Help with level of evidence

  1. Hi, please can someone tell me how I work out the level of evidence of an article using the NHMRC level of evidence.

    So what level of evidence would these three articles be

    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2881986/

    http://onlinelibrary.wiley.com/doi/1....pub2/abstract

    http://onlinelibrary.wiley.com/doi/1...5328.pub2/full
    •  
  2. 3 Comments

  3. by   Esme12
    We love helping with homework but we need your input first. Tell us what you think and start the dialog and we will chime in!
  4. by   Chynna21
    Thanks, but I'm new to this and really don't understand how I work it out. Do you know of any sites that can help me with working this out.
  5. by   Esme12
    Right.....well....what does your school tell you about ranking medical information? I am from the US and I found these resources on Google.

    http://www.nhmrc.gov.au/_files_nhmrc...ments/cp69.pdf
    http://www.nhmrc.gov.au/guidelines/r...ine-developers
    http://www.nhmrc.gov.au/_files_nhmrc...ments/cp65.pdf
    http://evidencebasedmedicine.com.au/?page_id=30

    Level I

    Evidence obtained from a systematic review of all relevant randomised controlled trials.
    Level II

    Evidence obtained from at least one properly designed randomised controlled trial.
    Level III-1

    Evidence obtained from well-designed pseudo-randomised controlled trials (alternate allocation or some other method).
    Level III-2

    Evidence obtained from comparative studies with concurrent controls and allocation not randomised (cohort studies), case control studies, or interrupted time series with a control group.
    Level III-3

    Evidence obtained from comparative studies with historical control, two or more single-arm studies, or interrupted time series without a parallel control group.
    Level IV

    Evidence obtained from case series, either post-test or pre-test and post-test.
    http://www.joannabriggs.edu.au/Levels of Evidence FAME
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3053308/
    http://www.biomedcentral.com/1471-2288/9/34
    Last edit by Esme12 on Apr 18, '13

close