Age and persistent use of cardiovascular medication after acute coronary syndrome: results from medication applied and sustained over time.
ABSTRACT To describe the persistent use of evidence-based cardiovascular medications (EBCMs) 3 months after discharge from an acute coronary syndrome (ACS) event and patient-reported reasons for nonpersistence across age groups.
Medication Applied and Sustained Over Time (MAINTAIN) is a longitudinal follow-up cohort study of the Can Rapid Risk Stratification of Unstable Angina Patients Suppress ADverse Outcomes with Early Implementation quality improvement initiative and Acute Coronary Treatment and Intervention Outcomes Network registry.
Forty-one acute care hospitals in the United States from January 2006 to September 2007.
One thousand fifty-four patients with a median age of 60 (interquartile range 52-71), including 27% aged 70 and older, admitted with an ACS.
Three-month posthospital discharge telephone follow-up with EBCMs reviewed and reconciled. Patients who reported nonpersistence were surveyed regarding reasons for EBCM discontinuation.
At 3-month follow-up, overall persistence was 71.2%. There was a significant trend toward lower overall persistence with prescribed EBCMs in older adults than in the other age groups (74.9% for <60, 71.0% for 60-69, 64.5% for > or =70; P=.02). Overall, 112 (10.6%) patients discontinued EBCMs with provider advice, and 178 (16.9%) self-discontinued. Provider discontinuation increased across age groups (9.1%, 10.4%, and 13.6%, respectively). A similar trend was observed for EBCM self-discontinuation (15.2%, 17.0%, and 19.9%, respectively). Reasons for self-discontinuation included adverse effects, cost, and perception that the medication was not needed.
Older patients are less likely to be persistent with EBCMs after an ACS event at 3-month follow-up. Understanding patient-reported reasons for discontinuation can influence intervention strategies to improve long-term adherence to EBCMs.
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ABSTRACT: Rationale, aims and objectives Poor medication adherence is a major global public health challenge. A valid, reliable, cost-effective tool for measuring medication adherence would lead to a better understanding of non-adherence and lay the groundwork for interventions aimed at facilitating adherence to therapies. The aim of this study was to translate and evaluate the psychometric properties of the Chinese version of the 8-item Morisky medication adherence scale (C-MMAS-8) in Chinese myocardial infarction (MI) patients.Methods Psychometric testing of the C-MMAS-8 was conducted using a convenience sample of 176 MI patients recruited from four major hospitals in Guangzhou in southern China. Socio-demographic data, C-MMAS-8 and three subscales of the revised illness perception questionnaire (treatment control, personal control and illness coherence subscales) were administered to the MI patients. Thirty MI patients participated in a 4-week retest.Results The C-MMAS-8 demonstrated good internal consistency (Cronbach's α = 0.77) and test–retest reliability (r = 0.88, P < 0.001). Significant correlations with treatment control subscale (r = 0.32, P < 0.01), personal control subscale (r = 0.47, P < 0.01), and illness coherence subscale (r = 0.44, P < 0.01) of the revised illness perception questionnaire demonstrated good construct validity.Conclusions The psychometric properties of the C-MMAS-8 are satisfactory.Journal of Evaluation in Clinical Practice 06/2014; 20(4). DOI:10.1111/jep.12125 · 1.58 Impact Factor
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ABSTRACT: Adherence to secondary prevention medications following acute coronary syndrome (ACS) is disappointingly low, standing around 40-75% by various estimates. This is an inefficient use of the resources devoted to their development and implementation, and also puts patients at higher risk of poor outcomes post-ACS. Numerous factors contribute to low adherence including poor motivation, forgetfulness, lack of education about medications, complicated polypharmacy of ACS regimens, (fear of) adverse side effects and limited practical support. Using technology to improve adherence in ACS is an emerging strategy and has the potential to address many of the above factors-computer-based education and mobile phone reminders are among the interventions trialled and appear to improve adherence in patients with ACS. As we move into an increasingly technological future, there is potential to use devices such as smartphones and tablets to encourage patient responsibility for medications. These handheld technologies have great scope for allowing patients to view online medical records, education modules and reminder systems, and although research specific to ACS is limited, they have shown initial promise in terms of uptake and improved adherence among similar patient populations. Given the overwhelming enthusiasm for handheld technologies, it would seem timely to further investigate their role in improving ACS medication adherence.01/2015; 2(1):e000166. DOI:10.1136/openhrt-2014-000166
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ABSTRACT: Background Few studies have evaluated age-related predictors associated with the underuse of medications in patients with coronary heart disease (CHD). The objective of this study was to identify age-related differences in the factors associated with the underuse of recommended medications in patients diagnosed with acute coronary syndrome (ACS). Methods From August 2009 to April 2011, we recruited 469 consecutive ACS patients from a cardiac center at a university hospital. We divided the patients into older (65 years of age and older, n = 202) and younger groups (younger than 65 years of age, n = 267). Data on socio-demographic characteristics, depressive symptoms, and medication use were obtained from a telephone survey administered 18 to 24 months after hospital discharge. Additionally, we asked the patients to provide reasons for not taking their medications. Results A significantly increased underuse of medication was noted in older patients compared with younger patients, including aspirin (24.8% vs. 37.1%, p = 0.005), beta-blockers (20.3% vs. 34.8%, p = 0.001), ACE inhibitor/angiotensin receptor blockers (27.2% vs. 36.7%, p = 0.030), and statins (21.8% vs. 29.6%, p = 0.005). Among older patients, the factors associated with the underuse of medications included low education level (odds ratio [OR], 3.93), greater number of comorbidities (OR, 1.64), and total number of discharge medications (OR, 1.31). The reasons provided by older patients for not taking medication included the fact that the medication was considered to be non-essential and the large number of medications. Among younger patients, low income (OR, 3.97) and depression (OR, 2.62) were predictors for underuse of medication, and the reasons provided for not taking medications included high costs and the fear of adverse effects. Conclusions At least one year after ACS hospital discharge, the underuse of recommended medications is related to low education level, comorbidities, and the total number of discharge medications in elderly patients, whereas underuse in younger patients is associated with low income and depression. The disparities related to these different predictors may have implications for age-related interventions targeting secondary preventions in CHD patients to improve their use of medication.BMC Cardiovascular Disorders 09/2014; 14(1):127. DOI:10.1186/1471-2261-14-127 · 1.50 Impact Factor