a method of screening for disorders of glucose metabolism such as impaired glucose tolerance and diabetes allows prevention , or early detection and treatment of diabetic complications such as cardiovascular disease , retinopathy , and other disorders of the major organs and systems . a mathematical algorithm evaluates the shape of a subject &# 39 ; s glucose profile and classifies the profile into one of several predefined clusters , each cluster corresponding either to a normal condition or one of several abnormal conditions . the series of blood glucose values making up the glucose tolerance curve may be measured using any glucose analyzer including : invasive , minimally invasive and noninvasive types . the method is executed on a processing device programmed to perform the steps of the method . depending on the outcome of the screening , a subject may be provided with additional information concerning their condition and / or counseled to consult further with their health care provider .