Fig. 1From: Clinical and economic burden associated with cardiovascular events among patients with hyperlipidemia: a retrospective cohort studyPatient Selection Flowchart. *Propensity score matching was applied for each cardiovascular disease risk cohort using covariates: age group, gender, US region, baseline Charlson comorbidity index score, Chronic Disease Score, comorbidities and number of inpatient admissions per patient per month. CV: cardiovascular; CHD RE: coronary heart disease risk equivalent; PSM: propensity score matchingBack to article page