Fig. 2From: Generating comprehensive functioning and disability data worldwide: development process, data analyses strategy and reliability of the WHO and World Bank Model Disability SurveyExample of the performance metric and distribution of the population on the continuum ranging from 0 (lowest level of problems) to 100 (highest levels of problems). No, mild, moderate, and severe are the defined disability levels using pre-defined thresholds (separated by the dashed lines)Back to article page