Fig. 1From: Factors associated with chronic frequent emergency department utilization in a population with diabetes living in metropolitan areas: a population-based retrospective cohort studyStudy cohort flow diagram. * A patient was considered living with diabetes if he/she received a diagnosis of diabetes (ICD-9: 250; ICD-10: E10-E14) during a hospitalization or at least three physician claims within 1 year with an identical diagnosis. ** MA: Metropolitan areaBack to article page