Impact of a Digital Diabetes Prevention Program on Estimated 8-Year Risk of Diabetes in a Workforce Population

Objective We asked whether the estimated 8-year risk of diabetes could be reduced within the first 2 years of a digital Diabetes Prevention Program (dDPP) in a workforce population. Methods Employees and spouses were eligible if they had prediabetes-range fasting glucose or hemoglobin A(1c) and body mass index >= 25 kg/m(2). Diabetes risk was assessed using the Framingham diabetes risk score in the year before and the 2 years after dDPP initiation. Results Among participants completing at least nine dDPP lessons (n = 286), diabetes risk decreased 5.3% the year after dDPP initiation, after a 5.4% increase the year before initiation (difference in differences, -10.6%; 95% confidence interval, -13.4% to -7.9%; P < 0.001), with risk maintained at reduced levels after the second year of the program. Conclusion This dDPP reduced the estimated 8-year risk of diabetes over the first 2 years of the program.