Study participant’s hospitalized and outpatient heart failure classification scheme, ARIC cohort members enrolled in Medicare Fee-for-Service, 2000–2012
Two outpatient heart failure visits occurring within 12 consecutive months are considered a diagnosis of heart failure in the outpatient setting. An outpatient heart failure diagnosis can be considered prevalent if preceded by either an outpatient heart failure diagnosis or a heart failure hospitalization in the look-back period.