The purpose of this study is to evaluate the prevalence of Type 2 diabetes or impaired glucose tolerance in a subset of children 10-19 years of age in an inner city community clinic. The demographics of the clinic are 75% African American, 20% Hispanic, 5% other. African American and Hispanic patients have a higher prevalence of diabetes with significant morbidity, predominantly from microvascular and macrovascular disease. Obesity is commonly seen in patients with Type 2 diabetes and contributes to the underlying insulin resistance seen in the disease. Obesity is an increasing health problem among adolescents. Since Type 2 diabetes can be present for several years before diagnosis, it is worrisome that younger children will have undiagnosed Type 2 diabetes for years. This will increase the risk of earlier complications in these patients as young adults.