Fig. 1From: Performance of quantitative measures of multimorbidity: a population-based retrospective analysisClassification of the tools for measuring multimorbidity according to the number of diagnoses included and the accountability for their severity. CCI: Charlson Comorbidity Index. GMA: adjusted morbidity groups (Spanish, Grupos de Morbilidad Ajustada). HCUP: healthcare cost and utilization project. QOF: Quality and Outcome FrameworkBack to article page