(A) Adjusted* state rates of ED visits per 100 AL person-years, presented by quartile (2017). (B) Adjusted* state rates of injury-related ED visits per 100 AL person-years, presented by quartile (2017). Data come from the 2016 and 2017 Medicare Master Beneficiary Summary File and Chronic Conditions segment, the inpatient MedPAR file, and the Medicare outpatient claims. Categories represent quartiles. *Rate adjusted for age, race, sex, dual-eligibility, and chronic conditions.