Aims: Prevention of type 2 diabetes (T2DM) is a priority in healthcare, but there is a lack of evidence investigating how to effectively translate prevention research into a UK primary care setting. We assessed whether a structured education programme targeting lifestyle and behaviour change was effective at preventing progression to T2DM in people with prediabetes..
Materials and methods:44 General Practices were randomised to receive either standard care or a six hour group structured education programme with an annual refresher course, and regular phone contact. Participants were followed up for 3 years. The primary outcome was progression to T2DM.Results: Eight hundred and eighty participants were included (36% female, mean age 64 years, 16% ethnic minority group); 131 participants developed T2DM. There was a nonsignificant 26% reduced risk of developing T2DM in the intervention arm compared to standard care (HR 0.74, 95%CI 0.48, 1.14, p=0.18). The reduction in T2DM risk when excluding those who did not attend the initial education session was also non-significant (HR 0.65, 0.41, 1.03, p=0.07). There were statistically significant improvements in HbA1c (-0.06, -0.11, -0.01), LDL cholesterol (-0.08, -0.15, -0.01), sedentary time (-26.29, -45.26, -7.32) and step count (498.15, 162.10, 834.20) when data were analysed across all time points.
Conclusions:This study suggests that a relatively low resource, pragmatic diabetes prevention programme resulted in modest benefits to biomedical, lifestyle and psychosocial outcomes, however the reduction to the risk of T2DM did not reach significance. The findings have important implications for future research and primary care.Trial Registration: ISRCTN80605705