Evidence-based medicine.
Level 5 - mechanism / opinion, no new human data
Expert opinion and conceptual framework without original empirical data
PubMed 9190027 · doi:10.1016/s0146-0005(97)80013-4
What was done
This paper presents a conceptual overview and operational definition of evidence-based medicine (EBM). It outlines the philosophical origins, core components (integrating individual clinical expertise with external research evidence), and a five-step practical process for self-directed learning and clinical decision-making.
What was found
The abstract reports no empirical findings or numerical data. It defines EBM as integrating clinical proficiency and judgment with high-quality, patient-centered external research on diagnostic tests, prognostic markers, and therapeutic regimens. It establishes that neither clinical expertise nor external evidence alone is sufficient: relying solely on evidence risks applying inappropriate data to individual patients, while relying solely on clinical expertise risks using outdated care.
Why it matters
This seminal definition established the modern framework of evidence-based medicine, clarifying that empirical research does not replace clinical judgment but must be synthesized with clinician expertise and patient preferences.
Limits
The paper is a conceptual framework and expert opinion piece rather than an empirical study; it contains no primary data, sample size, systematic search methodology, or quantitative evaluation of clinical outcomes.
Cited by
- supports Evidence-based medicine is formally defined as a three-part model integrating scientific evidence, physician clinical experience, and patient preferences/lived experience.