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Dena M. Bravata
Journal Articles

Inhalational, Gastrointestinal, and Cutaneous Anthrax in Children: A Systematic Review of Cases: 1900 to 2005

Dena M. Bravata, Jon-Erik Holty, E Wang, Robyn Lewis, Paul H. Wise, Kathryn M. McDonald, Douglas K. Owens
Archives of Pediatric and Adolescent Medicine , 2007

Objective: To systematically review all published case reports of children with anthrax to evaluate the predictors of disease progression and mortality.

Data Sources: Fourteen selected journal indexes (1900-1966), MEDLINE (1966-2005), and the bibliographies of all retrieved articles.

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Working Papers

Closing the Quality Gap: A Critical Analysis of Quality Improvement Strategies (Vol. 7: Care Coordination)

Kathryn M. McDonald, Vandana Sundaram, Dena M. Bravata, Robyn Lewis, Nancy D. Lin, Kraft SA, Moira McKinnon, Paguntalan H, Douglas Owens
AHRQ Technical Reviews and Sumaries , 2007

CONTEXT: Quality problems and spiraling costs have resulted in widespread interest in solutions that improve the effectiveness and efficiency of the health care system. Care coordination has been identified by the Institute of Medicine as one of the key strategies for potentially accomplishing these improvements.

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Working Papers

Closing the Quality Gap: A Critical Analysis of Quality Improvement Strategies, Vol. 7: Care Coordination

Kathryn M. McDonald, Vandana Sundaram, Dena M. Bravata, Robyn Lewis, Nancy D. Lin, SA Kraft, Moira McKinnon, H Paguntalan, Douglas K. Owens
Stanford-UCSF Evidence-based Practice Center, for the Agency for Healthcare Research and Quality , 2007

Context: Quality problems and spiraling costs have resulted in widespread interest in solutions that improve the effectiveness and efficiency of the health care system. Care coordination has been identified by the Institute of Medicine as one of the key strategies for potentially accomplishing these improvements.

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Journal Articles

Systematic Review: The Safety and Efficacy of Growth Hormone in the Healthy Elderly

Hau Liu, Dena M. Bravata, Ingram Olkin, Smita Nayak, Brian Roberts, Alan M. Garber, Andrew Hoffman
Annals of Internal Medicine , 2007

Background

Human growth hormone (GH) is widely used as an antiaging therapy, although its use for this purpose has not been approved by the U.S. Food and Drug Administration and its distribution as an antiaging agent is illegal in the United States.

Purpose

To evaluate the safety and efficacy of GH therapy in the healthy elderly.

Data Sources

The authors searched MEDLINE and EMBASE databases for English-language studies published through 21 November 2005 by using such terms as growth hormone and aging.

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Working Papers

Closing the Quality Gap: A Critical Analysis of Quality Improvement Strategies, Vol. 5: Asthma

Dena M. Bravata, Vandana Sundaram, Robyn Lewis, Allison Gienger, Michael K. Gould, Kathryn M. McDonald, Paul H. Wise, Jon-Erik Holty, Katherine E. Herz, H Paguntalan, C Sharp, J Kim, E Wang, L Chamberlain, L Shieh, Douglas K. Owens
Stanford-UCSF Evidence-based Practice Center, for the Agency for Healthcare Research and Quality , 2007

Objectives:

Despite the availability of evidence-based guidelines for the management of pediatric and adult asthma, there remains a significant gap between accepted best practices for asthma care and actual care delivered to asthma patients. The purpose of this systematic review was to evaluate the evidence that quality improvement (QI) strategies can improve the processes and outcomes of outpatient care for children and adults with asthma.

Data Sources:

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Journal Articles

Reducing Mortality from Anthrax Bioterrorism: Strategies for Stockpiling and Dispensing Medical and Pharmaceutical Supplies

Dena M. Bravata, GS Zaric, Jon-Erik Holty, Margaret L. Brandeau, Emilee Wilhelm-Leen, Kathryn M. McDonald, Douglas Owens
Biosecurity and Bioterrorism , 2006

A critical question in planning a response to bioterrorism is how antibiotics and medical supplies should be stockpiled and dispensed. The objective of this work was to evaluate the costs and benefits of alternative strategies for maintaining and dispensing local and regional inventories of antibiotics and medical supplies for responses to anthrax bioterrorism. We modeled the regional and local supply chain for antibiotics and medical supplies as well as local dispensing capacity.

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Working Papers

Pediatric Anthrax: Implications for Bioterrorism Preparedness

Dena M. Bravata, E Wang, Jon-Erik Holty, Robyn Lewis, Paul H. Wise, Smita Nayak, Hau Liu, Kathryn McDonald, Douglas Owens
Prepared for the Agency for Healthcare Research and Quality by the Stanford-UCSF Evidence-based Practice Center, under contract #290-02-0017 , 2006

Objectives:

To systematically review the literature about children with anthrax to describe their clinical course, treatment responses, and the predictors of disease progression and mortality.

Data Sources:

MEDLINE® (1966-2005), 14 selected journal indexes (1900-1966) and bibliographies of all retrieved articles.

Review Methods:

We sought case reports of pediatric anthrax published between 1900 and 2005 meeting predefined criteria. We abstracted three types of data from the English-language reports:

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Journal Articles

Anthrax: A Systematic Review of Atypical Presentations

Jon-Erik Holty, RY Kim, Dena Bravata
Annals of Emergency Medicine , 2006

During the 2001 US anthrax attacks, mortality from inhalational anthrax was significantly lower than had been reported historically, which was attributed in part to early identification and timely treatment. During future attacks, clinicians will rely on published descriptions of the clinical features of inhalational anthrax to rapidly diagnose patients and institute appropriate treatment.

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Journal Articles

Accuracy of Quantitative Ultrasound for Identifying Patients with Osteoporosis

Smita Nayak, Ingram Olkin, Hau Liu, M Grabe, Michael K. Gould, IE Allen, Douglas Owens, Dena Bravata
Annals of Internal Medicine , 2006

Background:

There is increased interest in quantitative ultrasound for osteoporosis screening because it predicts fracture risk, is portable, and is relatively inexpensive. However, there is no consensus regarding its accuracy for identifying patients with osteoporosis.

Purpose:

To determine the sensitivity and specificity of calcaneal quantitative ultrasound for identifying patients who meet the World Health Organization's diagnostic criteria for osteoporosis. Dual-energy x-ray absorptiometry (DXA) was used as the reference standard.

Data Sources:

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Journal Articles

Systematic Review: A Century of Inhalational Anthrax Cases from 1900 to 2005

Jon-Erik Holty, Dena M. Bravata, Hau Liu, Richard Olshen, Kathryn McDonald, Douglas Owens
Annals of Internal Medicine , 2006

Background:

Mortality from inhalational anthrax during the 2001 U.S. attack was substantially lower than that reported historically.

Purpose:

To systematically review all published inhalational anthrax case reports to evaluate the predictors of disease progression and mortality.

Data Sources:

MEDLINE (1966-2005), 14 selected journal indexes (1900-1966), and bibliographies of all retrieved articles.

Study Selection:

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Journal Articles

Elevated late-night salivary cortisol levels in elderly male type 2 diabetic veterans

Hau Liu, Dena M. Bravata, J Cabaccan, H Raff, E Ryzen
Clinical Endocrinology , 2005

OBJECTIVE: Late-night salivary cortisol (LNSC) is reportedly highly accurate for the diagnosis of Cushing's syndrome (CS). However, diagnostic thresholds for abnormal results are based on healthy, young populations and limited data are available on its use in elderly populations with chronic medical conditions. The purpose of this study was to evaluate LNSC levels in elderly male veterans with and without diabetes.

DESIGN: Prospective evaluation of LNSC levels in male veterans.

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Journal Articles

Challenges in Systematic Reviews: Synthesis of Topics Related to the Delivery, Organization, and Financing of Health Care

Dena M. Bravata, Kathryn M. McDonald, KG Shojania, Vandana Sundaram, Douglas K. Owens
Annals of Internal Medicine, supplement on "Challenges of Summarizing Better Information for Better Health" , 2005

Some important health policy topics, such as those related to the delivery, organization, and financing of health care, present substantial challenges to established methods for evidence synthesis. For example, such reviews may ask: What is the effect of for-profit versus not-for-profit delivery of care on patient outcomes? Or, which strategies are the most effective for promoting preventive care? This paper desc ribes innovative methods for synthesizing evidence related to the delivery, organization, and financing of health care.

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Journal Articles

Cost-Effectiveness of Defending against Bioterrorism: A Comparison of Vaccination and Antibiotic Prophylaxis against Anthrax

RA Fowler, Gillian D. Sanders, Dena M. Bravata, B Nouri, JM Gastwirth, D Peterson, AG Broker, Alan M. Garber, Douglas K. Owens
Annals of Internal Medicine , 2005

Background: Weaponized Bacillus anthracis is one of the few biological agents that can cause death and disease in sufficient numbers to devastate an urban setting.

Objective: To evaluate the cost-effectiveness of strategies for prophylaxis and treatment of an aerosolized B. anthracis bioterror attack.

Design: Decision analytic model.

Data Sources: We derived probabilities of anthrax exposure, vaccine and treatment characteristics, and their costs and associated clinical outcomes from the medical literature and bioterrorism-preparedness experts.

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Journal Articles

Invariance and Inconsistency in Utility Ratings

Dena M. Bravata, LM Nelson, Alan M. Garber, Mary K. Goldstein
Medical Decision Making , 2005

Purpose:

To assess utilities of composite health states for dependence in activities of daily living (ADLs) for invariance (i.e., when subjects provide a utility of 1 for all health states) and order inconsistency (i.e., when subjects order their utilities such that their utility for a combination of ADL dependencies is greater than their utility for any subset of the combination).

Methods:

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Journal Articles

Systematic Review: Surveillance Systems for Early Detection of Bioterrorism-Related Diseases

Dena M. Bravata, Kathryn M. McDonald, Wendy Smith, Chara Rydzak, Herbert Szeto, David Buckeridge, Corinna Haberland, Douglas K. Owens
Annals of Internal Medicine , 2004

BACKGROUND: Given the threat of bioterrorism and the increasing availability of electronic data for surveillance, surveillance systems for the early detection of illnesses and syndromes potentially related to bioterrorism have proliferated.

PURPOSE: To critically evaluate the potential utility of existing surveillance systems for illnesses and syndromes related to bioterrorism.

DATA SOURCES: Databases of peer-reviewed articles (for example, MEDLINE for articles published from January 1985 to April 2002) and Web sites of relevant government and nongovernment agencies.

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Working Papers

Regionalization of bioterrorism preparedness and response

Dena M. Bravata, Kathryn M. McDonald, Douglas K. Owens, Emilee Wilhelm-Leen, ML Brandeau, GS Zaric, Jon-Erik Holty, H Liu, Vandana Sundaram
Stanford-UCSF Evidence-based Practice Center, Agency for Healthcare Research and Quality , 2004

The anthrax attacks of 2001, the outbreak of severe acute respiratory syndrome (SARS), and weapons of mass destruction tabletop exercises have made it clear that no single community can prepare fully, nor respond completely, to a large-scale bioterrorism event.

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Journal Articles

Conceptual Model for Evaluating Information Technologies and Decision Support Systems for Bioterrorism Preparedness and Response, A

Dena M. Bravata, Kathryn M. McDonald, H Szeto, Wendy M Smith, C Rydzak, Douglas K. Owens
Medical Decision Making , 2004

OBJECTIVES: The authors sought to develop a conceptual framework for evaluating whether existing information technologies and decision support systems (IT/DSSs) would assist the key decisions faced by clinicians and public health officials preparing for and responding to bioterrorism.

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Journal Articles

Evaluating Detection and Diagnostic Decision Support Systems for Bioterrorism Response

Dena M. Bravata, Vandana Sundaram, Kathryn M. McDonald, Wendy M Smith, H Szeto, MD Schleinitz, Douglas K. Owens
Emerging Infectious Diseases , 2004

We evaluated the usefulness of detection systems and diagnostic decision support systems for bioterrorism response. We performed a systematic review by searching relevant databases (e.g., MEDLINE) and Web sites for reports of detection systems and diagnostic decision support systems that could be used during bioterrorism responses. We reviewed over 24,000 citations and identified 55 detection systems and 23 diagnostic decision support systems.

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Journal Articles

Development and Implementation of a Curriculum to Improve Clinicians Self-directed Learning Skills: A Pilot Project, The

Dena M. Bravata, Stephen Huot
BMC Medical Education , 2003

BACKGROUND: Clinicians need self-directed learning skills to maintain competency. The objective of this study was to develop and implement a curriculum to teach physicians self-directed learning skills during inpatient ward rotations. METHODS: Residents and attendings from an internal medicine residency were assigned to intervention or control groups; intervention physicians completed self-directed learning curricular exercises. RESULTS:

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Journal Articles

Efficacy and Safety of Low-Carbohydrate Diets

Dena M. Bravata, L Sanders, J Huang, HM Krumholz, Ingram Olkin, CD Gardner, DM Bravata
Journal of the American Medical Association , 2003

Context Low-carbohydrate diets have been popularized without detailed evidence of their efficacy or safety. The literature has no clear consensus as to what amount of carbohydrates per day constitutes a low-carbohydrate diet.

Objective To evaluate changes in weight, serum lipids, fasting serum glucose, and fasting serum insulin levels, and blood pressure among adults using low-carbohydrate diets in the outpatient setting.

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Journal Articles

Surveillance Systems for Bioterrorism: A Systematic Review

Dena M Bravata, Kathryn M McDonald, Wendy Smith, Chara Rydzak, H Szeto, D Buckeridge, Corinna Haberland, Douglas K Owens
Journal of Urban Health: Bulletin of The New York Academy of Medicine , 2002
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Working Papers

Bioterrorism Preparedness and Response: Use of Information Technologies and Decision Support Systems

Dena M. Bravata, Kathryn M. McDonald, Douglas K. Owens, David Buckeridge, Corinna Haberland, Chara Rydzak, Mark Schleinitz, Wendy Smith, H Szeto, Dean Wilkening
UCSF-Stanford Evidence-Based Practice Center, Agency for Healthcare Research and Quality , 2002

The Nation's capacity to respond to bioterrorism depends in part on the ability of clinicians and public health officials to detect, manage, and communicate during a bioterrorism event. Information technologies and decision support systems (IT/DSSs) have the potential to aid clinicians (e.g., physicians, nurses, nurse practitioners, and respiratory therapists) and public health officials to respond effectively to a bioterrorist attack.

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Journal Articles

Comparison of Dermatologists' and Primary Care Physicians' Accuracy in Diagnosing Melanoma: A Systematic Review, A

SC Chen, Dena M Bravata, E Weil, Ingram Olkin
Archives of Dermatology , 2001
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Journal Articles

Employment and Alcohol Use after Liver Transplantation for Alcoholic and Nonalcoholic Liver Disease: A Systematic Review

Dena M Bravata, Ingram Olkin, AE Barnarto, EB Keeffe, Douglas K Owens
Liver Transplantation , 2001
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Journal Articles

Making Medical Decisions under Uncertainty

Dena M Bravata
Seminars in Medical Practice , 2000
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