“…Secondly, we collected all the articles published until December 2020 that reported risk factors for diabetes like gender, age, smoking, family history of diabetes, physical inactivity, BMI, hypertension, metabolic syndrome in normal volunteers from thirteen region of Saudi Arabia. Thirteen regions were clustered into five regions: Central region -Riyadh [13,14], Eastern region -Dammam and related cities [15], Northern region-Qassim [16], Tabuk [17], Hail [18], Arar [19], Aljouf [20], Southern region -Jazan [3], Albaha and Western region -Makkah [21], Jeddah [22], Madinah [23]. Studies that only considering physical inactivity and smoking risk factors, and risk factors in diabetic patients, were excluded.…”