Mark Helfand
Biographic Data
| ID | 2461117 |
|---|---|
| NAME | Mark Helfand |
| GIVEN NAMES | Mark |
| FAMILY NAME | Helfand |
| SIGNATURE | HELFAND M |
| AFFILIATIONS | Oregon Health & Science University |
| ORCID | 0000-0003-4846-9900 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 12 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1992 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
The Association Between Self-Reported Types of Toxic Exposures and Symptom Severity Among Gulf War Era Veterans
BACKGROUND: Gulf War illness is a chronic multisymptom illness impacting Veterans of the 1990-1991 Persian Gulf War. Toxic exposures are believed to be associated with the condition, but little is known about how multiple types of exposures can impact the disease. The aim of this study is to determine if a positive association exists between the multiplicity of exposure types and symptom severity score. METHODS: A cross-sectional survey design wa…
New (and Not so New) Directions in Evidence Synthesis Methods and Application in a Learning Health Care System
Applying systematic review methods in the context of health systems is challenging. The very definition of a learning health care system as one that enables real-time and continuous improvement seems to underscore the mismatch with systematic review methods, in which a great deal of time is spent finding and sorting through studies, information is thrown into unwieldy tables, and evidence is often described as insufficient for decision-making.1 I…
Engagement in PCORnet Research Networks
Efforts to engage patients and stakeholders are a ubiquitous element of Patient-Centered Outcomes Research Institute (PCORI)’s broader research program. The focus of that research is comparative effectiveness research that is built on what is important to patients. When PCORI began operations in 2011, it made an unwavering commitment to patient engagement while, at the same time, acknowledging that there was no proven recipe for doing so effectiv…
Decision flows into actions
GRADE guidelines
Ten years of longitudinal research on U.S. adolescent sexual behavior
Incorporating Information About Cost-Effectiveness Into Evidence-Based Decision-Making
RATIONALE: There is a pressing need for guidance on how to incorporate economic information into evidence-based decision-making. Such guidance should take account of the quality and relevance of economic evaluations. OBJECTIVE: To summarize lessons learned in integrating information from decision analyses and cost-effectiveness analyses. KEY ISSUES: Several methods used by the Evidence-Based Practice Centers (EPCs) to conduct systematic reviews a…
Practice Variation and the Risk of Low Birth Weight in a Public Prenatal Care Program
OBJECTIVES: Use of antepartum tests of fetal well-being is widespread even though effectiveness in preventing fetal damage or stillbirth has not been established. The study objective was to examine whether aggressive use of these tests might contribute to increased rates of other birth outcomes, including low birth weight (LBW). METHODS: A total of 3,235 low-income women receiving care from 28 clinic sites were studied. All women were eligible fo…
Low birthweight in a public prenatal care program
Effect of the Clinical Laboratory Improvement Amendments of 1988 (CLIA ??88) on the Incidence of Invasive Cervical Cancer
The Clinical Laboratory Improvement Act of 1988 (CLIA '88) mandates strict, new quality-control measures for laboratories that interpret cervical cytology smears. Proposed regulations include proficiency testing of cytotechnologists and remediation for technologists and laboratories that fail to meet proposed proficiency standards. Proponents of the new regulations argue that these measures will reduce deaths from cervical cancer by reducing the …
Effect of the Clinical Laboratory Improvement Amendments of 1988 (CLIA ??88) on the Incidence of Invasive Cervical Cancer
The Clinical Laboratory Improvement Act of 1988 (CLIA '88) mandates strict, new quality-control measures for laboratories that interpret cervical cytology smears. Proposed regulations include proficiency testing of cytotechnologists and remediation for technologists and laboratories that fail to meet proposed proficiency standards. Proponents of the new regulations argue that these measures will reduce deaths from cervical cancer by reducing the …
Low birthweight in a public prenatal care program
Practice Variation and the Risk of Low Birth Weight in a Public Prenatal Care Program
OBJECTIVES: Use of antepartum tests of fetal well-being is widespread even though effectiveness in preventing fetal damage or stillbirth has not been established. The study objective was to examine whether aggressive use of these tests might contribute to increased rates of other birth outcomes, including low birth weight (LBW). METHODS: A total of 3,235 low-income women receiving care from 28 clinic sites were studied. All women were eligible fo…
Incorporating Information About Cost-Effectiveness Into Evidence-Based Decision-Making
RATIONALE: There is a pressing need for guidance on how to incorporate economic information into evidence-based decision-making. Such guidance should take account of the quality and relevance of economic evaluations. OBJECTIVE: To summarize lessons learned in integrating information from decision analyses and cost-effectiveness analyses. KEY ISSUES: Several methods used by the Evidence-Based Practice Centers (EPCs) to conduct systematic reviews a…
Ten years of longitudinal research on U.S. adolescent sexual behavior
GRADE guidelines
Engagement in PCORnet Research Networks
Efforts to engage patients and stakeholders are a ubiquitous element of Patient-Centered Outcomes Research Institute (PCORI)’s broader research program. The focus of that research is comparative effectiveness research that is built on what is important to patients. When PCORI began operations in 2011, it made an unwavering commitment to patient engagement while, at the same time, acknowledging that there was no proven recipe for doing so effectiv…
Decision flows into actions
New (and Not so New) Directions in Evidence Synthesis Methods and Application in a Learning Health Care System
Applying systematic review methods in the context of health systems is challenging. The very definition of a learning health care system as one that enables real-time and continuous improvement seems to underscore the mismatch with systematic review methods, in which a great deal of time is spent finding and sorting through studies, information is thrown into unwieldy tables, and evidence is often described as insufficient for decision-making.1 I…
The Association Between Self-Reported Types of Toxic Exposures and Symptom Severity Among Gulf War Era Veterans
BACKGROUND: Gulf War illness is a chronic multisymptom illness impacting Veterans of the 1990-1991 Persian Gulf War. Toxic exposures are believed to be associated with the condition, but little is known about how multiple types of exposures can impact the disease. The aim of this study is to determine if a positive association exists between the multiplicity of exposure types and symptom severity score. METHODS: A cross-sectional survey design wa…
Medicine (8 works) · Psychology (4 works) · Alternative medicine (3 works) · Computer Science (3 works) · Engineering (3 works) · Health Systems, Economic Evaluations, Quality of Life (3 works) · Internal Medicine (3 works) · MEDLINE (3 works) · Population (3 works) · Anxiety (2 works)