Levels of Scientific Evidence Guide

Explore the five Levels of evidence to use while making educated determinations about prescribing and care.

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References:

Burns PB, Rohrich RJ, Chung KC. The levels of evidence and their role in evidence-based medicine. Plast Reconstr Surg. 2011 Jul;128(1):305-310. doi: 10.1097/PRS.0b013e318219c171. PMID: 21701348; PMCID: PMC3124652.
Johns Hopkins Nursing Evidence-Based Practice guide – https://libguides.ohsu.edu/ld.php?content_id=16277844
Stony Brook University Evidence-Based Medicine guide – https://guides.library.stonybrook.edu/evidence-based-medicine/levels_of_evidence
University of California Irvine Evidence-Based Medicine Subject Guide: EBM Pyramid – https://guides.lib.uci.edu/ebm/pyramid

Cite this work:

OPEN: Overdose Prevention Engagement Network (2026). Levels of Scientific Evidence Guide. Retrieved from https://doi.org/10.56137/OPEN.000077

Overdose Prevention Engagement Network (OPEN), michigan-open.org

This content made available via the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) license.