Laurence F McMahon

Datos Biográficos

ID5533919
NOMBRELaurence F McMahon
NOMBRESLaurence F
APELLIDOMcMahon
FIRMAMCMAHON L F
AFILIACIONESUniversity of Michigan
ORCID0000-0001-6625-3594
VERIFICADONo
TOTAL DE OBRAS18
TOTAL DE CITAS5
TOTAL COMO AUTOR18
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN1977
AÑO MÁS RECIENTE DE PUBLICACIÓN2003
ÍNDICE H1

  • Personalized Targeted Mailing Increases Mammography Among Long-Term Noncompliant Medicare Beneficiaries

    R Van Harrison, Nancy K Janz et al.ARTICLEMedical Care2003Referencias: 19

    OBJECTIVES: The study purpose was to increase mammography screening among older women by identifying female Medicare beneficiaries without a recent mammogram and assesses the cost-effectiveness of a personalized targeted mailing encouraging them to have a mammogram. METHODS: A randomized paired controlled trial included 1229 pairs of women matched on zip code, race, and urban or rural county. Postintervention mammography claims were measured from…

  • Racial and Gender Variation in Use of Diagnostic Colonic Procedures in the Michigan Medicare Population

    Laurence F McMahon, Robert A Wolfe et al.ARTICLEMedical Care1999Referencias: 18

    BACKGROUND: There is accumulating evidence that screening programs can alter the natural history of colorectal cancer, a significant cause of mortality and morbidity in the US. Understanding how the technology to diagnose colonic diseases is utilized in the population provides insight into both the access and processes of care. METHOD: Using Medicare Part B billing files from the state of Michigan from 1986 to 1989 we identified all procedures us…

  • Comparing the Use of Diagnostic Tests in Canadian and US Hospitals

    Steven Katz, Steven J Katz et al.ARTICLEMedical Care1996Referencias: 20

    Although Americans pay much more for a day in the hospital than Canadians, we know little about whether inpatient physician practice patterns might explain some of this difference. The authors compared the utilization of all diagnostic imaging (plain radiographs, computed tomography (CT) and magnetic resonance imaging (MRI) scanning, ultrasound, nuclear medicine and vascular studies) and selected laboratory tests (hematology, basic biochemistry, …

  • The Integrated Inpatient Management Model

    Annette M Bernard, Rodney A Hayward et al.ARTICLEMedical Care1995

    The Integrated Inpatient Management Model was a 2.5-year controlled prospective trial of using a clinical information system to direct and monitor physician and hospital practice on general medicine services of an 880-bed university hospital. For the over 2,000 admissions on both a control service and the intervention service, the mean length of stay (LOS) decreased when compared with historic norms (0.68 and 0.95 days respectively; P < 0.01 for …

  • Do Attending or Resident Physician Practice Styles Account for Variations in Hospital Resource Use

    Rodney A Hayward, Willard G Manning et al.ARTICLEMedical Care1994

    Prospective payment has created incentives for hospitals to identify physicians who are responsible for high or excessive rates of resource use. However, at teaching hospitals it is unclear whether individual attending or resident physicians account for a substantial portion of the observed variations in hospital resource use. To explore this issue, case-mix adjusted hospital length of stay and ancillary resource use at a university teaching hosp…

  • An Evaluation of Generic Screens for Poor Quality of Hospital Care on a General Medicine Service

    Rodney A Hayward, Annette M Bernard et al.ARTICLEMedical Care1993

    In this study, 675 general medicine admissions at a university teaching hospital were reviewed to evaluate six potential generic quality screens: 1) in-hospital death; 2) 28-day early readmission; 3) low patient satisfaction; 4) worsening severity of illness (as determined by an increase in Laboratory Acute Physiology and Chronic Health Evaluation APACHE-L); and 5) deviations from expected hospital length of stay; and 6) expected ancillary resour…

  • Socioeconomic Influence on Small Area Hospital Utilization

    Laurence F McMahon, Robert A Wolfe et al.ARTICLEMedical Care1993

    Health care policy makers, concerned with the rising cost of health care, have focused on the observed variation in the use of hospitals as a potential area in which to lower health care costs, i.e., if hospital utilization can be decreased, health care costs may also decline. However, it is crucial that the reasons for the observed variation in the current practice be understood or attempts to reduce costs may lead to policies that harm groups o…

  • Apache-L

    Laurence F McMahon, Rodney A Hayward et al.ARTICLEMedical Care1992

    A principal concern regarding Medicare's diagnosis-related group (DRG)-based prospective payment system is whether hospitals caring for more severely ill patients may be undercompensated for the services they provide. Research on possible inequities in hospital payment has been hampered by the absence of an objective, easily obtained, and valid measure of patients' severity of illness. Because laboratory data are objective and computerized in mos…

  • The Measurement of Mortality

    Steven T Fleming, Laurence F McMahon et al.ARTICLEMedical Care1991

    This paper describes the development of risk-adjusted mortality indices (RAMI) using 1985 MEDPAR data from 657 hospitals. The RAMI methodology is adopted from the Commission on Professional and Hospital Activities, however, both inhospital and post-discharge deaths are counted within time windows that vary by clinical condition. Five different RAMI measures (expected deaths/observed deaths) are developed, compared, and aggregated into various hos…

  • A critique of the Harvard Resource-Based Relative Value Scale

    Laurence F McMahonARTICLEAmerican Journal of Public Health1990Citada por: 5Referencias: 21

    Physician payment reform has assumed a prominent place in the national health policy debate. A key component in this debate is the Harvard Resource-Based Relative Value Scale (RBRVS). The Harvard research effort relied upon several necessary methodologic assumptions and compromises that must be understood to appreciate the RBRVS's strengths and weaknesses. For example, the Harvard group surveyed too few cases to cover the range of clinical practi…

  • Measuring Hospital Performance

    Susan I Desharnais, Susan DesHarnais et al.ARTICLEMedical Care1990

    In this study we used information from discharge abstracts to develop three different risk-adjusted measures of hospital performance: a Risk-Adjusted Mortality Index, a Risk-Adjusted Readmissions Index, and a Risk-Adjusted Complications Index. The adjustments have face validity, and appear to account for much of the variation across hospitals in the rates of these adverse events. The indexes are stable over time, and are not biased with respect t…

  • The Influence of Attending Physician Subspecialization on Hospital Length of Stay

    Annette M Bernard, Letitia R Shapiro et al.ARTICLEMedical Care1990

    Bernard, Annette M. MD, MS; Shapiro, Letitia R. MA; McMahon, Laurence F. Jr. MD, MPH Author Information

  • Small-Area Variation in Hospital Discharge Rates

    CATHERINE G MCLAUGHLIN, Daniel P Normolle et al.ARTICLEMedical Care1989

    Although numerous studies have been made of the determinants of small-area variation in hospital discharge rates, there is still disagreement about the role of socioeconomic factors. The lack of consensus stems, in part, from the difficulty in comparing results across studies that use different units and methods of analysis. Many of the studies using well-defined hospital service areas did not have the data needed to conduct a controlled analysis…

  • Variation in Hospital Admissions Among Small Areas

    Laurence F McMahon, Robert A Wolfe et al.ARTICLEMedical Care1989

    Analysis of age-adjusted hospital admission profiles among small geographic areas has shown marked variation in hospital admissions for both surgical and medical cases in areas ranging from Maine to Manitoba. Much of the work has been led by John Wennberg and has focused on rural areas. This study examines the degree of variation in hospital admissions in small areas in the state of Michigan to determine whether those diseases that demonstrated h…

  • Prior Hospitalization Experience of DRG Outliers Versus Inliers

    Laurence F McMahon, Letitia R Shapiro et al.ARTICLEMedical Care1988

    The Diagnosis-Related Group (DRG)-based Medicare Prospective Payment System has raised a number of concerns. One major concern has centered on both the definition of outlier patients and how hospitals are to be paid for their care. The epidemiology of outlier patients, however, has received relatively little attention. Using a retrospective database, we constructed a case control study in which the cases were DRG outliers and the control patients…

  • The Risk-Adjusted Mortality Index

    Susan I Desharnais, Susan DesHarnais et al.ARTICLEMedical Care1988

    The Commission on Professional and Hospital Activities (CPHA) developed the Risk-Adjusted Mortality Index (RAMI), a method for comparing hospital death rates using existing abstract or billing data. The method is comprehensive insofar as it includes all payers and all types of cases except neonates. RAMI was designed to differentiate among admissions on the basis of the patient characteristics that increase or reduce the risk of dying in the hosp…

  • Variation in Resource Use Within Diagnosis-related Groups

    Laurence F McMahon, Robert C Newbold et al.ARTICLEMedical Care1986

    The diagnosis-related group (DRG)-based Medicare prospective payment system pays hospitals a fixed amount for the care of similar patients. The DRG definitions serve as the modifier of payment for Medicare patients. The dependence on these patient definitions raises many questions, among them the reason(s) for observed resource variability within a DRG. Various severity-of-illness measures have been shown to account for some of the resource varia…

  • A Cost Benefit Analysis of Continued Stay Certification

    Richard F Averill, Laurence F McMahonARTICLEMedical Care1977

    A large portion of the resources of the Professional Standards Review Organization Program have been directed toward the review of inpatients to determine their need for continued hospitalization. The primary goal of this review process is the containment of hospital costs through the elimination of unnecessary patient hospitalization. A cost benefit analysis of this review process shows that the potential financial savings accrued are unlikely t…