For each review, studies that meet the established inclusion criteria are summarized in a standardized format to generate a body of evidence. This body of evidence is rated using one of four categories for an overall evidence of effectiveness strength rating based on the combination of an effect size rating and study quality rating.
|Combined Evidence Minimum Criteria
|Effect Size Rating
|Insufficient (Very Low)
The following categories are used by an independent LMBP Workgroup to elaborate on LMBP systematic review findings.
|Consistent and high or moderate overall evidence of effectiveness strength rating of desirable effects
|No recommendation for or against
|Insufficient evidence to determine effectiveness
|Consistent evidence of adverse effects
* CDC does not make the recommendations, but aims to be a guarantor of the process by which the independent Workgroup makes its conclusions and recommendations.