Objective - To estimate the prevalence of obesity among people with type 2 diabetes (T2D) in mainland France, its characteristics, and its trends between 2001 and 2007. Materials and Methods - In 2007, a random sample selected 8,926 adults with diabetes who had been reimbursed for at least three antidiabetic medications over the previous 12 months. Medical utilization data were extracted; a patient questionnaire (PQ) was collected from 48% of the diabetic individuals (n = 3,894 T2D) and a physician questionnaire from 28% (n = 2,232 T2D). Analyses were weighted according to the sampling frame and non-response to the questionnaires. Data from Entred 2007 were compared with those from 2001 (n = 3,324 PQ). Results - In 2007, the mean age was 65 years; 41% of people with T2D were obese, 46% of women and 37% of men. The prevalence of obesity decreased with age, was higher among people with T2D treated with insulin (45% vs. 41%, p < 0.001), among people born in France compared to those born in the Maghreb (42% vs. 33%, p < 0.001), and among individuals of lower socioeconomic status after adjusting for age, sex, and duration of diabetes. The prevalence of obesity had increased between 2001 and 2007 (+7 percentage points) regardless of age, sex, ethnic origin, and socioeconomic status. This increase was greater among individuals treated with insulin compared to those with T2D not on insulin (+11 percentage points vs. +6 percentage points). Five percent had morbid obesity (BMI ≥ 40 kg/m²). Compared to T2D patients of normal weight (BMI < 25 kg/m²), they had, after adjusting for age, sex, and duration of diabetes, significantly higher systolic blood pressure (137 vs. 131 mmHg) and HbA1c (7.5% vs. 7.0%), as well as a higher prevalence of suspected sleep apnea (35% vs. 9%). They were more likely to receive dietary consultations (35% vs. 16%), general medical care (41% vs. 24% for 12 visits), and podiatric care (26% vs. 23%), but were less likely to have three HbA1c tests within the year (42% vs. 45%) in the private sector. They had received educational interventions more often. Discussion - The prevalence of obesity is increasing among people with type 2 diabetes. People born in the Maghreb are less obese, reflecting a higher genetic risk of diabetes at a lower level of obesity. Management increases with the level of obesity but remains insufficient given the higher cardiovascular risk. Source: poster cited in the journal "Diabetes & Metabolism" in Supplement 1, Volume 37, Issue 1.