Clinical and economic burden associated with cardiovascular events among patients with hyperlipidemia: A retrospective cohort study

Kathleen M. Fox, Li Wang, Shravanthi R. Gandra, Ruben G.W. Quek, Lu Li, Onur Baser

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Background: Annual direct costs for cardiovascular (CV) diseases in the United States are approximately $195.6 billion, with many high-risk patients remaining at risk for major cardiovascular events (CVE). This study evaluated the direct clinical and economic burden associated with new CVE up to 3years post-event among patients with hyperlipidemia. Methods: Hyperlipidemic patients with a primary inpatient claim for new CVE (myocardial infarction, unstable angina, ischemic stroke, transient ischemic attack, coronary artery bypass graft, percutaneous coronary intervention and heart failure) were identified using IMS LifeLink PharMetrics Plus data from January 1, 2006 through June 30, 2012. Patients were stratified by CV risk into history of CVE, modified coronary heart disease risk equivalent, moderate- and low-risk cohorts. Of the eligible patients, propensity score matched 243,640 patients with or without new CVE were included to compare healthcare resource utilization and direct costs ranging from the acute (1-month) phase through 3years post-CVE date (follow-up period). Results: Myocardial infarction was the most common CVE in all the risk cohorts. During the acute phase, among patients with new CVE, the average incremental inpatient length of stay and incremental costs ranged from 4.4-6.2days and $25,666-$30,321, respectively. Acute-phase incremental costs accounted for 61-75% of first-year costs, but incremental costs also remained high during years 2and3post-CVE. Conclusions: Among hyperlipidemic patients with new CVE, healthcare utilization and costs incurred were significantly higher than for those without CVE during the acute phase, and remained higher up to 3years post-event, across all risk cohorts.

Original languageEnglish (US)
Article number13
JournalBMC Cardiovascular Disorders
Volume16
Issue number1
DOIs
StatePublished - Jan 14 2016

Keywords

  • Cardiovascular events
  • Clinical burden
  • Economic burden
  • Hyperlipidemia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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