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  • Title: Healthcare Utilization and Statin Re-Initiation Among Medicare Beneficiaries With a History of Myocardial Infarction.
    Author: Booth JN, Colantonio LD, Rosenson RS, Safford MM, Chen L, Kilgore ML, Brown TM, Taylor B, Dent R, Monda KL, Muntner P, Levitan EB.
    Journal: J Am Heart Assoc; 2018 May 08; 7(10):. PubMed ID: 29739799.
    Abstract:
    BACKGROUND: Contact with the healthcare system represents an opportunity for individuals who discontinue statins to re-initiate treatment. To help identify opportunities for healthcare providers to emphasize the risk-lowering benefits accrued through restarting statins, we determined the types of healthcare utilization associated with statin re-initiation among patients with history of a myocardial infarction. METHODS AND RESULTS: Medicare beneficiaries with a statin pharmacy fill claim within 30 days of hospital discharge for a myocardial infarction in 2007 to 2012 (n=158 795) were followed for 182 days postdischarge to identify treatment discontinuation, defined as 60 continuous days without statins (n=24 461). Re-initiation was defined as a statin fill within 365 days of the discontinuation date (n=13 136). Using a case-crossover study design and each beneficiary as their own control, healthcare utilization during 0 to 14 days before statin re-initiation (case period) was compared with healthcare utilization 30 to 44 days before statin re-initiation (control period). The mean age of beneficiaries was 75.4 years; 52.8% were women and 81.9% were white. For routine healthcare utilization, the odds ratio (95% confidence interval) for statin re-initiation associated with lipid panel testing was 2.65 (1.93-3.65), outpatient primary care was 1.31 (1.23-1.40), and outpatient cardiologist care was 1.38 (1.28-1.50). For acute healthcare utilization, the odds ratio (95% confidence interval) for statin re-initiation associated with emergency department visits was 1.77 (1.31-2.40), coronary heart disease (CHD) hospitalizations was 3.16 (2.41-4.14) and non-coronary heart disease hospitalizations was 1.73 (1.49-2.01). CONCLUSIONS: The weaker association of routine versus acute healthcare utilization with statin re-initiation suggests missed opportunities to reinforce the importance of statin therapy for secondary prevention.
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