The study, conducted by the Diabetes Prevention Program Research Group, aimed to determine whether lifestyle intervention or metformin could prevent or delay the development of type 2 diabetes in individuals at high risk. The study involved 3234 participants who were randomly assigned to one of three groups: placebo, metformin, or a lifestyle intervention program. The lifestyle intervention program aimed for at least a 7% weight loss and 150 minutes of physical activity per week. The average follow-up was 2.8 years. The results showed that the incidence of diabetes was significantly lower in the lifestyle intervention group (4.8 cases per 100 person-years) compared to the placebo group (7.8 cases per 100 person-years) and the metformin group (11.0 cases per 100 person-years). The lifestyle intervention reduced the incidence by 58% (95% CI 48 to 66%), while metformin reduced it by 31% (95% CI 17 to 43%). The lifestyle intervention was more effective than metformin, with one case of diabetes prevented for every seven participants treated for three years. The study concluded that both lifestyle changes and metformin are effective in preventing or delaying type 2 diabetes, with the lifestyle intervention being particularly beneficial.The study, conducted by the Diabetes Prevention Program Research Group, aimed to determine whether lifestyle intervention or metformin could prevent or delay the development of type 2 diabetes in individuals at high risk. The study involved 3234 participants who were randomly assigned to one of three groups: placebo, metformin, or a lifestyle intervention program. The lifestyle intervention program aimed for at least a 7% weight loss and 150 minutes of physical activity per week. The average follow-up was 2.8 years. The results showed that the incidence of diabetes was significantly lower in the lifestyle intervention group (4.8 cases per 100 person-years) compared to the placebo group (7.8 cases per 100 person-years) and the metformin group (11.0 cases per 100 person-years). The lifestyle intervention reduced the incidence by 58% (95% CI 48 to 66%), while metformin reduced it by 31% (95% CI 17 to 43%). The lifestyle intervention was more effective than metformin, with one case of diabetes prevented for every seven participants treated for three years. The study concluded that both lifestyle changes and metformin are effective in preventing or delaying type 2 diabetes, with the lifestyle intervention being particularly beneficial.