ADA Evidence Grading System for “Standards of Medical Care in Diabetes”

Level of evidenceDescription
AClear evidence from well-conducted, generalizable randomized controlled trials that are adequately powered
BSupportive evidence from well-conducted cohort studies
CSupportive evidence from poorly controlled or uncontrolled studies
Conflicting evidence with the weight of evidence supporting the recommendation
EExpert consensus or clinical experience
  • For additional information, please refer to the complete 2015 Standards (1).