“…Most studies included female participants (65.0–100%). Except for three studies, most of the studies reported the method of case ascertainment, mostly based either on chart review [ 13 , 33 , 40 , 44 , 47 ], self-reported and/or hypoglycaemic medication use [ 3 , 11 , 12 , 14 , 15 , 23 , 24 , 27–29 , 31 , 41 , 45 , 46 , 48 , 49 ] or International Classification of Disease (ICD) codes [ 19–22 , 25 , 26 , 28 , 32 , 34–37 , 39 , 42 , 43 ].…”