum2025

    In this cross-sectional study, there was substantial variation in practice-level radiation spending and number of fractions for older patients with cancer undergoing radiation treatment both within and across health care markets. This practice-level variation suggests that there may be opportunities for savings under population-based payment models

  • Opportunities for Savings in Risk Arrangements for Oncologic Care

    Open AccessBruce E Landon, Miranda B Lam et al.ARTICLEJAMA Health Forum2023

    These results suggest there may be opportunities for ACOs and other risk-bearing organizations to select or drive referrals to lower-spending oncology practices in many local markets

  • Inference With Difference-in-Differences With a Small Number of Groups

    Slawa Rokicki, Jessica Cohen et al.ARTICLEMedical Care2018References: 32

    BACKGROUND: Difference-in-differences (DID) estimation has become increasingly popular as an approach to evaluate the effect of a group-level policy on individual-level outcomes. Several statistical methodologies have been proposed to correct for the within-group correlation of model errors resulting from the clustering of data. Little is known about how well these corrections perform with the often small number of groups observed in health resea…

  • Developing and Evaluating Composite Measures of Cancer Care Quality

    Cleo A Samuel, Kenneth van Surksum et al.ARTICLEMedical Care2015References: 23

    The empirical-factor domains grouped measures variously by cancer type and care modality. The evidence did not support any single approach for generating cancer care composite measures. Weak associations across different care domains suggest that low-quality and high-quality cancer care delivery may coexist within Veterans Affairs hospitals

  • Racial Disparities in Cancer Care in the Veterans Affairs Health Care System and the Role of Site of Care

    Cleo A Samuel, Mary Beth Landrum et al.ARTICLEAmerican Journal of Public Health2014Cited by: 8References: 45

    Objectives. We assessed cancer care disparities within the Veterans Affairs (VA) health care system and whether between-hospital differences explained disparities. Methods. We linked VA cancer registry data with VA and Medicare administrative data and examined 20 cancer-related quality measures among Black and White veterans diagnosed with colorectal (n = 12 897), lung (n = 25 608), or prostate (n = 38 202) cancer from 2001 to 2004. We used logis…

  • Elderly Breast and Colorectal Cancer Patients’ Clinical Course

    Elizabeth B Lamont, Alan M Zaslavsky et al.ARTICLEMedical Care2014References: 23

    BACKGROUND: The social and medical environments that surround people are each independently associated with their cancer course. The extent to which these characteristics may together mediate patients' cancer care and outcomes is not known. METHODS: Using multilevel methods and data, we studied elderly breast and colorectal cancer patients (level I) within urban social (level II: ZIP code tabulation area) and health care (level III: hospital serv…

  • Representativeness of Participants in the Cancer Care Outcomes Research and Surveillance Consortium Relative to the Surveillance, Epidemiology, and End Results Program

    Paul J Catalano, John Z Ayanian et al.ARTICLEMedical Care2013References: 4

    BACKGROUND: The research goals of the Cancer Care Outcomes Research and Surveillance (CanCORS) Consortium are to determine how characteristics and beliefs of patients, providers, and health care organizations influence the treatments and outcomes of individuals with newly diagnosed lung and colorectal cancers. As CanCORS results will inform national policy, it is important to know how they generalize to the United States population with these can…

  • Adverse Clinical Events Among Medicare Beneficiaries Using Antipsychotic Drugs

    Vicki Fung, Mary Price et al.ARTICLEMedical Care2013References: 5

    OBJECTIVE: Medicare Part D provides formulary protections for antipsychotics but does not exempt these drugs from cost-sharing. We investigated the impact of Part D coverage on antipsychotic drug spending, adherence, and clinical outcomes among beneficiaries with varying indications for use. METHODS: We conducted a historical cohort study of Medicare Advantage beneficiaries who received antipsychotic drugs, with diagnoses of schizophrenia or bipo…

  • Area-Level Variations in Cancer Care and Outcomes

    Nancy L Keating, Mary Beth Landrum et al.ARTICLEMedical Care2012References: 21

    BACKGROUND: : Substantial regional variations in health-care spending exist across the United States; yet, care and outcomes are not better in higher-spending areas. Most studies have focused on care in fee-for-service Medicare; whether spillover effects exist in settings without financial incentives for more care is unknown. OBJECTIVE: : We studied care for cancer patients in fee-for-service Medicare and the Veterans Health Administration (VA) t…

  • Quality of Care Provided to Individual Patients in US Hospitals

    Christine Vogeli, Raymond Kang et al.ARTICLEMedical Care2009References: 19

    Background: There is little national data on the characteristics of patients who receive high quality inpatient care defined as either the receipt of all appliable processes (all-or-none performance) or the proportion of applicable processes received during thier hospitalization. Objectives: To assess the quality of care provided to patients hospitalized for acute myocardial infarction (AMI), heart failure or pneumonia, to describe variations in …

  • The Effect of Managed Care Market Share on Appropriate Use of Coronary Angiography among Traditional Medicare Beneficiaries

    Open AccessEllen Meara, Mary Beth Landrum et al.ARTICLEINQUIRY The Journal of Health…2004

    Evidence suggests that when managed care market share increases in a geographic area, expenditures in Medicare's fee-for-service sector decrease. But it is unclear how expenditure reductions relate to the quality of medical care for traditional Medicare beneficiaries. We estimated how managed care market share varied with the proportion of fee-for-service Medicare beneficiaries who were admitted for acute myocardial infarction (AMI) and underwent…

  • Understanding Individual and Small Area Variation in the Underuse of Coronary Angiography Following Acute Myocardial Infarction

    Pushkal P Garg, Pushkal Garg et al.ARTICLEMedical Care2002References: 35

    BACKGROUND: Underuse of coronary angiography is common among patients with acute myocardial infarction (AMI) and the magnitude of underuse varies across geographic areas. OBJECTIVES: To examine the influence of patient demographic, clinical and hospital characteristics on underuse of coronary angiography, and the contribution of these factors to variation in underuse across geographic regions. RESEARCH DESIGN: Cohort study using data from the Coo…

  • Validating recommendations for coronary angiography following acute myocardial infarction in the elderly

    Open AccessSharon‐Lise T Normand, Sharon-Lise T Normand et al.ARTICLEJournal of Clinical Epidemiology2001

  • Impact of Underuse, Overuse, and Discretionary Use on Geographic Variation in the Use of Coronary Angiography After Acute Myocardial Infarction

    Edward Guadagnoli, Mary Beth Landrum et al.ARTICLEMedical Care2001References: 31

    BACKGROUND: Geographic variation in the use of medical procedures has been well documented. However, it is not known whether this variation is due to differences in use when procedures are indicated, discretionary, or contraindicated. OBJECTIVES: To examine whether use of coronary angiography after acute myocardial infarction (AMI) according to appropriateness criteria varied across geographic regions and whether underuse, overuse, or discretiona…

  • The Treating Physician as Active Gatekeeper in the Recruitment of Research Subjects

    Jerry H Gurwitz, Edward Guadagnoli et al.ARTICLEMedical Care2001References: 6

    BACKGROUND: Institutional Review Boards vary in regard to the conditions imposed on investigators concerning contacting potential subjects to participate in health-services research studies. OBJECTIVE: The impact of more active involvement of the treating physician was examined in the approval process for recruiting study subjects. DESIGN: In recruiting subjects for a Massachusetts-based, multihospital (n = 17), health-services research study of …

  • Discussion of Treatment Options for Early-Stage Breast Cancer

    Nancy L Keating, Jane C Weeks et al.ARTICLEMedical Care2001References: 28

    OBJECTIVES: To describe the physicians with whom breast cancer patients discuss treatment options and assess whether discussing surgical options with a medical oncologist is associated with type of surgery and satisfaction. RESEARCH DESIGN: Medical record abstraction and survey. SUBJECTS: Women with early-stage breast cancer numbering 2,426 in two states-Massachusetts, where the rate of breast-conserving surgery is high, and Minnesota, where it i…

  • The Economic Impacts of the Tobacco Settlement

    Open AccessDonald Cutler, David M Cutler et al.ARTICLEJournal of Policy Analysis and…2000Cited by: 3References: 4

    Recent litigation against the major tobacco companies culminated in a master settlement agreement (MSA) under which the participating companies agreed to compensate most states for Medicaid expenses. Here the terms of the settlement are outlined and its economic implications analyzed using data from Massachusetts. The financial compensation to Massachusetts (and other states) under the MSA is substantial. However, this compensation is dwarfed by …