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Dive into the research topics where Deborah Korenstein is active.

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Featured researches published by Deborah Korenstein.


JAMA Internal Medicine | 2012

Overuse of health care services in the United States: an understudied problem.

Deborah Korenstein; Raphael Falk; Elizabeth A. Howell; Tara F. Bishop; Salomeh Keyhani

BACKGROUND Overuse, the provision of health care services for which harms outweigh benefits, represents poor quality and contributes to high costs. A better understanding of overuse in US health care could inform efforts to reduce inappropriate care. We performed an extensive search for studies of overuse of therapeutic procedures, diagnostic tests, and medications in the United States and describe the state of the literature. METHODS We searched MEDLINE (1978-2009) for studies measuring US rates of overuse of procedures, tests, and medications, augmented by author tracking, reference tracking, and expert consultation. Four reviewers screened titles; 2 reviewers screened abstracts and full articles and extracted data including overuse rate, type of service, clinical area, and publication year. RESULTS We identified 172 articles measuring overuse: 53 concerned therapeutic procedures; 38, diagnostic tests; and 81, medications. Eighteen unique therapeutic procedures and 24 diagnostic services were evaluated, including 10 preventive diagnostic services. The most commonly studied services were antibiotics for upper respiratory tract infections (59 studies), coronary angiography (17 studies), carotid endarterectomy (13 studies), and coronary artery bypass grafting (10 studies). Overuse of carotid endarterectomy and antibiotics for upper respiratory tract infections declined over time. CONCLUSIONS The robust evidence about overuse in the United States is limited to a few services. Reducing inappropriate care in the US health care system likely requires a more substantial investment in overuse research.


The Lancet | 2017

Evidence for overuse of medical services around the world

Shannon Brownlee; Kalipso Chalkidou; Jenny Doust; Adam G. Elshaug; Paul Glasziou; Iona Heath; Somil Nagpal; Vikas Saini; Divya Srivastava; Kelsey Chalmers; Deborah Korenstein

Overuse, which is defined as the provision of medical services that are more likely to cause harm than good, is a pervasive problem. Direct measurement of overuse through documentation of delivery of inappropriate services is challenging given the difficulty of defining appropriate care for patients with individual preferences and needs; overuse can also be measured indirectly through examination of unwarranted geographical variations in prevalence of procedures and care intensity. Despite the challenges, the high prevalence of overuse is well documented in high-income countries across a wide range of services and is increasingly recognised in low-income countries. Overuse of unneeded services can harm patients physically and psychologically, and can harm health systems by wasting resources and deflecting investments in both public health and social spending, which is known to contribute to health. Although harms from overuse have not been well quantified and trends have not been well described, overuse is likely to be increasing worldwide.


Academic Medicine | 2011

The Incidence and Predictors of Job Burnout in First-Year Internal Medicine Residents: A Five-Institution Study

Jonathan Ripp; Mark W. Babyatsky; Robert Fallar; Hasan Bazari; Lisa M. Bellini; Cyrus Kapadia; Joel Katz; Mark S. Pecker; Deborah Korenstein

Purpose Job burnout is prevalent among U.S. internal medicine (IM) residents and may lead to depression, suboptimal patient care, and medical errors. This study sought to identify factors predicting new burnout to better identify at-risk residents. Method The authors administered surveys to first-year IM residents at five institutions twice between June 2008 and June 2009, linking individual pre- and postresponses. Surveys measured job burnout, sleepiness, personality traits, and other characteristics. Burnout was defined using the most commonly identified definition and another stricter definition. Results Of 263 eligible residents, 185 (70%) completed both surveys. Among 114 residents who began free of burnout and completed both surveys, 86 (75%) developed burnout, with no differences across institutions. They were significantly more likely to report a disorganized personality style (9 versus 0; 11% versus 0%; P = .019) and less likely to report receiving regular performance feedback (34 versus 13; 63% versus 87%; P = .057). Using a stricter definition, 50% (78/156) of residents developed burnout. They were less likely to plan to pursue subspecialty training (49 versus 63; 78% versus 93%; P = .016) or have a calm personality style (59 versus 70; 77% versus 90%; P = .029). There were no significant associations between burnout incidence and duty hours, clinical rotation, demographics, social supports, loan debt, or psychiatric history. Conclusions This study identified a high burnout incidence. The associations observed between burnout incidence and personality style, lack of feedback, and career choice uncertainty may inform interventions to prevent burnout and associated hazards.


Archives of Surgery | 2010

Physician Attitudes Toward Industry: A View Across the Specialties

Deborah Korenstein; Salomeh Keyhani; Joseph S. Ross

OBJECTIVES To explore attitudes of physicians from all specialties toward gifts from and interactions with the pharmaceutical and medical device industries. DESIGN Anonymous, cross-sectional survey distributed and collected between June 1 and September 1, 2008. SETTING Hospitals in the Mount Sinai School of Medicine consortium in the New York, New York, metropolitan area. PARTICIPANTS Faculty and trainee physicians from all clinical departments. MAIN OUTCOME MEASURES Attitudes toward industry interactions and gifts and their appropriateness measured on 4-point Likert scales. RESULTS A total of 590 physicians and medical students completed the survey (response rate, 67.0%); 351 (59.5%) were male, 230 (39.0%) were attending physicians, and 131 (23.7%) of 553 (excluding medical students) were from surgical specialties. Attitudes toward industry and gifts were generally positive: 72.2% found sponsored lunches appropriate, whereas 25.4% considered large gifts appropriate. Surgeons, trainees, and those unfamiliar with institutional policies on industry interactions held more positive attitudes than others and were more likely to deem some gifts appropriate, including industry funding of residency programs and, among surgeons, receiving meals, travel expenses, and payments for attending lectures. Nonattending physicians held more positive attitudes toward receiving meals in clinical settings, textbooks, and samples. CONCLUSIONS Physicians continue to hold positive attitudes toward marketing-oriented activities of the pharmaceutical and device industries. Changes in medical culture and physician education focused on surgeons and trainees may align physician attitudes with current policy trends.


Medical Care | 2013

Overuse and Systems of Care A Systematic Review

Salomeh Keyhani; Raphael Falk; Elizabeth A. Howell; Tara F. Bishop; Deborah Korenstein

Background:Current health care reform efforts are focused on reorganizing health care systems to reduce waste in the US health care system. Objective:To compare rates of overuse in different health care systems and examine whether certain systems of care or insurers have lower rates of overuse of health care services. Data Sources:Articles published in MEDLINE between 1978, the year of publication of the first framework to measure quality, and June 21, 2012. Study Selection:Included studies compared rates of overuse of procedures, diagnostic tests, or medications in at least 2 systems of care. Data Extraction:Four reviewers screened titles; 2 reviewers screened abstracts and full articles and extracted data. Results:We identified 7 studies which compared rates of overuse of 5 services across multiple different health care settings. National rates of inappropriate coronary angiography were similar in Medicare HMOs and Medicare FFS (13% vs. 13%, P=0.33) and in a state-based study comparing 15 hospitals in New York and 4 hospitals in a Massachusetts-managed care plan (4% vs. 6%, P>0.1). Rates of carotid endarterectomy in New York State were similar in Medicare HMOs and Medicare FFS plans (8.4% vs. 8.6%, P=0.55) but nonrecommended use of antibiotics for the treatment of upper respiratory infection was higher in a managed care organization than a FFS private plan (31% vs. 21%, P=0.02). Rates of inappropriate myocardial perfusion imaging were similar in VA and private settings (22% vs. 16.6%, P=0.24), but rates of inappropriate surveillance endoscopy in the management of gastric ulcers were higher in the VA compared with private settings (37.4% vs. 20.4%–23.3%, P<0.0001). Conclusions:The available evidence is limited but there is no consistent evidence that any 1 system of care has been more effective at minimizing the overuse of health care services. More research is necessary to inform current health care reform efforts directed at reducing overuse.


JAMA Internal Medicine | 2016

2016 Update on Medical Overuse: A Systematic Review

Daniel J. Morgan; Sanket S. Dhruva; Scott M. Wright; Deborah Korenstein

Importance Overuse of medical care is an increasingly recognized problem in clinical medicine. Objective To identify and highlight original research articles published in 2015 that are most likely to reduce overuse of medical care, organized into 3 categories: overuse of testing, overtreatment, and questionable use of services. The articles were reviewed and interpreted for their importance to clinical medicine. Evidence Review A structured review of English-language articles on PubMed published in 2015 and review of tables of contents of relevant journals to identify potential articles that related to medical overuse in adults. Findings Between January 1, 2015, and December 31, 2015, we reviewed 1445 articles, of which 821 addressed overuse of medical care. Of these, 112 were deemed most relevant based on their originality, methodologic quality, and number of patients potentially affected. The 10 most influential articles were selected by consensus using the same criteria. Findings included a doubling of specialty referrals and advanced imaging for simple headache (from 6.7% in 2000 to 13.9% in 2010); unnecessary hospital admission for low-risk syncope, often leading to adverse events; and overly frequent colonoscopy screening for 34% of patients. Overtreatment was common in the following areas: 1 in 4 patients with atrial fibrillation at low risk for thromboembolism received anticoagulation; 94% of testosterone replacement therapy was administered off guideline recommendations; 91% of patients resumed taking opioids after overdose; and 61% of patients with diabetes were treated to potentially harmfully low hemoglobin A1c levels (<7%). Findings also identified medical practices to question, including questionable use of treatment of acute low-back pain with cyclobenzaprine and oxycodone/acetaminophen; of testing for Clostridium difficile with molecular assays; and serial follow-up of benign thyroid nodules. Conclusions and Relevance The number of articles on overuse of medical care nearly doubled from 2014 to 2015. The present review promotes reflection on the top 10 articles and may lead to questioning other non-evidence-based practices.


Medical Care | 2012

The relationship between geographic variations and overuse of healthcare services: a systematic review.

Salomeh Keyhani; Raphael Falk; Tara F. Bishop; Elizabeth A. Howell; Deborah Korenstein

Objective:To examine the relationship between overuse of healthcare services and geographic variations in medical care. Design:Systematic Review. Data Sources:Articles published in Medline between 1978, the year of publication of the first framework to measure quality, and January 1, 2009. Study Selection:Four investigators screened 114,830 titles and 2 investigators screened all selected abstracts and articles for possible inclusion and extracted all data. Data Extraction:We extracted data on rates of overuse in different geographic areas. We also extracted data on underuse, if available, for the same population in which overuse was measured. Results:Five papers examined the relationship between geographic variations and overuse of healthcare services. One study in 2008 compared the appropriateness of coronary angiography (CA) for acute myocardial infarction in high-cost areas versus low cost areas in the Medicare population and found largely similar rates of inappropriateness (12.2% vs. 16.2%). A study in 2000 using national data concluded that overuse of CA explained little of the geographic variations in the use of this procedure in the Medicare program. An older study of Medicare patients found similar rates of inappropriate use of CA (15% to 17% vs. 18%), endoscopy (15% vs. 18% 19%), and carotid endarterectomy (29% vs. 30%) in low-use and high-use regions. A small area reanalysis of data from this study of 3 procedures found no evidence of a relationship between inappropriate use of procedures and volume in 23 adjacent counties of California. Another 2008 study found that inappropriate chemotherapy for stage I cancer was less common in low-cost areas compared with high-cost areas (3.1% vs. 6.3%). Conclusions:The limited available evidence does not lend support to the hypothesis that inappropriate use of procedures is a major source of geographic variations in intensity and/or costs of care. More research is needed to improve our understanding of the relationship between geographic variations and the quality of care.


BMJ | 2017

Financial ties of principal investigators and randomized controlled trial outcomes: cross sectional study

Rosa Ahn; Alexandra Woodbridge; Ann Abraham; Susan Saba; Deborah Korenstein; Erin Madden; W. John Boscardin; Salomeh Keyhani

Objective To examine the association between the presence of individual principal investigators’ financial ties to the manufacturer of the study drug and the trial’s outcomes after accounting for source of research funding. Design Cross sectional study of randomized controlled trials (RCTs). Setting Studies published in “core clinical” journals, as identified by Medline, between 1 January 2013 and 31 December 2013. Participants Random sample of RCTs focused on drug efficacy. Main outcome measure Association between financial ties of principal investigators and study outcome. Results A total of 190 papers describing 195 studies met inclusion criteria. Financial ties between principal investigators and the pharmaceutical industry were present in 132 (67.7%) studies. Of 397 principal investigators, 231 (58%) had financial ties and 166 (42%) did not. Of all principal investigators, 156 (39%) reported advisor/consultancy payments, 81 (20%) reported speakers’ fees, 81 (20%) reported unspecified financial ties, 52 (13%) reported honorariums, 52 (13%) reported employee relationships, 52 (13%) reported travel fees, 41 (10%) reported stock ownership, and 20 (5%) reported having a patent related to the study drug. The prevalence of financial ties of principal investigators was 76% (103/136) among positive studies and 49% (29/59) among negative studies. In unadjusted analyses, the presence of a financial tie was associated with a positive study outcome (odds ratio 3.23, 95% confidence interval 1.7 to 6.1). In the primary multivariate analysis, a financial tie was significantly associated with positive RCT outcome after adjustment for the study funding source (odds ratio 3.57 (1.7 to 7.7). The secondary analysis controlled for additional RCT characteristics such as study phase, sample size, country of first authors, specialty, trial registration, study design, type of analysis, comparator, and outcome measure. These characteristics did not appreciably affect the relation between financial ties and study outcomes (odds ratio 3.37, 1.4 to 7.9). Conclusions Financial ties of principal investigators were independently associated with positive clinical trial results. These findings may be suggestive of bias in the evidence base.


Teaching and Learning in Medicine | 2010

Prevalence of Resident Burnout at the Start of Training

Jonathan Ripp; Robert Fallar; Mark W. Babyatsky; Rand A. David; Lawrence M. Reich; Deborah Korenstein

Background: Job burnout is characterized by emotional exhaustion, depersonalization, and feelings of decreased personal accomplishment, and it may be linked to depression and suboptimal patient care. Burnout among American internal medicine residents ranges between 55% and 76%. Purpose: We aim to further characterize burnout prevalence at the start of residency. Methods: Between 2006 and 2007, all incoming internal medicine interns at Mount Sinai Hospital and Elmhurst Hospital Center were asked to complete a survey at orientation. The survey included an instrument to measure burnout, a sleep deprivation screen, a personality inventory and demographic information. Comparison tests were conducted to identify statistically significant differences. Results: The response rate was 94% (145/154). Overall burnout prevalence was 34% (50/145). Interns self-identifying as anxious (51% vs. 28%, p= .01) or disorganized (60% vs. 31%, p= .03) were more likely to have burnout. Conclusions: Our study found higher levels of burnout among beginning medical interns than reported in the literature. Burnout correlated with some self-reported personality features.


Academic Medicine | 2015

The Impact of Duty Hours Restrictions on Job Burnout in Internal Medicine Residents: A Three-institution Comparison Study

Jonathan Ripp; Lisa M. Bellini; Robert Fallar; Hasan Bazari; Joel Katz; Deborah Korenstein

Purpose Internal medicine (IM) residents commonly develop job burnout, which may lead to poor academic performance, depression, and medical errors. The extent to which duty hours restrictions (DHRs) can mitigate job burnout remains uncertain. The July 2011 DHRs created an opportunity to measure the impact of decreased work hours on developing burnout in IM residents. Method A survey was administered twice to first-year IM residents at three academic medical centers between June 2011 and July 2012. To estimate the impact of the 2011 DHRs, data from this cohort, including demographics, sleepiness, hospital-based patient service characteristics, and burnout measures, were compared with data from 2008–2009 from first-year IM residents at the same institutions. Results Of eligible residents, 128/188 (68%) from the 2011–2012 cohort and 111/180 (62%) from the 2008–2009 cohort completed both surveys. Year-end burnout prevalence (92/123 [75%] versus 91/108 [84%], P = .08) and incidence (59/87 [68%] versus 55/68 [81%], P = .07) did not differ significantly between cohorts. There was no difference in year-end prevalence of excessive Epworth sleepiness (72/122 [59%] versus 71/108 [66%], P = .29) between cohorts; however, a greater percentage of residents who developed burnout in the 2011–2012 cohort reported caring for > 8 patients on their service (2011–2012 versus 2008–2009) (29/59 [49%] versus 5/34 [15%], P < .01). Conclusions Job burnout and self-reported sleepiness in IM resident physicians were unchanged after the 2011 DHRs at three academic institutions. Further investigation into the determinants of burnout can inform effective interventions.

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Thomas McGinn

Icahn School of Medicine at Mount Sinai

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Annie Yang

Memorial Sloan Kettering Cancer Center

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Shrujal S. Baxi

Memorial Sloan Kettering Cancer Center

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Ann Abraham

San Francisco VA Medical Center

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Ethan A. Halm

University of Texas Southwestern Medical Center

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Jonathan Ripp

Icahn School of Medicine at Mount Sinai

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Robert Fallar

Icahn School of Medicine at Mount Sinai

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