(h).

Citation/level and quality	Purpose	Sample/setting	Design	Results/conclusion	Recommendations
Alouki, et al. [24] Johns Hopkins level: I Quality: high quality	To investigate key findings of economic evaluations of lifestyle interventions for the primary prevention of type 2 diabetes (T2D) in high-risk subjects	20 articles were included. 7 were RCTs and 13 using modeling techniques. Publications conducted in patients with type 2 diabetes since January 2009.	Systematic review of RCTs	The importance of lifestyle interventions combining diet and physical activity to prevent diabetes in at-risk population groups.	Lifestyle interventions should be further stressed as an effective strategy to prevent or delay diabetes through creating effective and efficient diabetes education.