Table 1.

Summary of search strategy

Element	Criteria
1. Disease	Contained one of these terms in any field: “diabetes mellitus” or “type 2 diabetes” or “type II diabetes” or “non-insulin dependent diabetes”
2. Intervention	Met one of the criteria below
a	Contained one of these terms in any field: “glucagon like peptide 1 receptor agonist” or “glucagon-like peptide 1 receptor agonist” or “glucagon-like peptide 1 agonist” or “GLP-1 receptor agonist” or “GLP-1 agonist”
b	Contained one of these terms in any field: “exenatide” or “liraglutide” or “benaglutide” or “beinaglutide” or “lixisenatide” or “dulaglutide” or “loxenatide” or “PEX168”
3. Design	Contained one of these terms in any field: “randomized controlled trial” (RCT) or “randomised controlled trial” or “randomized trial” or “randomised trial”