Fig. 3
From: The older, the less potential benefit for type 2 diabetes from weight control
The association between BMI and T2DM. Logistic regression analyses, with restricted cubic splines, were performed with stratification for region and age. A BMI of 30 kg/m2 was chosen as a reference. A 50% reduction in the risk of T2DM was fitted by ΔBMI; estimates showed that the OR decreased from 1.0 to 0.5 (ΔBMI = BMIOR1.0 – BMIOR0.5). The red lines and the dotted lines represent the odds ratios and the 95% confidence intervals, respectively