Evidence Based Practice / Medicine
What is EBP/M?
The most commonly used definition for EBM is that "Evidence-based medicine is the conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients. The practice of evidence-based medicine means integrating individual clinical expertise with the best available external clinical evidence from systematic research." provided by David Sackett et al in the 1996 article, " Evidence-Based Medicine: What it is and what it isn't" for BMJ. (Full text here)
However, there are some specific points to consider when defining Evidence-Based Practice.
"Evidence-based practice (EBP) refers to the systematic process where-by decisions are made and actions or activities are undertaken using the best evidence available. The aim of evidence-based practice is to remove as far as possible, subjective opinion, unfounded beliefs, or bias from decisions and actions in organisations. Evidence for decisions comes from various sources:
- Peer-reviewed research
- Work-based trial and error testing
- Practitioner experience & expertise
- Feedback from practice, practitioners, customers, clients, patients or systems
Evidence based practice also involves the ability to be able to evaluate and judge the validity, reliability and veracity of the evidence and it’s applicability to the situation in question. This means that there are a series of methods and approaches for developing practice, and that evidence-based practitioners undergo continual development and training as practice develops." (Oxford Review.com)
What Is PICO(T)?
Let us assume you have a topic you wish to research but have yet to begin your searches. Before you begin, you must have a clinical question formulated - this will direct how you phrase your research queries. This approach is known as the PICO model.
P - Patient and/or Population
- Who is your patient? Their age, sex, health history and problem at hand are all elements under this first category.
I - Intervention
- What is your treatment plan? Tests, potential prescriptions & procedures go here.
C - Comparison
- Which alternatives are available? What has come before in the literature?
O - Outcomes
- What is your goal? Do you need to give a new, correct diagnosis? Stabilize a condition?
T - Time
- How long did the aspects of the study take? What timeframes must be considered?
PICOT Search
EBM Explained
EBP/M E-Books
How I Read A Paper!
The 5 A's
From Ascension WI:
The 5 "A's" will help you to remember the EBP process:
- ASK: Information needs from practice are converted into focused, structured questions.
- ACCESS / ACQUIRE: The focused questions are used as a basis for literature searching in order to identify relevant external evidence from research.
- APPRAISE: The research evidence is critically appraised for validity.
- APPLY: The best available evidence is used alongside clinical expertise and the patient's perspective to plan care.
- ASSESS / AUDIT: Performance is evaluated through a process of self reflection, audit, or peer assessment.
Please note, there are several models for EBP with various named and numbered steps. This guide will detail the first three steps ASK, ACCESS/ACQUIRE, APPRAISE. Some models include a 6th step for DISSEMINATE.
* This box and graphic was created by Diane Giebink-Skoglind of ThedaCare. Used by permission. The graphic is adapted from Melnyk, BM & Fineout-Overholt, E. (2011). Evidence-based practice in nursing & healthcare: A guide to best pracatice. (2nd ed.) Philadephia: Wolters-Kluwer/Lippincott Williams & Wilkins.
Helpful Links & Other Resources
Our EBM Databases
EBM Reviews - Cochrane Central Register of Controlled Trials
EBM Reviews - Cochrane Clinical Answers
EBM Reviews - Cochrane Database of Systematic Reviews
EBM Reviews - Cochrane Methodology Register
EBM Reviews - Database of Abstracts of Reviews of Effects
EBM Reviews - Health Technology Assessment
EBM Reviews - NHS Economic Evaluation Database
Link to all EBM Reviews content sets at once
EBP / EBM Terminology
Using PubMed for Evidence-Based Practice
EBP for the Busy Nurse Practitioner - 4-Part Series
This series was published in The Journal of the American Academy of Nurse Practitioners.
Abstract
Background
Evidence-based practice and decision-making have been consistently linked to improved quality of care, patient safety, and many positive clinical outcomes in isolated reports throughout the literature. However, a comprehensive summary and review of the extent and type of evidence-based practices (EBPs) and their associated outcomes across clinical settings are lacking.
Aims
The purpose of this scoping review was to provide a thorough summary of published literature on the implementation of EBPs on patient outcomes in healthcare settings.
Methods
A comprehensive librarian-assisted search was done with three databases, and two reviewers independently performed title/abstract and full-text reviews within a systematic review software system. Extraction was performed by the eight review team members.
Results
Of 8537 articles included in the review, 636 (7.5%) met the inclusion criteria. Most articles (63.3%) were published in the United States, and 90% took place in the acute care setting. There was substantial heterogeneity in project definitions, designs, and outcomes. Various EBPs were implemented, with just over a third including some aspect of infection prevention, and most (91.2%) linked to reimbursement. Only 19% measured return on investment (ROI); 94% showed a positive ROI, and none showed a negative ROI. The two most reported outcomes were length of stay (15%), followed by mortality (12%).
Linking Evidence to Action
Findings indicate that EBPs improve patient outcomes and ROI for healthcare systems. Coordinated and consistent use of established nomenclature and methods to evaluate EBP and patient outcomes are needed to effectively increase the growth and impact of EBP across care settings. Leaders, clinicians, publishers, and educators all have a professional responsibility related to improving the current state of EBP. Several key actions are needed to mitigate confusion around EBP and to help clinicians understand the differences between quality improvement, implementation science, EBP, and research.