Designing an over-the-counter consumer decision-making tool for older adults

Elevating Safe Use of Over-The-Counter Medications in Older Adults: A Narrative Review of Pharmacy Involved Interventions and Recommendations for Improvement

Over-the-counter (OTC) medications are products that have been made easily accessible to allow patients to treat common ailments without a prescription and the cost of a doctor's visit. These medications are generally considered safe; however, there is still a potential for these medications to lead to adverse health outcomes. Older adults (ages 50+) are especially susceptible to these adverse health outcomes, due to age-related physiological changes, a higher prevalence of comorbidities, and prescription medication use. Many OTC medications are sold in pharmacies, which provides pharmacists and technicians with the opportunity to help guide safe selection and use for these medications. Therefore, community pharmacies are the ideal setting for OTC medication safety interventions. This narrative review summarizes the findings of pharmacy-involved interventions that promote safe OTC medication use for older adults.

Consumer perceptions of the OTC Coach: A clinical decision support system aimed at improving the safe use of over-the-counter medications

BACKGROUND

There are more than 300,000 over-the-counter (OTC) medications on the market making it challenging for consumers to select safe and effective products to treat their minor ailments.

OBJECTIVE

We sought to identify consumer perceptions about the use of a clinical decision support system, OTC Coach, to help them make informed decisions about OTC medications.

METHODS

We developed a prototype of the OTC Coach that focused on treating fever in adults. We recruited community members who were 18 years and older via our institutional research website. Participants completed a 30- to 45-minute video interview in which they initially discussed their perceptions and experiences of using OTC medications. We subsequently shared the OTC Coach prototype and sought feedback related to the content and format of the tool. We asked participants to rate their likelihood of using the tool to treat a new symptom (10-point Likert scale, 1 = not at all to 10 = extremely likely) and conducted a qualitative and quantitative analysis of these findings.

RESULTS

Among 20 participants, 11 (55%) were female, 10 (50%) were white, and the mean age was 47.9 years (range 18-81 years). Participants reported that the tool was easy to understand. The questions reported as being extremely important by most participants were allergies (n = 17, 85%), increased risk of bleeding (n = 15, 75%), temperature (n = 12, 60%), and duration of symptoms (n = 12, 60%). Three-fourths of participants (n = 15) selected a score of 7 or higher when asked about their likelihood of using this tool for a new symptom. Concerns that were raised included ensuring that the tool accounted for their personal health history, data storage, and accessibility.

CONCLUSION

Consumers were interested in using an electronic tool to determine if their symptoms can be self-treated and, if so, which medications are appropriate.

Codesign approaches involving older adults in the development of electronic healthcare tools: a systematic review

OBJECTIVE

The primary aim was to review and synthesise the current evidence of how older adults are involved in codesign approaches to develop electronic healthcare tools (EHTs). The secondary aim was to identify how the codesign approaches used mutual learning techniques to benefit older adult participants.

DESIGN

Systematic review following the Preferred Reporting Items for Systematic Reviews 2020 checklist.

DATA SOURCES

PubMed, Embase and Scopus databases were searched for studies from January 2010 to March 2021.

ELIGIBILITY CRITERIA

Inclusion criteria were studies employing codesign approaches to develop an EHTs, and the study population was aged 60 years and older.

DATA EXTRACTION AND SYNTHESIS

Data were extracted for analysis and risk of bias. We evaluated the quality of studies using the Agency for Healthcare Research and Quality Evidence-based Practice Center approach.

RESULTS

Twenty-five studies met the inclusion criteria for this review. All studies used at least two involvement processes, with interviews and prototypes used most frequently. Through cross-classification, we found an increased utilisation of functional prototypes in studies reaching the 'empower' level of participation and found that studies which benefitted from mutual learning had a higher utilisation of specific involvement processes such as focus groups and functional prototyping.

CONCLUSIONS

We found gaps to support which involvement processes, participation levels and learning models should be employed when codesigning with older adults. This is important because higher levels of participation may increase the user's knowledge of technology, enhance learning and empower participants. To ensure studies optimise participation and learning of older adults when developing EHTs, there is a need to place more emphasis on the approaches promoting mutual learning.

PROSPERO REGISTRATION NUMBER

CRD42021240013.

Over-The-Counter Remedies in Older Adults: Patterns of Use, Potential Pitfalls, and Proposed Solutions

Over-the-counter (OTC) products such as pharmaceuticals, dietary supplements, vitamins, and herbal remedies are widely available and copiously used by older adults for health maintenance and symptom management. Owing to physiology, multimorbidity, and polypharmacy, this population is particularly vulnerable to inappropriate use of OTC products, adverse effects, and drug interactions. While OTC pharmaceuticals are bound by FDA-approved standards, dietary supplements are regulated differently, resulting in variable quality and increased possibility for adulteration. Internationally, standards for OTC products vary widely. Accessible educational information, improved provider-patient communication, and revision of regulatory policy could improve safety for older adult users of OTC products.

Utilizing a cognitive engineering approach to conduct a hierarchical task analysis to understand complex older adult decision-making during over-the-counter medication selection

BACKGROUND

Adults aged 65+ (older adults) disproportionately consume 30% of over-the-counter (OTC) medications and are largely responsible for making OTC treatment decisions because providers lack awareness of their consumption. These treatment decisions are complex: older adults must navigate age-related body/cognitive changes, developed comorbidities, and complex medication regimens when selecting the right OTC. Yet little is known about how older adults make such decisions.

OBJECTIVES

This study characterizes older adults' cognitive decision-making process when seeking to self-medicate with OTCs from their community pharmacy, and demonstrates how hierarchical task analysis (HTA) can be used to evaluate a pharmacy intervention's impact on their decision-making.

METHODS

A pre-/post-implementation approach, using a think-aloud interview process, was conducted with older adults within a community pharmacy setting as they completed a hypothetical scenario to treat either pain, sleep, or cough/cold/allergy symptoms. HTA developed a conceptualization of older adult decision-making regarding OTC selection and use before/after Senior Section implementation.

RESULTS

An HTA constructed from 12 purposefully-selected interviews (pre-n = 9/post-n = 3), consisting of 8 goals/15 sub-goals. While selecting an OTC, older adults considered quantity, cost, form, regimen, safety, strength, appropriateness of OTC safety, generic/name-brand, past experiences, and ingredients. The intervention reduced by half the number of factors considered.

IMPLICATIONS

Older adult decision-making is more complex than just selecting OTC medication from a pharmacy shelf. HTA-informed decision profiles can provide pharmacists critical insights into safety issues that older adults may not be considering (e.g., factors related to safety, strength, or appropriateness of OTC for symptoms) so that pharmacists can support their decision-making.

Using change detection to objectively evaluate whether novel over-the-counter drug labels can increase attention to critical health information among older adults

Over-the-counter (OTC) drugs have many benefits but also carry risks, such as adverse drug reactions, which are more prevalent in older adults. Because these products do not require the oversight of a physician or pharmacist, labeling plays a key role in communicating information required for their safe and effective use. Research suggests that current labels are not terribly effective at communicating potential risk. One reason for their lack of effectiveness is that few consumers attend to critical information (active ingredients and warnings) when making purchases. In two experiments, we used a change detection task to objectively evaluate how novel label designs that employ highlighting and a warning label placed on the package’s front impact attention to critical information among older participants (65 and older). The change detection task is a unique form of visual search which allowed us to assess the attentional priority of critical information among participants who were not explicitly instructed to search for this critical information. This unique aspect of the task is important given research suggesting that consumers rarely have the explicit goal of seeking out warnings and active ingredients when making OTC selections. Our results provide empirical support that both highlighting critical information and positioning it on the package’s front increase its attentional prioritization relative to current, commercial practice. Given that attending to the critical information is prerequisite to utilizing that information, strategies that elicit attention in this way are likely to reduce medication errors.

Current Knowledge about Providing Drug-Drug Interaction Services for Patients-A Scoping Review

Drug-drug interactions (DDIs) pose a major problem to patient safety. eHealth solutions have the potential to address this problem and generally improve medication management by providing digital services for health care professionals and patients. Clinical decision support systems (CDSS) to alert physicians or pharmacists about DDIs are common, and there is an extensive body of research about CDSS for professionals. Information about DDIs is commonly requested by patients, but little is known about providing similar support to patients. The aim of this scoping review was to explore and describe current knowledge about providing digital DDI services for patients. Using a broad search strategy and an established framework for scoping reviews, 19 papers were included. The results show that although some patients want to check for DDIs themselves, there are differences between patients, in terms of demands and ability. There are numerous DDI services available, but the existence of large variations regarding service quality implies potential safety issues. The review includes suggestions about design features but also indicates a substantial knowledge gap highlighting the need for further research about how to best design and provide digital DDI to patients without risking patient safety or having other unintended consequences.

Participatory Methods to Engage Health Service Users in the Development of Electronic Health Resources: Systematic Review

Background

When health service providers (HSP) plan to develop electronic health (eHealth) resources for health service users (HSU), the latter’s involvement is essential. Typically, however, HSP, HSU, and technology developers engaged to produce the resources lack expertise in participatory design methodologies suited to the eHealth context. Furthermore, it can be difficult to identify an established method to use, or determine how to work stepwise through any particular process.

Objective

We sought to summarize the evidence about participatory methods and frameworks used to engage HSU in the development of eHealth resources from the beginning of the design process.

Methods

We searched for studies reporting participatory processes in initial development of eHealth resources from 2006 to 2016 in 9 bibliographic databases: MEDLINE, EMBASE, CINAHL, PsycINFO, Emcare, Cochrane Library, Web of Science, ACM Guide to Computing Literature, and IEEE Xplore. From 15,117 records initially screened on title and abstract for relevance to eHealth and early participatory design, 603 studies were assessed for eligibility on full text. The remaining 90 studies were rated by 2 reviewers using the Mixed Methods Appraisal Tool Version 2011 (Pluye et al; MMAT) and analyzed with respect to health area, purpose, technology type, and country of study. The 30 studies scoring 90% or higher on MMAT were included in a detailed qualitative synthesis.

Results

Of the 90 MMAT-rated studies, the highest reported (1) health areas were cancer and mental disorders, (2) eHealth technologies were websites and mobile apps, (3) targeted populations were youth and women, and (4) countries of study were the United States, the United Kingdom, and the Netherlands. Of the top 30 studies the highest reported participatory frameworks were User-Centered Design, Participatory Action Research Framework, and the Center for eHealth Research and Disease Management (CeHRes) Roadmap, and the highest reported model underpinning development and engagement was Social Cognitive Theory. Of the 30 studies, 4 reported on all the 5 stages of the CeHRes Roadmap.

Conclusions

The top 30 studies yielded 24 participatory frameworks. Many studies referred to using participatory design methods without reference to a framework. The application of a structured framework such as the CeHRes Roadmap and a model such as Social Cognitive Theory creates a foundation for a well-designed eHealth initiative that ensures clarity and enables replication across participatory design projects. The framework and model need to be clearly articulated and address issues that include resource availability, responsiveness to change, and the criteria for good practice. This review creates an information resource for future eHealth developers, to guide the design of their eHealth resource with a framework that can support further evaluation and development.

Trial Registration

PROSPERO CRD42017053838; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=53838

User-centred design for developing e-Health system for renal patients at home (AppNephro)

BACKGROUND

Despite the promising benefits of the e-Health approaches (including provide technology-based healthcare services to anyone, anytime, and anywhere), few solutions are adopted in daily practice. User acceptance is one of the major obstacles that hinder the success of technology approaches. End-users often stress misalignments among their problems and the solutions that technology systems aim to solve. In other cases, systems developed are unfriendly or unadjusted to the daily practice of clinicians or patient's life. To maximize user acceptance, the relevance of adopting user-centred design and development techniques is well-known. However, users are often assumed to be a homogeneous group with the same set of requirements, what leads to an ineffective identification and addressment of user requirements. Furthermore, usability and accessibility issues must be carefully addressed to guarantee also the right alignment of solutions with user needs.

OBJECTIVE

to develop an e-Health system for renal patients at home by adopting user-centred design practices, usability and accessibility standards.

MATERIAL AND METHODS

users were categorized in four different groups (i.e., digital patients/caregivers, non-digital patients/caregivers, clinicians and nurses) and a sample was included in the design and development team. Questionnaires and interviews were used to identify user requirements and assess prototypes.

RESULTS

Requirements were considered for every kind of user, what resulted on a multi-faceted e-Health system implying different technologies and functionalities regarding to each target user.

CONCLUSION

Identification and continuous involvement of all kind of users allow their needs to be properly understood and addressed by technology, raising user acceptance of the final product.

Understanding older adults' medication decision making and behavior: A study on over-the-counter (OTC) anticholinergic medications

BACKGROUND

Older adults purchase and use over-the-counter (OTC) medications with potentially significant adverse effects. Some OTC medications, such as those with anticholinergic effects, are relatively contraindicated for use by older adults due to evidence of impaired cognition and other adverse effects.

OBJECTIVE

To inform the design of future OTC medication safety interventions for older adults, this study investigated consumers' decision making and behavior related to OTC medication purchasing and use, with a focus on OTC anticholinergic medications.

METHODS

The study had a cross-sectional design with multiple methods. A total of 84 adults participated in qualitative research interviews (n = 24), in-store shopper observations (n = 39), and laboratory-based simulated OTC shopping tasks (n = 21). Simulated shopping participants also rank-ordered eight factors on their importance for OTC decision making.

RESULTS

Findings revealed that many participants had concerns about medication adverse effects, generally, but were not aware of age-related risk associated with the use of anticholinergic medications. Analyses produced a map of the workflow of OTC-related behavior and decision making as well as related barriers such as difficulty locating medications or comparing them to an alternative. Participants reported effectiveness, adverse effects or health risks, and price as most important to their OTC medication purchase and use decisions. A persona analysis identified two types of consumers: the habit follower, who frequently purchased OTC medications and considered them safe; and the deliberator, who was more likely to weigh their options and consider alternatives to OTC medications.

CONCLUSION

A conceptual model of OTC medication purchase and use is presented. Drawing on study findings and behavioral theories, the model depicts dual processes for OTC medication decision making - habit-based and deliberation-based - as well as the antecedents and consequences of decision making. This model suggests several design directions for consumer-oriented interventions to promote OTC medication safety.