Bruce E. Landon
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View article: Trends in Discharge to Institutional Post‐Acute Care After Total Joint Arthroplasty in the United States and Canada
Trends in Discharge to Institutional Post‐Acute Care After Total Joint Arthroplasty in the United States and Canada Open
Background Recent payment reforms in the United States have been credited with reducing the use of institutional post‐acute care (PAC) after total knee arthroplasty (TKA) and total hip arthroplasty (THA). This dual‐country study of Canada …
View article: Subspecialization of Surgical Specialties in the US
Subspecialization of Surgical Specialties in the US Open
Importance Subspecialists—physicians with narrower clinical focus—play an increasing role in US health care, particularly in surgery, where most trainees now pursue fellowship training. Yet little is known about the degree of subspecializa…
View article: Optimal Delocalization for Non--Hermitian Eigenvectors
Optimal Delocalization for Non--Hermitian Eigenvectors Open
We prove an optimal order delocalization estimate for the eigenvectors of general $N \times N$ non-Hermitian matrices $X$: $\| {\bf v } \|_\infty \leq C \sqrt{\frac{\log N}{N}}$ with very high probability, for any right or left eigenvector…
View article: Geographic Variation in the Utilization of Cancer Care From Subspecialized Medical Oncologists in the United States, 2008 to 2020
Geographic Variation in the Utilization of Cancer Care From Subspecialized Medical Oncologists in the United States, 2008 to 2020 Open
National Institute on Aging.
View article: Trends in Utilization of Microaxial Flow Pump and Intra-Aortic Balloon Pump Across 3 Countries
Trends in Utilization of Microaxial Flow Pump and Intra-Aortic Balloon Pump Across 3 Countries Open
This cohort study assesses utilization rates of microaxial flow pumps and intra-aortic balloon pumps among older adults who underwent percutaneous coronary interventions in the US, UK, and Canada.
View article: Perioperative Costs of Elective Surgical Procedures in Medicare Advantage Compared With Traditional Medicare
Perioperative Costs of Elective Surgical Procedures in Medicare Advantage Compared With Traditional Medicare Open
Importance The utilization of elective surgical procedures is lower for patients enrolled in Medicare Advantage (MA) than in traditional Medicare (TM), but it remains unclear whether surgical episode costs differ between MA and TM for comp…
View article: Practice-Level Spending Variation for Radiation Treatment Episodes Among Older Adults With Cancer
Practice-Level Spending Variation for Radiation Treatment Episodes Among Older Adults With Cancer Open
Importance Radiation treatments are an essential but expensive component of cancer care. Objective To elucidate trends in radiation spending and identify factors associated with practice-level variations across the US health care system to…
View article: Regionalization of Hip Fracture Care in Five High‐Income Countries
Regionalization of Hip Fracture Care in Five High‐Income Countries Open
Objective To describe differences in regionalization of hip fracture care and the volume‐outcome relationship in five countries. Study Setting and Design We conducted a population‐based cross‐sectional cohort study in Canada, Israel, the N…
View article: Treatment Burden Among Older Adults in the United States, 2022
Treatment Burden Among Older Adults in the United States, 2022 Open
Background Treatment burden refers to the patient‐perceived effort of managing health and health care, which impacts quality of life and engagement in care. International studies of treatment burden have found high rates of treatment burde…
View article: Disparities in Early Lecanemab Uptake Among US Medicare Beneficiaries
Disparities in Early Lecanemab Uptake Among US Medicare Beneficiaries Open
This cross-sectional study examines lecanemeb update among Medicare fee-for-service beneficiaries with Alzheimer disease or mild cognitive impairment and evaluates whether there are disparities among potentially eligible patients.
View article: Gaps in Primary Care Follow‐Up After Hospital Discharge Among Medicare Beneficiaries
Gaps in Primary Care Follow‐Up After Hospital Discharge Among Medicare Beneficiaries Open
Background Timely primary care follow‐up after hospitalization is recommended to monitor recovery and coordinate care. Whether follow‐up differs for vulnerable populations, such as those with frailty and those discharged to skilled nursing…
View article: Precision Alemtuzumab Dosing Results in Day 0 Target Range Achievement in 80% of IEI Patients and Minimizes Risks of GVHD, Clinically Significant Mixed Chimerism, and Secondary Graft Failure
Precision Alemtuzumab Dosing Results in Day 0 Target Range Achievement in 80% of IEI Patients and Minimizes Risks of GVHD, Clinically Significant Mixed Chimerism, and Secondary Graft Failure Open
Introduction Reduced intensity and reduced toxicity conditioning regimens offer low rates of toxicities and superior survival for patients with inborn errors of immunity undergoing allogeneic HCT. However, these approaches can be associate…
View article: Maximum of the characteristic polynomial of i.i.d. matrices
Maximum of the characteristic polynomial of i.i.d. matrices Open
We compute the leading order asymptotic of the maximum of the characteristic polynomial for i.i.d. matrices with real or complex entries. In particular, this result is new even for real Ginibre matrices, which was left as an open problem i…
View article: miRNA and piRNA differential expression profiles in Alzheimer's disease: A potential source of pathology and tool for diagnosis
miRNA and piRNA differential expression profiles in Alzheimer's disease: A potential source of pathology and tool for diagnosis Open
Alzheimer's Disease (AD) is the most prevalent form of dementia and one of the leading causes of death in the United States, and despite our best efforts and recent advancements, a treatment that stops or substantially slows its progressio…
View article: Addressing health equity during design and implementation of health system reform initiatives: a scoping review and framework
Addressing health equity during design and implementation of health system reform initiatives: a scoping review and framework Open
This review synthesises diverse literature about how health equity has been considered across levels of the health system during reform design and implementation, providing to our knowledge, the first comprehensive multi-level approach to …
View article: An unclear partnership: key questions about physician and advanced practice provider collaboration in primary care
An unclear partnership: key questions about physician and advanced practice provider collaboration in primary care Open
More than 83 million people in the United States live in primary care shortage areas. As the US healthcare system faces a contracting primary care physician workforce, advanced practice providers are playing an increasingly important role …
View article: Coding intensity variation in Medicare Advantage
Coding intensity variation in Medicare Advantage Open
Enrollment in Medicare Advantage (MA) plans rose to over 50% of eligible Medicare patients in 2023. Payments to MA plans incorporate risk scores that are largely based on patient diagnoses from the prior year, which incentivizes MA plans t…
View article: Trends and Disparities in Ambulatory Follow-Up After Cardiovascular Hospitalizations
Trends and Disparities in Ambulatory Follow-Up After Cardiovascular Hospitalizations Open
National Institute on Aging.
View article: Associations of Internal Medicine Residency Milestone Ratings and Certification Examination Scores With Patient Outcomes
Associations of Internal Medicine Residency Milestone Ratings and Certification Examination Scores With Patient Outcomes Open
Importance Despite its importance to medical education and competency assessment for internal medicine trainees, evidence about the relationship between physicians’ milestone residency ratings or the American Board of Internal Medicine’s i…
View article: Medicare Transitional Care Management Program and Changes in Timely Postdischarge Follow-Up
Medicare Transitional Care Management Program and Changes in Timely Postdischarge Follow-Up Open
Importance In 2013, Medicare implemented payments for transitional care management (TCM) services, which provide increased reimbursement to clinicians providing ambulatory care to patients after discharge from medical facilities to the com…
View article: Primary Care Physicians In Medicare Advantage Were Less Costly, Provided Similar Quality Versus Regional Average
Primary Care Physicians In Medicare Advantage Were Less Costly, Provided Similar Quality Versus Regional Average Open
The use of many services is lower in Medicare Advantage (MA) compared with traditional Medicare, generating cost savings for insurers, whereas the quality of ambulatory services is higher. This study examined the role of selective contract…
View article: Clinician Risk Tolerance and Rates of Admission From the Emergency Department
Clinician Risk Tolerance and Rates of Admission From the Emergency Department Open
Importance Much remains unknown about the extent of and factors that influence clinician-level variation in rates of admission from the emergency department (ED). In particular, emergency clinician risk tolerance is a potentially important…
View article: Acute Hospital Care at Home in the United States: The Early National Experience
Acute Hospital Care at Home in the United States: The Early National Experience Open
Letters9 January 2024Acute Hospital Care at Home in the United States: The Early National ExperienceDavid M. Levine, MD, MPH, MA, Jeffrey Souza, MA, Jeffrey L. Schnipper, MD, MPH, Thomas C. Tsai, MD, MPH, Bruce Leff, MD, Bruce E. Landon, M…
View article: Opportunities for Savings in Risk Arrangements for Oncologic Care
Opportunities for Savings in Risk Arrangements for Oncologic Care Open
Importance As the US accelerates adoption of alternative payment through global payment models such as Accountable Care Organizations (ACOs) or Medicare Advantage (MA), high spending for cancer care is a potential target for savings. Objec…