Table 1.

PubMed search history

Search	Search terms	Hits
#1	Type 2 diabetes[tw] OR Type 2 diabetes mellitus[tw] OR T2DM[tw] OR insulin non dependent diabetes [tw]	199 276
#2	Education [tw] OR intervention [tw] OR behavioral intervention[tw] OR self-management [tw]	1 587 693
#3	Glycemic control [tw] OR glycosylated hemoglobin[tw] OR HbA1c[tw]	65 114
#4	Knowledge [tw] OR behavioral outcomes [tw]	851 164
#5	#1 AND #2 AND #3 AND #4	5428
#6	#5; limits: studies done with humans, English language, full text, RCT and publication year (2000–2020)	496

RCT, randomised controlled trial.