According to an analysis of data on diabetes in the US shows that nearly 13% people aged 20 and above have diabetes and nearly 40% among them have not been diagnosed yet.

In a previous study, the rates of undiagnosed people were almost the same, but this study shows a larger proportion of diabetics than found in that previous study.

Catherine C. Cowie, the lead author of the study, says in this connection: “It can be said without any doubt that the cases of diagnosed diabetes have considerably increased that were 5.1% from 1988 to 1994 and were 7.7% from 2005 to 2006. It has been also observed that the cases of diagnosed diabetes have increased in African-Americans particularly.”

“While, the number of undiagnosed and pre-diabetes cases is still quite stable with 30% and it’s, indeed, a good news,” Catherine added. “If the cases of undiagnosed diabetes remain the same and diagnosed cases go up, it means we are doing a good job in detecting these cases.”

The study has been published in the journal Diabetes Care, February issue.

According to some experts, it is still quite troublesome that the prevalence of pre- diabetic conditions is getting extensive. In pre-diabetes conditions, blood glucose levels are quite higher than the normal one, but these levels can’t be classified as diabetes. People with these conditions have a higher risk of getting type2 diabetes as well as stroke.