Robert S Rosenson1, Shia T Kent2, Todd M Brown3, Michael E Farkouh4, Emily B Levitan2, Huifeng Yun2, Pradeep Sharma2, Monika M Safford3, Meredith Kilgore5, Paul Muntner2, Vera Bittner3. 1. Icahn School of Medicine at Mount Sinai, New York, New York. Electronic address: robert.rosenson@mssm.edu. 2. Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama. 3. Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama. 4. Icahn School of Medicine at Mount Sinai, New York, New York; Division of Cardiology, University of Toronto, Toronto, Ontario, Canada. 5. Department of Healthcare Organization and Policy, University of Alabama at Birmingham, Birmingham, Alabama.
Abstract
BACKGROUND: National guidelines recommend use of high-intensity statins after hospitalization for coronary heart disease (CHD) events. OBJECTIVES: This study sought to estimate the proportion of Medicare beneficiaries filling prescriptions for high-intensity statins after hospital discharge for a CHD event and to analyze whether statin intensity before hospitalization is associated with statin intensity after discharge. METHODS: We conducted a retrospective cohort study using a 5% random sample of Medicare beneficiaries between 65 and 74 years old. Beneficiaries were included in the analysis if they filled a statin prescription after a CHD event (myocardial infarction or coronary revascularization) in 2007, 2008, or 2009. High-intensity statins included atorvastatin 40 to 80 mg, rosuvastatin 20 to 40 mg, and simvastatin 80 mg. RESULTS: Among 8,762 Medicare beneficiaries filling a statin prescription after a CHD event, 27% of first post-discharge fills were for a high-intensity statin. The percent filling a high-intensity statin post-discharge was 23.1%, 9.4%, and 80.7%, for beneficiaries not taking statins pre-hospitalization, taking low/moderate-intensity statins, and taking high-intensity statins before their CHD event, respectively. Compared with beneficiaries not on statin therapy pre-hospitalization, multivariable adjusted risk ratios for filling a high-intensity statin were 4.01 (3.58-4.49) and 0.45 (0.40-0.52) for participants taking high-intensity and low/moderate-intensity statins before their CHD event, respectively. Only 11.5% of beneficiaries whose first post-discharge statin fill was for a low/moderate-intensity statin filled a high-intensity statin within 365 days of discharge. CONCLUSIONS: The majority of Medicare beneficiaries do not fill high-intensity statins after hospitalization for CHD.
BACKGROUND: National guidelines recommend use of high-intensity statins after hospitalization for coronary heart disease (CHD) events. OBJECTIVES: This study sought to estimate the proportion of Medicare beneficiaries filling prescriptions for high-intensity statins after hospital discharge for a CHD event and to analyze whether statin intensity before hospitalization is associated with statin intensity after discharge. METHODS: We conducted a retrospective cohort study using a 5% random sample of Medicare beneficiaries between 65 and 74 years old. Beneficiaries were included in the analysis if they filled a statin prescription after a CHD event (myocardial infarction or coronary revascularization) in 2007, 2008, or 2009. High-intensity statins included atorvastatin 40 to 80 mg, rosuvastatin 20 to 40 mg, and simvastatin 80 mg. RESULTS: Among 8,762 Medicare beneficiaries filling a statin prescription after a CHD event, 27% of first post-discharge fills were for a high-intensity statin. The percent filling a high-intensity statin post-discharge was 23.1%, 9.4%, and 80.7%, for beneficiaries not taking statins pre-hospitalization, taking low/moderate-intensity statins, and taking high-intensity statins before their CHD event, respectively. Compared with beneficiaries not on statin therapy pre-hospitalization, multivariable adjusted risk ratios for filling a high-intensity statin were 4.01 (3.58-4.49) and 0.45 (0.40-0.52) for participants taking high-intensity and low/moderate-intensity statins before their CHD event, respectively. Only 11.5% of beneficiaries whose first post-discharge statin fill was for a low/moderate-intensity statin filled a high-intensity statin within 365 days of discharge. CONCLUSIONS: The majority of Medicare beneficiaries do not fill high-intensity statins after hospitalization for CHD.
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