For judgments as to both the evidence behind and recommendations developed for the 2011 Cervical Cancer Screening and Prevention: The Role of Molecular Testing Symposium, the GRADE system was used.  To learn more about GRADE, please see the following websites:

GRADE home page

GRADE publications (all available free online)

GRADE introductory presentation

GRADE videos by Gordon Guyatt (presentation to American Thoracic Society for guidelines)

A similar system for quality criteria was used by AHRQ and its investigators for its United States Preventative Services Task Force recommendations.  To review their system’s approach, please see below:

Methods guide for systematic reviews

Methods guide for tests

Slides on grading