Research Topics
| Theodore J IwashynaSummaryAffiliation: Princeton University Country: USA Publications
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Detail Information
Publications
Racial and ethnic differences in place of death: United States, 1993Theodore J Iwashyna
School of Medicine, Harris Graduate School of Public Policy Studies, Center on Aging and Population Research Center, University of Chicago, Chicago, Illinois, USA
J Am Geriatr Soc 50:1113-7. 2002..To examine racial and ethnic differences in place of death, adjusting for likely confounders...- Low use of durable medical equipment by chronically disabled elderlyTheodore J Iwashyna
Department of Medicine, Leonard Davis Institute, and Center for Clinical Epidemiology and Biostatistics, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19130, USA
J Pain Symptom Manage 33:324-30. 2007..Fewer than half the chronically disabled, and less than one-quarter of the newly disabled, received any DME from Medicare. These data suggest underuse of the benefit by the disabled elderly... - Intensive care unit occupancy and patient outcomesTheodore J Iwashyna
Department of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
Crit Care Med 37:1545-57. 2009..Although intensive care units (ICUs) with higher overall patient volume may achieve better outcomes than lower volume ICUs, there are few data on the effects of increasing patient loads on patients within the ICU... - Critical care use during the course of serious illnessTheodore J Iwashyna
Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia 19103, USA
Am J Respir Crit Care Med 170:981-6. 2004..Use is uneven, and a minority of patients who repeatedly use critical care account for disproportionate costs... - Marriage, widowhood, and health-care useTheodore J Iwashyna
Department of Medicine, Hospital of the University of Pennsylvania, Pennsylvania, PA, USA
Soc Sci Med 57:2137-47. 2003..We suggest that these patterns are most consistent with spouses exerting their benefits by functioning as higher-order decision-makers than as home health assistants... - Racial, ethnic, and affluence differences in elderly patients' use of teaching hospitalsTheodore J Iwashyna
Department of Medicine, University of Pennsylvania Medical Center, Philadelphia, USA
J Gen Intern Med 17:696-703. 2002..To understand the role of race, ethnicity, and affluence in elderly patients' use of teaching hospitals when they have that option... - Insurance and racial differences in long-term acute care utilization after critical illnessMeghan B Lane-Fall
Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
Crit Care Med 40:1143-9. 2012..To determine whether insurance coverage and race are associated with long-term acute care hospital utilization in critically ill patients requiring mechanical ventilation... - Uncharted paths: hospital networks in critical careTheodore J Iwashyna
Division of Pulmonary and Critical Care, Department of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
Chest 135:827-33. 2009.... - The relationship between hospital volume and mortality in mechanical ventilation: an instrumental variable analysisJeremy M Kahn
Division of Pulmonary, Allergy and Critical Care, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, 723 Blockley Hall, Philadelphia, PA 19104, USA
Health Serv Res 44:862-79. 2009..To examine the relationship between hospital volume and mortality for nonsurgical patients receiving mechanical ventilation... - The structure of critical care transfer networksTheodore J Iwashyna
Division of Pulmonary and Critical Care, Department of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
Med Care 47:787-93. 2009..These transfers may be particularly important in critical care, where small relative improvements can yield substantial absolute changes in survival... - Perceived barriers to the regionalization of adult critical care in the United States: a qualitative preliminary studyJeremy M Kahn
Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA
BMC Health Serv Res 8:239. 2008..We sought to develop a framework for understanding clinician attitudes toward regionalization and potential barriers to developing a tiered, regionalized system of care in the United States... - Burden of cirrhosis on older Americans and their families: analysis of the health and retirement studyMina O Rakoski
Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109 5362, USA
Hepatology 55:184-91. 2012..Improved care coordination and caregiver support is necessary to optimize management of this frail population... - Race and timeliness of transfer for revascularization in patients with acute myocardial infarctionColin R Cooke
Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Michigan, Ann Arbor, USA
Med Care 49:662-7. 2011..We sought to determine whether the timeliness of hospital transfer and quality of destination hospitals differed between black and white patients... - Long-term acute care hospital utilization after critical illnessJeremy M Kahn
Division of Pulmonary, Allergy, and Critical Care, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, Blockley Hall 723, 423 Guardian Dr, Philadelphia, PA 19104, USA
JAMA 303:2253-9. 2010..Long-term acute care hospitals have emerged as a novel approach for the care of patients recovering from severe acute illness, but the extent and increases in their activity at the national level are unknown... - The effect of insurance status on mortality and procedural use in critically ill patientsSarah M Lyon
Division of Pulmonary, Allergey, and Critical Care Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
Am J Respir Crit Care Med 184:809-15. 2011..Lack of health insurance maybe an independent risk factor for mortality and differential treatment in critical illness... - Critical illness outcomes in specialty versus general intensive care unitsJason P Lott
University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
Am J Respir Crit Care Med 179:676-83. 2009..General intensive care units (ICUs) provide care across a wide range of diagnoses, whereas specialty ICUs provide diagnosis-specific care. Risk-adjusted outcome differences across such units are unknown... - Effect of work-hours regulations on intensive care unit mortality in United States teaching hospitalsMeeta Prasad
Division of Pulmonary, Allergy, and Critical Care Medicine MP, JDC, JMK, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
Crit Care Med 37:2564-9. 2009..The United States instituted restrictions on resident work-hours in July 2003. The clinical impact of this reform on critically ill patients is unknown... - Regional variation in the association between advance directives and end-of-life Medicare expendituresLauren Hersch Nicholas
Institute for Social Research, University of Michigan, Ann Arbor, MI 48104, USA
JAMA 306:1447-53. 2011..It is unclear if advance directives (living wills) are associated with end-of-life expenditures and treatments... - Potential value of regionalized intensive care for mechanically ventilated medical patientsJeremy M Kahn
Division of Pulmonary, Allergy, and Critical Care, University of Pennsylvania School of Medicine, 723 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104, USA
Am J Respir Crit Care Med 177:285-91. 2008..Regionalization has been proposed as a method to improve outcomes for medical patients receiving mechanical ventilation in the intensive care unit... - The lack of effect of market structure on hospice useTheodore J Iwashyna
Department of Medicine, Hospital of the University of Pennsylvania, USA
Health Serv Res 37:1531-51. 2002.... - Interhospital transfers among Medicare beneficiaries admitted for acute myocardial infarction at nonrevascularization hospitalsTheodore J Iwashyna
Department of Internal Medicine, University of Michigan Medical School, 300 North Ingalls, Ann Arbor, MI 48109 5419, USA
Circ Cardiovasc Qual Outcomes 3:468-75. 2010.... - Physician attitudes toward regionalization of adult critical care: a national surveyJeremy M Kahn
Division of Pulmonary, Allergy, and Critical Care, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
Crit Care Med 37:2149-54. 2009..Regionalization has been proposed as a method to improve outcomes for patients with critical illness. We sought to determine intensivist physician attitudes and potential barriers to the regionalization of adult critical care... - Guided transfer of critically ill patients: where patients are transferred can be an informed choiceTheodore J Iwashyna
Department of Medicine, University of Michigan, Ann Arbor VA HSR and D Center of Excellence, Ann Arbor, Michigan, USA
Curr Opin Crit Care 17:641-7. 2011.... - Implementation challenges in the intensive care unit: the why, who, and how of daily interruption of sedationMelissa A Miller
Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI 48109 5360, USA
J Crit Care 27:218.e1-7. 2012..We sought to identify new barriers to daily interruption of sedation... - Limiting the spread of highly resistant hospital-acquired microorganisms via critical care transfers: a simulation studyUmanka H Karkada
School of Information, University of Michigan, Ann Arbor, MI, USA
Intensive Care Med 37:1633-40. 2011..We examine the extent to which transfers of critically ill patients could be a vector for the wide spread of highly resistant organisms, and compare the efficiency of different approaches to targeting infection control resources... - Do hospitals alter patient care effort allocations under pay-for-performance?Lauren Hersch Nicholas
Institute for Social Research and Center for Healthcare Outcomes and Policy, University of Michigan, 426 Thompson St, Ann Arbor, MI 48104, USA
Health Serv Res 46:61-81. 2011..To determine whether hospitals increase efforts on easy tasks relative to difficult tasks to improve scores under pay-for-performance (P4P) incentives... - The impact of residents, interns, and attendings on inpatient laboratory ordering patterns: a report from one university's hospitalist serviceTheodore J Iwashyna
Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
Acad Med 86:139-45. 2011..To examine the laboratory test ordering patterns of interns to determine the effects of more senior residents' and attendings' supervision on trainees' patterns and residents' perceptions of control in test ordering... - Long-term cognitive impairment and functional disability among survivors of severe sepsisTheodore J Iwashyna
Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
JAMA 304:1787-94. 2010..Although the incidence of severe sepsis is high and increasing, the magnitude of patients' long-term cognitive and functional limitations after sepsis is unknown... - Which patients and where: a qualitative study of patient transfers from community hospitalsEmily A Bosk
Department of Sociology and School of Social Work, University of Michigan, Ann Arbor, MI 48109 5419, USA
Med Care 49:592-8. 2011..A microlevel analysis of the processes of patient transfer has not earlier been carried out... - Variation in long-term acute care hospital use after intensive careJeremy M Kahn
1University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
Med Care Res Rev 69:339-50. 2012..These findings highlight the need for research into LTAC admission criteria and the incentives driving variation in LTAC utilization across hospitals... - Small area variations in out-of-hospital cardiac arrest: does the neighborhood matter?Comilla Sasson
University of Michigan, Ann Arbor, Michigan, USA
Ann Intern Med 153:19-22. 2010..The incidence and outcomes of out-of-hospital cardiac arrest vary widely across cities. It is unknown whether similar differences exist at the neighborhood level... - Disease-specific patterns of hospice and related healthcare use in an incidence cohort of seriously ill elderly patientsTheodore J Iwashyna
Department of Medicine, Hospital of the University at Pennsylvania, Philadelphia, Pennsylvania, USA
J Palliat Med 5:531-8. 2002..7%. Among decedents with cancer diagnoses, rates vary from 15.2% to 35.2%. For the cohort overall, 14.2% of male decedents and 12.4% of female decedents used hospice. Patterns of end-of-life care vary substantially according to diagnosis... - Organisational characteristics associated with the use of daily interruption of sedation in US hospitals: a national studyMelissa A Miller
Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
BMJ Qual Saf 21:145-51. 2012..The authors test the hypothesis that specific hospital organisational characteristics are associated with routine use of DIS... - Child injury risks are close to home: parent psychosocial factors associated with child safetyKarin V Rhodes
Division of Health Policy Research, Department of Emergency Medicine, School of Social Policy and Practice, University of Pennsylvania School of Medicine, 3815 Walnut St, Philadelphia, PA 19104, USA
Matern Child Health J 11:269-75. 2007..In an urban pediatric Emergency Department, we examined the relationship between parental depression, social support, and domestic conflict and child safety behaviors... - Longitudinal influences of friends and parents upon unprotected vaginal intercourse in adolescentsCatherine Kim
Department of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
Contraception 83:138-44. 2011..Both friends and parents may influence occurrence of adolescent sexual intercourse, but these influences have not been studied together and prospectively... - Wide variation and rising utilization of stroke magnetic resonance imaging: data from 11 statesJames F Burke
Department of Veterans Affairs, VA Center for Clinical Management and Research, Ann Arbor VA Healthcare System, MI, USA
Ann Neurol 71:179-85. 2012..Magnetic resonance imaging (MRI) is more accurate than computed tomography (CT) for the diagnosis of stroke, but is more costly and time-consuming. We sought to describe changes in MRI utilization from 1999 to 2008... - Effectiveness of adjuvant fluorouracil in clinical practice: a population-based cohort study of elderly patients with stage III colon cancerTheodore J Iwashyna
Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
J Clin Oncol 20:3992-8. 2002..These findings support the continued use of adjuvant 5-FU in the general population of elderly patients with stage III colon cancer and suggest that oncologists in the community are practicing at a high level of effectiveness... - A polyurethane cuffed endotracheal tube is associated with decreased rates of ventilator-associated pneumoniaMelissa A Miller
Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
J Crit Care 26:280-6. 2011..The aim of this study was to determine whether the use of a polyurethane-cuffed endotracheal tube would result in a decrease in ventilator-associated pneumonia rate... - The health impact of health care on families: a matched cohort study of hospice use by decedents and mortality outcomes in surviving, widowed spousesNicholas A Christakis
Department of Health Care Policy, Harvard Medical School, 180 Longwood Avenue, Boston, MA 02115, USA
Soc Sci Med 57:465-75. 2003..Health care may have positive, group-level health "externalities": it may affect the health not only of patients but also of patients' family members... - Care after the onset of serious illness: a novel claims-based dataset exploiting substantial cross-set linkages to study end-of-life careNicholas A Christakis
Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts 02115, USA
J Palliat Med 5:515-29. 2002..Detailed health information about cohort members' spouses was also collected. We conclude by highlighting the types of analyses that can be conducted in this data set... - Association of RBC transfusion with mortality in patients with acute lung injuryGiora Netzer
Division of Pulmonary and Critical Care Medicine, University of Maryland School of Medicine, MSTF Bldg, Room 800, 685 W Baltimore St, Baltimore, MD 21201, USA
Chest 132:1116-23. 2007..RBC transfusion has been associated with increased morbidity and mortality in a variety of clinical settings. We assessed the effect of RBC transfusion on in-hospital mortality in patients with acute lung injury (ALI)... - Differences in hospice use between black and white patients during the period 1992 through 2000Beth Han
National Center for Health Statistics, Hyattsville, Maryland, USA
Med Care 44:731-7. 2006..We tested differences in length of hospice survival from hospice enrollment to death between black and white patients during this period...