A fuzzy logic approach to measure overweight

We apply fuzzy sets theory to measure the extent of overweight in Luxembourg. This methodology permits to differentiate between mild or severe forms of overweight and to identify the sub-populations which contribute most to global overweight. The application to residents of Luxembourg shows that natives are those who contribute most to global overweight. Specifically, men are more affected than women, the intensity of overweight is more severe with age and the more educated are less affected by obesity.