Effects of nonpersistence with medication on outcomes in high-risk patients with cardiovascular disease

Michael Boehm*, Helmut Schumacher, Ulrich Laufs, Peter Sleight, Roland Schmieder, Thomas Unger, Koon Teo, Salim Yusuf

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

47 Citations (Web of Science)

Abstract

The impact of nonpersistence on events and of events on persistence is unclear. We studied the effects of nonpersistence on outcomes and events on nonadherence in a randomized placebo controlled trial in 40 countries on 25,620 patients.In the ONgoing Telmisartan Alone and in combination with Ramipril Global Endpoint Trial (ONTARGET), persistent patients (n = 20,991) were compared with individuals who had permanently stopped study medications (n = 4,629).Older age, female gender, less physical activity, less education, and history of stroke/transient ischemic attack, depression, and diabetes were associated with nonpersistence. After adjustment, nonpersistence was associated with the composite end point of cardiovascular death, myocardial infarction, stroke, or hospitalization for heart failure (hazard ratio 1.24, 99% CI 1.09-1.40, P <.0001), cardiovascular death alone (1.87, 1.60-2.19, P <.0001), and heart failure hospitalization alone (1.32, 1.04-1.67, P = .0023). Cardiovascular events increased when medications were stopped, whereas noncardiovascular outcomes did not. Nonpersistence rapidly increased within the first year after nonfatal events such as myocardial infarction (hazard ratio 3.37, 99% CI 2.72-4.16, P <.0001), stroke (3.25, 2.59-4.07, P <.0001), and hospitalization for heart failure (3.67, 2.95-4.57, P <.0001). Persistence was poorer with more frequent and earlier events. Patients stopping medication after an event were at greater risk for subsequent events.Improving medications persistence could interrupt this vicious circle and may improve outcomes.
Original languageEnglish
Pages (from-to)306-314
JournalAmerican Heart Journal
Volume166
Issue number2
DOIs
Publication statusPublished - Aug 2013

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