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Laurence C. Baker
Working Papers

Compliance with Price Transparency by California Hospitals

Bianca Mulaney, Shreya A. Shah, Christine Kim, Shreya A. Shah, Christine Kim, Laurence C. Baker
2021 July 10, 2021

An examination of how California hospitals are adhering to the federal policy on price transparency.

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Journal Articles

Anesthesia Care Team Composition and Surgical Outcomes

Eric Sun, Thomas R. Miller, Jasmin Moshfegh, Laurence C. Baker
The Journal of the American Society of Anesthesiologists , 2018 August 9, 2018

The adjusted mortality for care teams with anesthesiologist assistants was 1.6% (95% CI, 1.4 to 1.8) versus 1.7% for care teams with nurse anesthetists (95% CI, 1.7 to 1.7; difference −0.08; 95% CI, −0.3 to 0.1; P = 0.47). Compared to care teams with nurse anesthetists, care teams with anesthesiologist assistants were associated with non–statistically significant decreases in length of stay (−0.009 days; 95% CI, −0.1 to 0.1; P = 0.89) and medical spending (−$56; 95% CI, −334 to 223; P = 0.70).

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Journal Articles

ACA Marketplace Premiums and Competition Among Hospitals and Physician Practices

Maria Polyakova, M. Kate Bundorf, Daniel P. Kessler, Laurence C. Baker
The American Journal of Managed Care , 2018 July 1, 2018

In this study published in the American Journal of Managed Care, the authors found that premiums for ACA Marketplace plans were higher in rating areas in which physician, hospital, and insurance markets were less competitive.

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Journal Articles

Less Physician Practice Competition Is Associated With Higher Prices Paid For Common Procedures

Daniel R. Austin, Laurence C. Baker
Health Affairs, 2015 October 13, 2015
Concentration among physician groups has been steadily increasing, which may affect prices for physician services. The authors assessed the relationship in 2010 between physician competition and prices paid by private preferred provider organizations for fifteen common, high-cost procedures to understand whether higher concentration of physician practices and accompanying increased market power were associated with higher prices for services.
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Journal Articles

Impact of Including Readmissions for Qualifying Events in the Patient Safety Indicators

Sheryl M. Davies, Olga Saynina, Laurence C. Baker, Kathryn M. McDonald
American Journal of Medical Quality, 2014 January 1, 2014

Abstract:  The Agency for Healthcare Research and Quality Patient Safety Indicators (PSIs) do not capture complications arising after discharge. This study sought to quantify the bias related to omission of readmissions for PSI-qualifying conditions. Using 2000-2009 California Office of Statewide Health Planning and Development Patient Discharge Data, the study team examined the change in PSI rates when including readmissions in the numerator, hospitals performing in the extreme deciles, and longitudinal performance.

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Journal Articles

Limitations of using same-hospital readmission metrics

Sheryl M. Davies, Olga Saynina, Kathryn M. McDonald, Laurence C. Baker
International Journal for Quality in Health Care, 2013 December 1, 2013

OBJECTIVE
To quantify the limitations associated with restricting readmission metrics to same-hospital only readmission.
DESIGN

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Journal Articles

Implications of Metric Choice for Common Applications of Readmission Metrics

Sheryl M. Davies, Olga Saynina, Kathryn M. McDonald, Ellen Schultz, Laurence C. Baker
Health Services Research, 2013 June 6, 2013
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Journal Articles

Implications of Metric Choice for Common Applications of Readmission Metrics

Sheryl M. Davies, Olga Saynina, Kathryn M. McDonald, Ellen Schultz, Laurence C. Baker
Health Services Research, 2013 June 6, 2013

Objective. To quantify the differential impact on hospital performance of three readmission metrics: all-cause readmission (ACR), 3M Potential Preventable Readmission (PPR), and Centers for Medicare and Medicaid 30-day readmission (CMS).

Data Sources. 2000–2009 California Office of Statewide Health Planning and Development Patient Discharge Data Nonpublic file.

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Journal Articles

The relationship between low back magnetic resonance imaging, surgery, and spending: Impact of physician self-referral status

Shreibati, J. B., Laurence Baker
Health Services Research, 2011 December 31, 2011

Keywords:

  • Low back pain;
  • low back MRI;
  • low back surgery;
  • instrumental variables;
  • physician self-referral

Objective. To examine the relationship between use of magnetic resonance imaging (MRI) and receipt of surgery for patients with low back pain.

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Journal Articles

Weighing costs, benefits of imaging: Author response

Laurence Baker
Health Affairs, 2011 December 31, 2011
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Journal Articles

Analyzing self-referral: The author replies

Laurence Baker
Analyzing self-referral: The author replies, 2011 December 31, 2011
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Journal Articles

Association of coronary CT angiography or stress testing with subsequent utilization and spending among medicare beneficiaries

Shreibati, J.B., Laurence Baker, Mark Hlatky
JAMA - Journal of the American Medical Association, 2011 December 31, 2011
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Journal Articles

Assessing cost-effectiveness and value as imaging grows: The case of carotid artery CT

Laurence Baker, Afendulis, C. C., Atlas, S. W.
Health Affairs (Project Hope), 2010 December 31, 2010
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Journal Articles

Acquisition of MRI equipment by doctors drives up imaging use and spending

Laurence Baker
Health Affairs (Project Hope), 2010 December 31, 2010

Abstract

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Journal Articles

HMO coverage reduces variations in the use of health care among patients under age sixty-five

Laurence Baker, M. Kate Bundorf, Daniel Kessler
Health Affairs (Project Hope), 2010 December 31, 2010
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Journal Articles

The Contribution of Health Plans and Provider Organizations to Variations in Measured Plan Quality

Laurence Baker, David Hopkins
International Journal for Quality in Health Care, 2010 March 18, 2010

OBJECTIVE: Some argue that health plans have minimal impacts on quality of care and that quality data collection should focus only on physician organizations. We investigate the relative impact of physician organizations and health plans on quality measures.

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Journal Articles

Patient safety climate in 92 us hospitals differences by work area and discipline

Singer, S. J., Gaba, D. M., Falwell, A., Lin, S., Hayes, J., Laurence Baker
Medical Care, 2009 December 31, 2009

Abstract

BACKGROUND:

Concern about patient safety has promoted efforts to improve safety climate. A better understanding of how patient safety climate differs among distinct work areas and disciplines in hospitals would facilitate the design and implementation of interventions.

OBJECTIVES:

To understand workers' perceptions of safety climate and ways in which climate varies among hospitals and by work area and discipline.

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Journal Articles

Relationship of safety climate and safety performance in hospitals

Singer, S., Lin, S., Falwell, A, Gaba, D., Laurence Baker
Health Services Research, 2009 December 31, 2009

Abstract

OBJECTIVE:

To examine the relationship between measures of hospital safety climate and hospital performance on selected Patient Safety Indicators (PSIs).

DATA SOURCES:

Primary data from a 2004 survey of hospital personnel. Secondary data from the 2005 Medicare Provider Analysis and Review File and 2004 American Hospital Association's Annual Survey of Hospitals.

STUDY DESIGN:

A cross-sectional study of 91 hospitals.

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Journal Articles

Editorial: Health Services Research in 2020: An Assessment of the Field's Workforce Needs.

Colby DC, Laurence Baker
Health Services Research, 2009 December 1, 2009

As academic fields and professions go, health services research is relatively young. Whether one dates the beginning of this field to the first National Institutes of Health study section on health services research in 1960, the passage of Medicare and Medicaid in 1965 and the accompanying drive to develop the conceptual and analytic tools to manage them, or the founding of this journal by the Health Research and Educational Trust with a grant from the U.S. Public Health Service in 1966, its history is much shorter than that of many other disciplines.

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Journal Articles

Identifying Organizational Cultures that Promote Patient Safety

Sara J. Singer, Alyson Falwell Alyson Falwell, David Gaba David Gaba, Meterko M, Rosen A, Hartmann CW, Laurence Baker
Health Care Management and Policy, 2009 October 1, 2009

BACKGROUND: Safety climate refers to shared perceptions of what an organization is like with regard to safety, whereas safety culture refers to employees' fundamental ideology and orientation and explains why safety is pursued in the manner exhibited within a particular organization. Although research has sought to identify opportunities for improving safety outcomes by studying patterns of variation in safety climate, few empirical studies have examined the impact of organizational characteristics such as culture on hospital safety climate.

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Journal Articles

Magnetic Resonance Imaging And Low Back Pain Care For Medicare Patients

Baras JD, Laurence Baker
Health Affairs, 2009 October 1, 2009

Magnetic resonance imaging (MRI) is a technology frequently used to evaluate low back pain, despite evidence that challenges the usefulness of routine MRI and the surgical interventions it may trigger. We analyze the relationship between MRI supply and care for fee-for-service Medicare patients with low back pain. We find that increases in MRI supply are related to higher use of both low back MRI and surgery. This is worrisome, and careful attention should be paid to assessing the outcomes for patients.

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Journal Articles

Health Care Cost Growth Among the Privately Insured

M. Kate Bundorf, Royalty A, Laurence Baker
Health Affairs, 2009 September 1, 2009

Controlling health care cost growth remains a high priority for policymakers and private decisionmakers, yet little is known about sources of this growth. We examined spending growth among the privately insured between 2001 and 2006, separating the contributions of price changes from those driven by consumption. Most spending growth was driven by outpatient services and pharmaceuticals, with growth in quantities explaining the entire growth in outpatient spending and about three-quarters of growth in spending on prescription drugs.

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Journal Articles

Are American Physicians more Satisfied? - Results from an International Study of Physicians in University Hospitals.

Janus K, Amelung VE, Laurence C. Baker, Gaitanides M, Rundall TG, Schwartz FW
Gesundheitswesen, 2009 March 13, 2009

Understanding the factors that affect physicians' job satisfaction is important not only to physicians themselves, but also to patients, health system managers, and policy makers. Physicians represent the crucial resource in health-care delivery. In order to enhance efficiency and quality in health care, it is indispensable to analyse and consider the motivators of physicians. Physician job satisfaction has significant effects on productivity, the quality of care, and the supply of physicians.

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Journal Articles

Patient Safety Climate in 92 US Hospitals: Differences by Work Area and Discipline

Sara J. Singer, David M. Gaba, Alyson Falwell, Laurence Baker
Medical Care, 2009 January 1, 2009

BACKGROUND: Concern about patient safety has promoted efforts to improve safety climate. A better understanding of how patient safety climate differs among distinct work areas and disciplines in hospitals would facilitate the design and implementation of interventions. OBJECTIVES: To understand workers' perceptions of safety climate and ways in which climate varies among hospitals and by work area and discipline. RESEARCH DESIGN: We administered the Patient Safety Climate in Healthcare Organizations survey in 2004-2005 to personnel in a

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Journal Articles

Trends in charges and payments for nonhospitalized emergency department pediatric visits, 1996-2003

Hsia, R. Y., MacIsaac, D., Palm, E., Laurence Baker
Academic Emergency Medicine, 2008 December 31, 2008

Abstract

OBJECTIVES:

To compare charges and payments for outpatient pediatric emergency visits across payer groups to provide information on reimbursement trends.

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