Views of Patients on Using mHealth to Monitor and Prevent Diabetic Foot Ulcers: Qualitative Study

Empowering Foot Care Literacy Among People Living With Diabetes and Their Carers With an mHealth App: Protocol for a Feasibility Study

BACKGROUND

Diabetic foot ulcers (DFUs) cause significant morbidity affecting 19% to 34% of people living with diabetes mellitus. DFUs not only impair quality of life but may also result in limb loss and mortality. Patient education has been advocated to raise awareness of proper foot self-care and the necessity of seeking assistance when a foot wound occurs. Modern technologies, including mobile health (mHealth) interventions such as health apps, bring the potential for more cost-effective and scalable interventions.

OBJECTIVE

This study aims to examine the feasibility and usability of a newly developed mHealth app called Well Feet, which is a diabetes and foot care education app for individuals at risk of developing DFU.

METHODS

Well Feet was developed using an evidence-based and expert panel cocreation approach to deliver educational content available in 3 languages (ie, English, Chinese, and Malay) via animation videos and a range of additional features, including adaptive learning. A nonrandomized, single-arm feasibility study using a mixed methods approach with a series of validated questionnaires and focus group discussions will be conducted. In total, 40 patients and carers will be recruited from a tertiary hospital diabetes clinic to receive a 1-month mHealth intervention. The primary outcomes are the usability of the app and a qualitative perspective on user experience. Secondary outcomes include changes in foot care knowledge, self-management behaviors, and quality of life.

RESULTS

Patient recruitment began in July 2023, and the intervention and data collection will be completed by the end of September 2023. This study has been approved by National Healthcare Group Domain Specific Review Board (2022/00614) on February 10, 2023. The expected results will be published in spring 2024.

CONCLUSIONS

Through this feasibility study, the Well Feet DFU education app will undergo a comprehensive quantitative and qualitative evaluation of its usability and acceptance for future improvement in its design. With local contextualization, cultural adaptation, and its multilingual functionality, the app addresses a critical aspect of DFU health education and self-management in a multiethnic population. Findings from this study will refine and enhance the features of the app based on user feedback and shape the procedural framework for a subsequent randomized controlled trial to assess the effectiveness of Well Feet.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05564728; https://clinicaltrials.gov/study/NCT05564728.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/52036.

Perceptions of Australians with diabetes-related foot disease on requirements for effective secondary prevention

INTRODUCTION

Secondary prevention is essential in reducing recurrence of diabetes-related foot disease (DFD) but is frequently poorly implemented in clinical practice.

OBJECTIVE

To explore the perceptions of people with diabetes-related foot disease (DFD) on their self-perceived knowledge in managing DFD, facilitators and barriers influencing their DFD care, and ideas and preferences for a secondary prevention program.

DESIGN

Sixteen people with a history of DFD from Queensland and Victoria, Australia, underwent semi-structured interviews. Interviews were audio-recorded over telephone and transcribed and analysed following a thematic framework. Participants were asked about their experiences and perceptions relating to DFD and factors influencing the care they receive for DFD relevant to the development of a secondary prevention program for DFD.

FINDINGS AND DISCUSSION

Participants had high self-perceived knowledge in managing DFD, especially in implementing healthy lifestyle changes and conducting daily foot checks and foot care, though most received support from family members acting as carers. However, issues with access and adherence to offloading footwear, and a lack of clear education received on footwear and other aspects of DFD care were perceived as major barriers. Improved patient education, provided in a consistent manner by proactive clinicians was perceived as an essential part of secondary prevention. Telehealth was perceived positively through facilitating faster care and considered a good adjunct to standard care. Health and technological literacy were considered potentially major barriers to the effectiveness of remote care.

CONCLUSION

People with DFD require improved access to offloading footwear and education about secondary prevention, which could be provided by telehealth with adequate support.

Patient Perspectives on the Burden and Prevention of Diabetes-Related Foot Disease

PURPOSE

The purpose of the study was to understand patient perspectives about the impact and prevention of diabetes-related foot disease (DFD).

METHODS

An online survey was distributed to patients with a history of DFD during 2020. The survey was designed alongside clinical specialists and DFD patients and utilized the health belief model. It asked about the impact of DFD on health, perceptions on preventive strategies, perceived need for additional support, and patient preferences for telehealth in DFD management. Quantitative data were summarized descriptively and compared between groups. Open-text responses were analyzed using conceptual content analysis.

RESULTS

Of 80 participants with a history of DFD, foot ulcers were the complication most often experienced, with over two-thirds having been admitted to hospital for a DFD-related issue and over one-third having a DFD-related amputation. Participants had ranging perceptions on the effect of DFD on health, from minimal to crippling. Those with previous severe DFD complications leading to hospital admission found a lack of mobility and independence the consequences of most concern. Using offloading footwear was perceived as very important for preventing DFD complications, although the use of offloading footwear was low, with participants citing issues relating to cost, comfort, appearance, and access to footwear as barriers to better adherence. Perceptions on telehealth were mixed, with many participants not having access to or being comfortable with the use of digital technologies.

CONCLUSIONS

Patients with DFD require additional supports for effective prevention, including offloading footwear.

Self-Monitoring Diabetes-Related Foot Ulcers with the MyFootCare App: A Mixed Methods Study

People with diabetes-related foot ulcers (DFUs) need to perform self-care consistently over many months to promote healing and to mitigate risks of hospitalisation and amputation. However, during that time, improvement in their DFU can be hard to detect. Hence, there is a need for an accessible method to self-monitor DFUs at home. We developed a new mobile phone app, "MyFootCare", to self-monitor DFU healing progression from photos of the foot. The aim of this study is to evaluate the engagement and perceived value of MyFootCare for people with a plantar DFU over 3 months' duration. Data are collected through app log data and semi-structured interviews (weeks 0, 3, and 12) and analysed through descriptive statistics and thematic analysis. Ten out of 12 participants perceive MyFootCare as valuable to monitor progress and to reflect on events that affected self-care, and seven participants see it as potentially valuable to enhance consultations. Three app engagement patterns emerge: continuous, temporary, and failed engagement. These patterns highlight enablers for self-monitoring (such as having MyFootCare installed on the participant's phone) and barriers (such as usability issues and lack of healing progress). We conclude that while many people with DFUs perceive app-based self-monitoring as valuable, actual engagement can be achieved for some but not for all people because of various facilitators and barriers. Further research should target improving usability, accuracy and sharing with healthcare professionals and test clinical outcomes when using the app.

Patients, carers and healthcare providers' perspectives on a patient-owned surveillance system for diabetic foot ulcer care: A qualitative study

Objective

Digital health has recently gained a foothold in monitoring and improving diabetes care. We aim to explore the views of patients, carers and healthcare providers (HCPs) regarding the use of a novel patient-owned wound surveillance application as part of outpatient management of patients with diabetic foot ulcers (DFUs).

Methods

Semi-structured online interviews were conducted with patients, carers and HCPs in wound care for DFUs. The participants were recruited from a primary care polyclinic network and two tertiary hospitals in Singapore, within the same healthcare cluster. Purposive maximum variation sampling was used to select participants with differing attributes to ensure heterogeneity. Common themes relating to the wound imaging app were captured.

Results

A total of 20 patients, 5 carers and 20 HCPs participated in the qualitative study. None of the participants have used a wound imaging app before. Regarding a patient-owned wound surveillance app, all were open and receptive to the system and workflow for use in DFU care. Four major themes emerged from patients and carers: (1) technology, (2) application features and usability, (3) feasibility of using the wound imaging application and (4) logistics of care. Four major themes were identified from HCPs: (1) attitudes towards wound imaging app, (2) preferences regarding functionality, (3) perceived challenges for patients/carers and (4) perceived barriers for HCPs.

Conclusion

Our study highlighted several barriers and facilitators from patients, carers and HCPs regarding the use of a patient-owned wound surveillance app. These findings demonstrate the potential of digital health and areas to improve and tailor a DFU wound app suitable for implementation in the local population.

How patients with diabetic foot ulcers experience telemedicine solutions: A scoping review

Diabetic foot ulcer (DFU) is a common, complex and severe complication of diabetes that is associated with severely decreased health-related quality of life. Treatment of DFUs calls for a multi-sectoral approach, incorporating interdisciplinary care pathways. Telemedicine (TM) may be used as a communication tool between caregivers across healthcare sectors to obligate the need for close follow-up, including early intervention in preventing the recurrence of DFU. The objective of this review was to identify, examine and conceptually map the available literature on patients' experiences and views regarding the use of TM solutions among patients with DFUs. We identified the Population, Concept and Context to pinpoint the focus of this review, word the research question and title as well as facilitate the literature search strategy. The literature examined stems from 13 sources. We imposed no restrictions on the methodological approach of the included studies, neither on the format. During the review process, four main maps emerged: "A whole human not merely a hole in a human," "Less of a burden on the family, the community and the environment," "Competences and continuity of care are essential for high-quality care" and "The quality and modality of the technology." Further investigation from both the patients' and the multi-sectoral caregivers' perspective is needed, focusing on whatever modifications of the TM intervention may fit the DFU care pathway better.

A Review on Newer Interventions for the Prevention of Diabetic Foot Disease

Diabetic foot disease (DFD), which includes ulcers on the foot, infections, and gangrene of the foot, is one of the leading causes of disability worldwide. About half of diabetic foot disease (DFD) patients have a recurrence in less than a year. To alleviate the burden of DFD globally, it is essential to give long-term medication to reduce the likelihood of recurrence. The effectiveness of telemedicine, wearable technologies, and sensors in DFD prevention is discussed in this review. Offloading footwear helps to cure and prevent ulcerated diabetic foot by distributing physical stress away from bony prominences. Sensors and wearables can record the temperatures of the foot, blood pressure (BP), and blood sugar levels and estimate lipid profile. These technologies have offered a practical means of reaching individuals in rural areas with a heightened risk of developing DFD. There is less need for in-person consultations with this strategy. This methodology is simple to operate and lessens reliance on patients. The benefits of adopting these remote monitoring approaches have been demonstrated in some studies with DFD-at-risk individuals. It is required to do more analysis to ascertain the effectiveness and value of incorporating different remote monitoring systems as part of an all-encompassing strategy to prevent DFD.

The patient's perspective of diabetic foot ulceration: A phenomenological exploration of causes, detection and care seeking

AIMS

Diabetic foot ulceration can contribute to lowered life expectancy and quality of life for people with diabetes, and yet, scant attention has been given to improving preventive and educational measures. This article uses a phenomenological approach to explore individuals' lived experiences of diabetic foot ulcerations to explore factors that can be harnessed to achieve improved outcomes.

DESIGN

This was a qualitative study using semi-structured interviews grounded in a phenomenological framework to explore how patients perceive and understand their foot problems.

METHODS

Study participants were recruited from February 2020 to February 2021 from a tertiary referral centre that treats foot problems in persons with diabetes. A total of 15 Hispanic, Native American and White patients participated in the study. We conducted in-depth semi-structured interviews which were audio recorded with the participant's consent. Interview data were transcribed and analysed with Dedoose data management software.

RESULTS

Analysis revealed findings in two primary domains: (1) how patients perceive foot ulceration, with themes around limited understandings of foot ulceration, close sensory observation of foot problems and barriers to ulcer perception and (2) how patients experience the timing of foot ulceration, with themes on how time perceptions shifted as foot problems became more serious, which correlated closely to how patients responded to their foot problems.

CONCLUSION

Despite the close sensory observation of their feet, people with diabetes face an array of barriers to recognizing and understanding the implications of diabetic foot ulceration, which can lead to delayed care seeking. Nurses can play a critical role in promoting patient education and improving patient self-management of foot ulcers.

IMPACT

This phenomenological study offers important lessons to guide nurses and other providers in enhancing patient self-management of DFUs and improving care outcomes by expanding an understanding of DFU early warning signs, the imperative to seek medical care quickly, and addressing possible barriers.

PATIENTS' AND PHYSICIANS' PERSPECTIVES ABOUT USING HEALTH INFORMATION TECHNOLOGY IN DIABETES MANAGEMENT IN IRAN: A QUALITATIVE STUDY

Introduction

Diabetes mellitus is known as a major chronic disease that has a number of consequences affecting individuals' health conditions and socioeconomic aspects of life. These challenges require innovative interventions, such as self-management to improve patients' health condition and reduce the economic burden of healthcare systems. The current research aimed to identify patients' and physicians' perspectives about the use of health information technology in diabetes management in Iran.

Methods

This was a qualitative study conducted in 2019. In order to collect data, semi-structured interviews were conducted with eight patients and 10 specialists in an endocrine and metabolism research center and in a teaching hospital. The interviews were digitally recorded and transcribed verbatim. Finally, data were analyzed by using framework analysis method and MAXQDA version 10.

Results

According to the results, both patients and physicians believed that while using health information technology can improve access to healthcare services, the high cost of technology may hinder its usage. Factors such as government and health system support can motivate users to use the technology, and factors such as lack of user training and technical problems may have a negative impact on technology usage.

Conclusion

As a number of motivational and inhibitory factors may influence the use of health information technology in diabetes management, it is imperative to take each of these factors into account before designing and implementing new technologies, especially for diabetes management.

Perceptions on mobile health use for health education in an Indigenous population

Introduction

Indigenous peoples in Canada face numerous health needs and challenges and often have poor health status due to inequitable access to care. Providing culturally appropriate support for health conditions, particularly chronic conditions that require self-management, can assist in averting complications and morbidity. Mobile health is a useful medium for delivering health education across different populations. However, meaningful user involvement is necessary because mobile health interventions suitable for one population may not be appropriate for another. Indigenous people’s views will inform the use of mobile health interventions in Indigenous communities.

Objective

The study explored the perception of Indigenous women on using mobile health as a tool for receiving health information.

Methods

This was a qualitative study, and participants comprised of 22 Indigenous women (First Nations and Métis) with or at risk of diabetes, aged 18–69 years in Saskatoon, Canada. After 12 weeks of disseminating diabetic eye care information via text messaging, data were collected via sharing circle discussions and analyzed using thematic analysis.

Results

Participants indicated that the nature of messages such as the use of Indigenous languages, the message content, frequency of messages, group activities, and delivery formats such as voice messages, mobile applications, Internet, two-way messaging, and text messages were essential considerations in using mobile health as a tool for receiving health information.

Conclusion

Different factors need to be considered in using mobile health as a tool for health education among Indigenous peoples. These factors could be applicable in implementing mobile health solutions in other populations for the management of health conditions.

The Costs and Cardiovascular Benefits in Patients With Peripheral Artery Disease From a Fourth-Generation Synchronous Telehealth Program: Retrospective Cohort Study

BACKGROUND

Patients with peripheral artery disease (PAD) are at high risk for major cardiovascular events, including myocardial infarction, stroke, and hospitalization for heart failure. We have previously shown the clinical efficacy of a fourth-generation synchronous telehealth program for some patients, but the costs and cardiovascular benefits of the program for PAD patients remain unknown.

OBJECTIVE

The telehealth program is now widely used by higher-risk cardiovascular patients to prevent further cardiovascular events. This study investigated whether patients with PAD would also have better cardiovascular outcomes after participating in the fourth-generation synchronous telehealth program.

METHODS

This was a retrospective cohort study. We screened 5062 patients with cardiovascular diseases who were treated at National Taiwan University Hospital and then enrolled 391 patients with a diagnosis of PAD. Of these patients, 162 took part in the telehealth program, while 229 did not and thus served as control patients. Inverse probability of treatment weighting (IPTW) based on the propensity score was used to mitigate possible selection bias. Follow-up outcomes included heart failure hospitalization, acute coronary syndrome, stroke, and all-cause readmission during the 1-year follow-up period and through the last follow-up.

RESULTS

The mean follow-up duration was 3.1 (SD 1.8) years for the patients who participated in the telehealth program and 3.2 (SD 1.8) for the control group. The telehealth program patients exhibited lower risk of ischemic stroke than did the control group in the first year after IPTW (0.9% vs 3.5%; hazard ratio [HR] 0.24; 95% CI 0.07-0.80). The 1-year composite endpoint of vascular accident, including acute coronary syndrome and stroke, was also significantly lower in the telehealth program group after IPTW (2.4% vs 5.2%; HR 0.46; 95% CI 0.21-0.997). At the end of the follow-up, the telehealth program group continued to exhibit a significantly lower rate of ischemic stroke than did the control group after IPTW (0.9% vs 3.5%; HR 0.52, 95% CI 0.28-0.93). Furthermore, the medical costs of the telehealth program patients were not higher than those of the control group, whether in terms of outpatient, emergency department, hospitalization, or total costs.

CONCLUSIONS

The PAD patients who participated in the fourth-generation synchronous telehealth program exhibited lower risk of ischemic stroke events over both mid- and long-term follow-up periods. However, larger-scale and prospective randomized clinical trials are needed to confirm our findings.

Mobile Health-Based Thermometer for Monitoring Wound Healing After Endovascular Therapy in Patients With Chronic Foot Ulcer: Prospective Cohort Study

BACKGROUND

Foot temperature may increase after endovascular therapy, but the relationship between foot temperature and wound healing is unclear.

OBJECTIVE

This study was performed to evaluate the feasibility of a mobile health (mHealth)-based thermometer for foot temperature monitoring in patients with chronic foot ulcer before and after endovascular therapy and to determine the association between temperature change and wound healing time.

METHODS

This was a prospective cohort study. Patients who had a chronic foot ulcer (>3 months) and underwent endovascular therapy between June 2019 and December 2019 were included. The participants received standard medical care and endovascular therapy for revascularization. The mHealth-based thermometer, composed of 4 temperature-sensing chips, was put on the foot before and after endovascular therapy. Data from the chips were transferred to an associated mobile phone app via Bluetooth. Wound healing time was estimated using the Kaplan-Meier method, and the associations between baseline characteristics and clinical outcomes were evaluated using a Cox proportional hazard model.

RESULTS

A total of 163 patients with chronic foot ulcer who underwent endovascular therapy were enrolled and followed up until wound healing was complete or for 180 days. The mean foot temperature before endovascular therapy was 30.6 (SD 2.8 °C). Foot temperature increased significantly (mean 32.1 °C, SD 2.8 °C; P=.01) after the procedure. Wound healing time was significantly different in the Kaplan-Meier curves of the patient group with temperature changes ≥2 °C and the group with temperature changes ≤2 °C (log-rank P<.001). A foot temperature increase ≥2 °C after endovascular therapy was associated with increased wound healing in univariate analysis (hazard ratio [HR] 1.78, 95% CI 1.24-2.76, P=.02), and the association remained significant in multivariate analysis (HR 1.69, 95% CI 1.21-2.67, P=.03).

CONCLUSIONS

The mHealth-based thermometer was feasible and useful for foot temperature monitoring, which may provide health care professionals with a new endpoint for endovascular therapy. Foot temperature increases ≥2 °C after endovascular therapy were associated with faster wound healing in patients with chronic foot ulcer. Further studies are needed, however, to confirm these findings.

Health Information Technology and Diabetes Management: A Review of Motivational and Inhibitory Factors

BACKGROUND

Health information technology helps patients to take better care of themselves and improves health status of patients with chronic diseases, such as diabetes.

OBJECTIVE

This study aimed to identify factors influencing the use of health information technology in diabetes management.

METHODS

This was a review study conducted in 2019. To obtain the related articles, databases, including Scopus, Web of Science, Proquest, and PubMed, were searched and the time frame was between 2010 and 2018. Initially, 1159 articles were retrieved and after screening, 28 articles were selected to be included in the study.

RESULTS

Factors influencing the use of health information technology in diabetes management could be divided into the motivational and inhibitory factors, and each of them could be categorized into five groups of organizational, technical, economic, individual, and ethical/legal factors. The motivational factors included training, system ease of use, economic support, having computer literacy, and maintaining privacy and confidentiality. The inhibitory factors included a lack of long-term planning, technical problems, inadequate financial resources, old age, and concerns over confidentiality issues.

CONCLUSION

Identifying motivational and inhibitory factors can help to make better use of technology for diabetes management. This approach, in turn, can improve the acceptability of the technology and save cost, reduce long-term complications of diabetes, and improve the quality of life in diabetic patients.

Foot thermometry with mHeath-based supplementation to prevent diabetic foot ulcers: A randomized controlled trial

Background: Novel approaches to reduce diabetic foot ulcers (DFU) in low- and middle-income countries are needed. Our objective was to compare incidence of DFUs in the thermometry plus mobile health (mHealth) reminders (intervention) vs. thermometry-only (control). Methods: We conducted a randomized trial enrolling adults with type 2 diabetes mellitus at risk of foot ulcers (risk groups 2 or 3) but without foot ulcers at the time of recruitment, and allocating them to control (instruction to use a liquid crystal-based foot thermometer daily) or intervention (same instruction supplemented with text and voice messages with reminders to use the device and messages to promote foot care) groups, and followed for 18 months. The primary outcome was time to occurrence of DFU. A process evaluation was also conducted. Results: A total of 172 patients (63% women, mean age 61 years) were enrolled; 86 to each study group. More patients enrolled in the intervention arm had a history of previous DFU (66% vs. 48%). Follow-up for the primary endpoint was complete for 158 of 172 participants (92%). Adherence to ≥80% of daily temperature measurements was 87% (103 of 118) among the study participants who returned the logbook. DFU cumulative incidence was 24% (19 of 79) in the intervention arm and 11% (9 of 79) in the control arm. After adjusting for history of foot ulceration and study site, the hazard ratio (HR) for DFU was 1.44 (95% CI 0.65, 3.22). Conclusions: In our study, conducted in a low-income setting, the addition of mHealth to foot thermometry was not effective in reducing foot ulceration. Importantly, there was a higher rate of previous DFU in the intervention group, the adherence to thermometry was high, and the expected rates of DFU used in our sample size calculations were not met. Trial registration: ClinicalTrials.gov NCT02373592 (27/02/2015).

Armstrong D. The Potential Role of Sensors, Wearables and Telehealth in the Remote Management of Diabetes-Related Foot Disease

Diabetes-related foot disease (DFD), which includes foot ulcers, infection and gangrene, is a leading cause of the global disability burden. About half of people who develop DFD experience a recurrence within one year. Long-term medical management to reduce the risk of recurrence is therefore important to reduce the global DFD burden. This review describes research assessing the value of sensors, wearables and telehealth in preventing DFD. Sensors and wearables have been developed to monitor foot temperature, plantar pressures, glucose, blood pressure and lipids. The monitoring of these risk factors along with telehealth consultations has promise as a method for remotely managing people who are at risk of DFD. This approach can potentially avoid or reduce the need for face-to-face consultations. Home foot temperature monitoring, continuous glucose monitoring and telehealth consultations are the approaches for which the most highly developed and user-friendly technology has been developed. A number of clinical studies in people at risk of DFD have demonstrated benefits when using one of these remote monitoring methods. Further development and evidence are needed for some of the other approaches, such as home plantar pressure and footwear adherence monitoring. As yet, no composite remote management program incorporating remote monitoring and the management of all the key risk factors for DFD has been developed and implemented. Further research assessing the feasibility and value of combining these remote monitoring approaches as a holistic way of preventing DFD is needed.

Facilitators and barriers of using digital technology for the management of diabetic foot ulcers: A qualitative systematic review

The use of digital technology has been shown to be effective in managing chronic conditions. Telemedicine and mobile application are two common applications of digital technology in managing diabetic foot ulcers (DFU). The facilitators and barriers of using it for DFU management are yet to be explored. This is a qualitative systematic review. Five bibliography databases and grey literature sources were searched (2000‐2019). Two reviewers independently screened the citations, extracted the data, assessed the quality of the included studies, and performed thematic synthesis. Three studies on patients and five studies on healthcare practitioners (HCPs) were included. Two studies focused on the use of mobile applications and six on telemedicine. In studies on patients, four analytical themes were generated: the relationships with HCPs; the attitude towards the usage of digital technology; the role of wound image taking; and impact of digital technology on DFU care, encompassing 15 facilitators (eg, enabling community support, improving wound care knowledge) and 12 barriers (eg, lack of technological savviness, difficulty reading on smartphones). Three analytical themes were generated from studies on HCPs: the impact of digital technology on HCPs; the role of digital technology in DFU care; and organisation of DFU care delivery, encompassing 17 facilitators (eg, adequate wound care training, digital technology enables holistic care) and 16 barriers (eg, lack of multidisciplinary approach in caring for DFU, lack of direct contact in care provision). Patients and HCPs reported various barriers and facilitators relating to different aspects of using digital technology in DFU management. Our findings can help inform future research as well as the adoption of digital technology in DFU management.

Foot thermometry with mHeath-based supplementation to prevent diabetic foot ulcers: A randomized controlled trial

Background: Three previous clinical trials have found that thermometry use reduced diabetic foot ulcers (DFUs) incidence four- to ten-fold among individuals with diabetes at high-risk of developing a DFU. However, these benefits depend on patient adherence to self-assessment. Therefore, novel approaches to improve self-management thermometry adherence are needed. Our objective was to compare incidence of DFUs in the thermometry plus mobile health (mHealth) reminders intervention arm vs. thermometry-only control arm. Methods: We conducted a randomized trial, enrolling adults with type 2 diabetes mellitus at risk of foot ulcers (risk groups 2 or 3) but without foot ulcers at the time of recruitment and allocating them to control (instruction to use a liquid crystal-based foot thermometer daily) or intervention (same instruction supplemented with text and voice messages with reminders to use the device and messages to promote foot care) groups and followed for 18 months. The primary outcome was time to occurrence of DFU. A process evaluation was also conducted. Results: A total of 172 patients (63% women, mean age 61 years) were enrolled; 86 to each study group. More patients enrolled in the intervention arm had a history of DFU (66% vs. 48%). Follow-up for the primary endpoint was complete for 158 of 172 participants (92%). DFU cumulative incidence was 24% (19 of 79) in the intervention arm and 11% (9 of 79) in the control arm. After adjusting for history of foot ulceration and study site, the Hazard Ratio (HR) for DFU was 1.44 (95% CI 0.65, 3.22). Adherence to ≥80% of daily temperature measurements was 87% (103 of 118) among the study participants who returned the logbook, with no difference between the intervention and control arms. Conclusions: This trial contributes to the evidence about the value of mHealth in preventing diabetes foot ulcers. Trial registration: ClinicalTrials.gov NCT02373592 (27/02/2015).

mHealth Apps as Effective Persuasive Health Technology: Contextualizing the "Necessary" Functionalities

Persuasive health technology (PHT) is any technology purposely designed to influence, reinforce, change, or shape health-related attitudes or behaviors. Behavioral interventions can be developed for the purpose of maintaining or improving a person's health status. Delivering behavioral interventions via PHTs is a promising approach for encouraging healthy behaviors among individuals and populations. Important attributes of all PHTs include their functionalities. A functionality refers to any useful features, functions, capabilities, or technologies associated with computer hardware or software. Creating effective PHTs requires a deliberate selection of appropriate functionalities for supporting specific behavioral interventions. The number and types of functionalities necessary to create an effective PHT will be specific to the context of each project, influenced by project objectives, stakeholder goals, behavioral interventions, and a variety of real-world constraints. Selecting appropriate functionalities can be challenging. Fortunately, there are frameworks and models developed specifically for guiding the design of PHTs. The Persuasive Systems Design model describes 4 categories, and 28 design principles for creating effective persuasive interventions. These same design principles could also be useful for guiding the selection of appropriate functionalities.

Work ability and productivity in patients with diabetic foot

OBJECTIVE

To assess work ability and productivity in patients with diabetic foot.

METHODS

This investigation was a cross-sectional controlled study. A total of 117 individuals were selected from March to June 2014 and allocated to group A (patients without diabetes, n=43), group B (diabetes patients without foot ulcers, n=43), or group C (patients with diabetic foot, n=31). Two validated instruments, the Work Limitations Questionnaire (WLQ) and the Work Productivity and Activity Impairment Questionnaire General Health v2.0 (WPAI-GH), were used to assess work ability and productivity.

RESULTS

The groups were homogeneous regarding age and sex; however, patients in group C had a lower education level than the other participants (p=0.006). The median WLQ scores for groups A, B, and C were 0.0121, 0.0146, and 0.0852, respectively (p<0.0001). The WPAI-GH scores revealed a mean productivity loss of 20% for groups A and B and 100% for group C (p<0.0001).

CONCLUSIONS

Patients with diabetic foot showed decreased work ability and productivity.

Promoting Self-Care of Diabetic Foot Ulcers Through a Mobile Phone App: User-Centered Design and Evaluation

Background

Without effective self-care, people with diabetic foot ulcers (DFUs) are at risk of prolonged healing times, hospitalization, amputation, and reduced quality of life. Despite these consequences, adherence to DFU self-care remains low. New strategies are needed to engage people in the self-care of their DFUs.

Objective

This study aimed to evaluate the usability and potential usefulness of a new mobile phone app to engage people with DFUs in self-care.

Methods

We developed a new mobile phone app, MyFootCare, to engage people with DFUs through goals, progress monitoring, and reminders in self-care. Key features included novel visual analytics that automatically extract and monitor DFU size information from mobile phone photos of the foot. A functional prototype of MyFootCare was created and evaluated through a user-centered design process with 11 participants with DFUs. Data were collected through semistructured interviews discussing existing self-care practices and observations of MyFootCare with participants. Data were analyzed qualitatively through thematic analysis.

Results

Key themes were as follows: (1) participants already used mobile phone photos to monitor their DFU progress; (2) participants had limited experience with using mobile phone apps; (3) participants desired the objective DFU size data provided by the tracking feature of MyFootCare to monitor their DFU progress; (4) participants were ambivalent about the MyFootCare goal image and diary features, commenting that these features were useful but also that it was unlikely that they would use them; and (5) participants desired to share their MyFootCare data with their clinicians to demonstrate engagement in self-care and to reflect on their progress.

Conclusions

MyFootCare shows promising features to engage people in DFU self-care. Most notably, ulcer size data are useful to monitor progress and engage people. However, more work is needed to improve the usability and accuracy of MyFootCare, that is, by refining the process of taking and analyzing photos of DFUs and removing unnecessary features. These findings open the door for further work to develop a system that is easy to use and functions in everyday life conditions and to test it with people with DFUs and their carers.