Background: A digital Diabetes Prevention Program (dDPP) has been shown to reduce the 8-year risk of diabetes in the first year of implementation in a workforce setting. We asked whether the dDPP reduced the risk of diabetes in a second year.

Methods: Individuals were included in the study if they (i) participated in an employer-sponsored wellness program with year-end biometric screening for 4 consecutive years (2016 to 2019), (ii) had prediabetes-range fasting glucose (100 to 125 mg/dL) or Hb1Ac (5.7% to 6.4%), (iii) a BMI ≥25 kg/m2 at the end of 2017, and (iv) completed ≥9 lessons in a dDPP initiated at the beginning of 2018. In the first year of the dDPP, individuals participated in weekly online lessons. In the second year, no new content was introduced, but individuals had access to lessons delivered in year 1.

Results: The baseline characteristics from the 2017 year-end screen are provided (Table). On average, participants (n=401) completed 25.1 lessons (SD: 12.3). In the second year of intervention, levels of BMI, fasting glucose, triglycerides and HDL-C, all components of the 8-year diabetes risk score, improved relative to changes observed in the year before intervention. The 8-year risk of developing diabetes was also reduced (Table).

Conclusions: The risk of developing type 2 diabetes was reduced in the second year of a dDPP.


C.E. Birse: Employee; Self; Quest Diagnostics. M.S. Fragala: Employee; Self; Quest Diagnostics. A.R. Arellano: None. L.A. Bare: Employee; Self; Quest Diagnostics. C. Castro Sweet: Employee; Self; Omada Health. R.J. Lagier: Employee; Self; Quest Diagnostics. Employee; Spouse/Partner; Thermo Fisher Scientific.

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