Table 2.

ADA evidence-grading system for ‘Standards of Medical Care in Diabetes’ [78]

Grade level	Description
A	Clear evidence from well-conducted, generalisable randomised controlled trials that are adequately powered
B	Supportive evidence from well-conducted cohort studies
C	Supportive evidence from poorly controlled or uncontrolled studies
E	Expert consensus or clinical experience

Where data are conflicting or lacking, advice is provided that is based on expert opinion and experience in T2D management

ADA American Diabetes Association