About 25 percent of those with prediabetes go on to develop diabetes within three to five years.
Villarivera C, Wolcott J, Jain A, Zhang Y, et al. The US Preventive Services Task Force Should Consider A Broader Evidence Base In Updating Its Diabetes Screening Guidelines. Health Aff. 2012; 31(1): 35-42. http://content.healthaffairs.org/content/31/1/35.abstract