Diagnosis-Related Groups

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  Subject Areas on Research

  • A clinical economics workstation for risk-adjusted health care cost management. 
  • A comparison of health care use for physician-referred and self-referred episodes of outpatient physical therapy. 
  • A method for adjusting capitation payments to managed care plans using multivariate patterns of health and functioning: the experience of Social/Health Maintenance Organizations. 
  • A multidimensional approach to case mix for home health services. 
  • A multivariate analysis of disability and health, and its change over time in the National Channeling Demonstration data. 
  • A multivariate approach for classifying hospitals and computing blended payment rates. 
  • A new ambulatory classification and funding model for radiation oncology: non-admitted patients in Victorian hospitals. 
  • A study of clinicians' responses to abnormal laboratory data as a function of diagnostic related group and test classification by College of American Pathologists criteria. 
  • Accuracy of ICD-9-CM coding for the identification of patients with acute ischemic stroke: effect of modifier codes. 
  • Advance care planning in nursing homes and assisted living communities. 
  • Are for-profit hospital conversions harmful to patients and to Medicare? 
  • Association of early physician follow-up and 30-day readmission after non-ST-segment-elevation myocardial infarction among older patients. 
  • Association of patient case-mix adjustment, hospital process performance rankings, and eligibility for financial incentives. 
  • Bundled Payment and Care of Acute Stroke: What Does it Take to Make it Work? 
  • Case mix controlled service use and expenditures in the social/health maintenance organization demonstration. 
  • Case mix-adjusted cost of colectomy at low-, middle-, and high-volume academic centers. 
  • Case shifting and the Medicare Prospective Payment System. 
  • Case-mix adjusted analyses of service utilization for a Medicaid health insuring organization in Philadelphia. 
  • Characteristics of adult primary care patients as predictors of future health services charges. 
  • Children's health care use in the Healthy Kids Program. 
  • Comparison of hospital costing methods in an economic evaluation of a multinational clinical trial. 
  • Congenital Heart Surgery Case Mix Across North American Centers and Impact on Performance Assessment. 
  • Congenital heart operations performed in the first year of life: does geographic variation exist? 
  • Controlling risk in capitation payment. Multivariate definitions of risk groups. 
  • Conversion vs Primary Total Hip Arthroplasty: Increased Cost of Care and Perioperative Complications. 
  • Defining emergency department asthma visits for public health surveillance, North Carolina, 2008-2009. 
  • Diagnosis-Related Group-Based Payments for Adult Spine Deformity Surgery Significantly Vary across Centers: Results from a Multicenter Prospective Cohort Study. 
  • Does improving geographic access to VA primary care services impact patients' patterns of utilization and costs? 
  • Dollars and stents: the economics of drug-eluting stents. 
  • Duke Case-Mix System (DUMIX) for ambulatory health care. 
  • Effects of teaching on hospital costs. 
  • Ethics, law, and medicine: today's crossroads. 
  • Evaluating diagnosis-based risk-adjustment methods in a population with spinal cord dysfunction. 
  • Factors influencing morning report case presentations. 
  • Forecasting hospital expenditure in Victoria: lessons from Europe and Canada. 
  • Functionally and medically defined subgroups of nursing home populations. 
  • Health care needs of homeless adults at a nurse-managed clinic. 
  • Hospital drug formularies and use of hospital services. 
  • Hospital readmissions reduction program. 
  • Hospital variation in risk-standardized hospital admission rates from US EDs among adults. 
  • Impact of case type, length of stay, institution type, and comorbidities on Medicare diagnosis-related group reimbursement for adult spinal deformity surgery. 
  • Impact of physician assistant care on office visit resource use in the United States. 
  • Increase in tracheostomy for prolonged mechanical ventilation in North Carolina, 1993-2002. 
  • Influences on the use of capital by public hospitals. 
  • Maintaining quality of care 24/7 in a nontrauma surgical intensive care unit. 
  • Maximizing the functional status of geriatric patients in an acute community hospital setting. 
  • Measuring outcomes of care for adolescents with emotional and behavioral problems. 
  • Medicare Advantage Plans Pay Hospitals Less Than Traditional Medicare Pays. 
  • Medicare prospective payment and posthospital transfers to subacute care. 
  • Medicare prospective payment and the use of medical technologies in hospitals. 
  • Pharmacoeconomic analysis of sertraline treatment of depression in patients with unstable angina or a recent myocardial infarction. 
  • Physician responses to abnormal laboratory data. 
  • Prospective payment and psychiatric discharges from general hospitals with and without psychiatric units. 
  • Quantitative thallium-201 single photon emission computed tomography after oral dipyridamole for assessing the presence, anatomic location and severity of coronary artery disease. 
  • Relationship between occurrence of surgical complications and hospital finances. 
  • Self-organizing map for cluster analysis of a breast cancer database. 
  • Should Medical Severity-Diagnosis Related Group Classification Be Utilized for Reimbursement? An Analysis of Elixhauser Comorbidities and Cost of Care. 
  • Social/health maintenance organization and fee-for-service health outcomes over time. 
  • Spinal surgery: variations in health care costs and implications for episode-based bundled payments. 
  • Stratification of complexity improves the utility and accuracy of outcomes analysis in a Multi-Institutional Congenital Heart Surgery Database: Application of the Risk Adjustment in Congenital Heart Surgery (RACHS-1) and Aristotle Systems in the Society of Thoracic Surgeons (STS) Congenital Heart Surgery Database. 
  • The American College of Surgeons Commission on Cancer and the American Cancer Society. The National Cancer Data Base report on age, gender, treatment, and outcomes of patients with chronic lymphocytic leukemia. 
  • The complexity of chronic disease at later ages: practical implications for prospective payment and data collection. 
  • The impact of for-profit hospital status on the care and outcomes of patients with non-ST-segment elevation myocardial infarction: results from the CRUSADE Initiative. 
  • The impact of glaucoma coding in a large claims database. 
  • The impact of statistical adjustment on economic profiles of interventional cardiologists. 
  • The need for multiple measures of hospital quality: results from the Get with the Guidelines-Heart Failure Registry of the American Heart Association. 
  • The role of cardiac risk factor burden in diagnosing acute coronary syndromes in the emergency department setting. 
  • The use of Grade of Membership analysis to evaluate and modify diagnosis-related groups. 
  • The use of patient mix-adjusted control charts to compare in-hospital costs of care. 
  • Toward a level playing field: predictive factors for the outcomes of mental health treatment for adolescents. 
  • Use of Medicare services before and after introduction of the prospective payment system. 
  • Utilization of hospital services: the roles of teaching, case mix, and reimbursement. 
  • Variation in US hospital emergency department admission rates by clinical condition. 
  • Variation in use of blood transfusion in coronary artery bypass graft surgery. 
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  Keywords of People

  • O'Connor, Christopher Michael, Adjunct Professor in the Department of Medicine, Medicine, Clinical Pharmacology