Overview

Evidence Based Practice Diagram

Levels of Evidence

EBP graphic illustration

Hierarchy of Evidence

Level I - Evidence from a systematic review or meta-analysis of all relevant randomized controlled trials (RCTs) or three or more RCTs of good quality that have similar results.

Level II - Evidence obtained from at least one well-designed RCTs

Level III - Evidence obtained from well-designed controlled trials without randomization (i.e. quasi-experimental).

Level IV - Evidence from well-designed case-control or cohort studies

Level V - Evidence from systematic reviews of descriptive and qualitative studies

Level VI - Evidence from single descriptive or qualitative studies

Level VII - Evidence from the opinion of authorities and/or reports of expert committees

Ackley, B. J., Swan, B. A., Ladwig, G., & Tucker, S. (2008). Evidence-based nursing care guidelines: Medical-surgical interventions. (p. 7). St. Louis, MO: Mosby Elsevier.

Evidence Based Practice

Measurement Tools

Types of Resources

Hierarchy of Evidence Resources - Nursing - Research Guides at University of Michigan Library

Haynes RB. Of studies, syntheses, synopses, summaries and systems: the “5S" evolution of services for evidence-based health care decisions. ACP J Club. 2006 Nov-Dec;145(3):A8-9. 

PICO (T)

P = Patient or Problem - Patients age 65 and older with high blood pressure

I = Intervention - Patient education

C = Comparison - No patient education

O = Outcome - Patient participation in exercise

 

NIH. National Library of Medicine.

https://www.nlm.nih.gov/oet/ed/pubmed/pubmed_in_ebp/02-100.html

 

PPAARE


Problem, Patient, Action, Alternative, Patient Results, Evidence

PROMs

Qualitative versus Quantitative

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