Primary Non-Adherence to Preventive Drugs and Associations with Beliefs About Medicines in Stroke Survivors

The influence of patients' beliefs about medicines and the relationship with suboptimal medicine use in community-dwelling older adults: a systematic review of quantitative studies

BACKGROUND

Medication use in older adults is increasing, therefore, reducing the risk of suboptimal medicine use is imperative in achieving optimal therapeutic outcomes. Research suggests that factors such as personal beliefs and beliefs about medicines may be associated with non-adherence and inappropriate medicine use.

AIM

To systematically review and identify quantitative research on the influence of beliefs about medicines and the relationship with suboptimal medicine use in older adults.

METHOD

Searches were conducted on PubMed, EMBASE, CINAHL, and PsycINFO for quantitative studies (inception to March 2023).

INCLUSION CRITERIA

(1) exposure: participants' beliefs (personal, cultural, and medication-related), (2) outcomes: polypharmacy, potentially inappropriate medicines use, or non-adherence, and (3) participants: community-dwelling adults 65 years or above. Study selection, data extraction and quality appraisal (Joanna Briggs Institute critical appraisal checklist) were completed independently by two investigators. Data were combined in a narrative synthesis and presented in a summary of findings table.

RESULTS

Nineteen articles were included: 15 cross-sectional and four cohort studies. Outcomes of included papers were as follows; adherence (n = 18) and potentially inappropriate medicine use (n = 1). Ten studies found stronger beliefs in the necessity of medicines and/or fewer concerns led to better adherence, with one paper contradicting these findings. Three studies did not find associations between adherence and beliefs. One study confirmed an association between unnecessary drug use and a lack of belief in a "powerful other" (e.g. doctor).

CONCLUSION

Further investigation is necessary to (1) ascertain the importance of necessity or concern beliefs in fostering adherence and, (2) examine the influence of beliefs on polypharmacy and inappropriate medicine use.

Utilizing Social Determinants of Health Model to Understand Barriers to Medication Adherence in Patients with Ischemic Stroke: A Systematic Review

Introduction

Ischemic strokes and their recurrence create an immense disease burden globally. Therefore, preventing recurrent strokes by promoting medication adherence is crucial to reduce morbidity and mortality. In addition, understanding the barriers to medication adherence related to the social determinants of health (SDoH) could promote equity among persons with ischemic stroke.

Objective

To explore the barriers to medication adherence among patients with ischemic stroke through the SDoH.

Methods

This systematic review included studies published between January 2018 and December 2022 identified through PubMed, MEDLINE, Web of Science, and CINAHL Plus Full Text. The descriptions of the studies were systematically summarized and discussed based on the SDoH from the US Healthy People 2030 initiative.

Results

Eight studies met the inclusion criteria and were included in this review. The most common barrier to adherence was inappropriate medication beliefs, medication side effects, and patient-physician relationship, which relate to the dimensions of healthcare access and quality. Health literacy and health perception, dependent on education access and quality, frequently influenced adherence. Other social determinants, such as financial strain and social and community context, were found to alter adherence behaviors. No study addressed the neighborhood and built environment domain. We found that cognitive impairment is another factor that impacts adherence outcomes among stroke patients.

Conclusion

Multifaceted approaches are needed to address the SDoH to improve medication adherence among patients with ischemic stroke. This review emphasized strategies, including patient education, provider-patient communication, social support, health literacy, technology, and policy advocacy to enhance adherence.

Determinants of adherence to treatment in patients with ophthalmic conditions

BACKGROUND

The objective of this study was to identify and determine factors associated with patients' ophthalmic adherence in common ocular conditions from randomized clinical trials (RCT).

RESEARCH DESIGN METHODS

A univariate analysis with proportions, a bivariate analysis using polychoric correlations, and logistic regression (LR) models were used. The collected dataset was made up of records from RCT. Using three validated LR models, factors were identified and ranked based on their adjusted odds ratio and their statistical significance to adherence.

RESULTS

A total of 1,087 valid patients were included in this analysis, of which 88.96% presented adherence. All models were calibrated, had a good performance, were well specified and cost-effective using the Hosmer-Lemeshow test, metrics for class imbalance, link test approach and Akaike's criteriums, respectively.

CONCLUSION

We identified as determinants for encouraging good ophthalmic adherence the adverse events presented, duration of the study, female sex, and older age; other determinants such as medical condition, protocol treatment, type of treatment and disease are all risk factors for adherence. Improvements in ophthalmic adherence may be achieved by focused attention to young male patients with chronic degenerative diseases such as glaucoma or ocular hypertension (especially those who need combination therapy) and developing medications with reduced side effects.

Nonadherence to lipid-lowering therapy and strategies to improve adherence in patients with atherosclerotic cardiovascular disease

Despite the availability of effective therapies that lower low-density lipoprotein cholesterol (LDL-C) levels in patients with atherosclerotic cardiovascular disease, many eligible patients are inadequately treated and their LDL-C levels remain suboptimal. Patient nonadherence to lipid-lowering therapy (LLT) is a major contributor to the failure of LDL-C goal attainment. Several factors have been identified as contributing to LLT nonadherence, including healthcare disparities due to socioeconomic status, age, race, sex, and cost; limited access to healthcare; perceived side effects associated with LLT; health literacy; and the presence of comorbidities. Suboptimal LLT use has also been associated with clinician factors, including failure to identify patients who require LDL-C reassessment, insufficient LDL-C monitoring, and clinical inertia such as a lack of therapy intensification. Several strategies to enhance LLT adherence have been shown to be effective, including the implementation of educational initiatives and tools for both patients and physicians, the use of clinical protocols and algorithms to identify patients at risk and optimize treatment, and improvements in electronic healthcare records. Pharmacy-based programs designed to help patients with prescription refills, including reminders or the use of prescription delivery by mail, have also proven effective. Drugs requiring frequent administration can represent a barrier to treatment adherence; therefore, newer, more effective LLTs with lower frequency of administration and lower potential for polypharmacy may improve patient adherence to LLT. Implementation of strategies to identify patients at risk for LLT nonadherence and the use of flexible tools such as telemedicine to overcome geographical barriers may improve LLT adherence.

Older Individuals' Experiences of Medication Management and Care After Discharge from Hospital: An Interview Study

PURPOSE

To develop an in-depth understanding of older individuals' attitudes and perceptions of medication management and care after discharge from hospital-to-home.

PATIENTS AND METHODS

A qualitative study using semi-structured interviews with selected individuals 75 years and older, discharged from hospital within the last 6-12 months, living at home, and managing their own medications. Face-to-face interviews were audio-recorded, transcribed and analyzed with thematic analysis.

RESULTS

Among the 15 respondents, mean age was 83.5 years (range 75-95 years), 67% were women, and 60% lived alone. The majority (80%) managed their medications with a pill organizer or directly from the pill boxes, while 20% used dose dispensed medications. The analysis of the data led to six themes: Medication adherence, Personal responsibility, Transitions of care, Beliefs about medications, Participation (experience of participation, willingness to participate) and Accessibility (easier to reach hospital than primary care, navigating in the care system, continuity, personal chemistry).

CONCLUSION

The included respondents who were older individuals, living at home and managing their own medications, expressed that they were medical adherent and self-managing. Two important aspects which were seen were difficulties to reach primary care on their own initiative and the lack of continuity with the same physician over a longer period of time.