Abstract
Background and Objective
Non-persistence with secondary preventive measures, including medications such as statins, adversely affects the prospects of successful outcomes. This study was aimed at evaluating non-persistence with statin therapy in cohorts of young and elderly patients after a transient ischaemic attack (TIA) and identifying patient-associated characteristics that influence the risk for non-persistence.
Methods
The study cohorts included 797 adult patients who were initiated on statin therapy following a TIA diagnosis between 1 January 2010 and 31 December 2010. Patients were followed up for 3 years and those with a treatment gap of at least a 6-month period were considered 'non-persistent'. In order to identify any age-related differences, all analyses were conducted in the entire study cohort (n = 797) as well as separately in the 'younger' (aged <65 years, n = 267) and the 'older' (aged ≥65 years, n = 530) patients.
Results
Non-persistence was significantly more common in younger patients compared to older patients (67.8% vs. 49.1%; p < 0.001). Factors that decreased the probability of non-persistence in younger and older patients included diabetes mellitus (hazard ratio [HR] = 0.72 and HR = 0.64, respectively) and hypercholesterolaemia (HR = 0.43 and HR = 0.62, respectively). Female gender (HR = 1.42) was associated with a higher and increasing number of medications taken (HR = 0.93), with lower probability for non-persistence in younger patients but not in the older patients.
Conclusions
Our results indicate that certain patients with TIA require special counselling to improve persistence with statin therapy. These include younger patients, especially females and those not on polypharmacy, and both younger and older patients without diabetes mellitus or hypercholesterolaemia.
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,