Why is it hard to detect the prevalence of type 2 diabetes in children?
It is hard to detect type 2 diabetes in children because it can go undiagnosed for a long time; because children may have no symptoms or mild symptoms; and because blood tests are needed for diagnosis. It is difficult to be sure it is type 2, because criteria for differentiating between types of diabetes in children are confusing; that is, children with type 2 can develop ketoacidosis (acid build-up in the blood); children with type 1 can be overweight; and because the overall prevalence of the disease may still be low. This means that scientists will have to sample a very large population of children in order to find a stable estimate of prevalence.