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Nelson LA, Spieker AJ, LeStourgeon LM, Greevy Jr RA, Molli S, Roddy MK, Mayberry LS. The Goldilocks Dilemma on Balancing User Response and Reflection in mHealth Interventions: Observational Study. JMIR Mhealth Uhealth 2024; 12:e47632. [PMID: 38297891 PMCID: PMC10850735 DOI: 10.2196/47632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 02/02/2024] Open
Abstract
Background Mobile health (mHealth) has the potential to radically improve health behaviors and quality of life; however, there are still key gaps in understanding how to optimize mHealth engagement. Most engagement research reports only on system use without consideration of whether the user is reflecting on the content cognitively. Although interactions with mHealth are critical, cognitive investment may also be important for meaningful behavior change. Notably, content that is designed to request too much reflection could result in users' disengagement. Understanding how to strike the balance between response burden and reflection burden has critical implications for achieving effective engagement to impact intended outcomes. Objective In this observational study, we sought to understand the interplay between response burden and reflection burden and how they impact mHealth engagement. Specifically, we explored how varying the response and reflection burdens of mHealth content would impact users' text message response rates in an mHealth intervention. Methods We recruited support persons of people with diabetes for a randomized controlled trial that evaluated an mHealth intervention for diabetes management. Support person participants assigned to the intervention (n=148) completed a survey and received text messages for 9 months. During the 2-year randomized controlled trial, we sent 4 versions of a weekly, two-way text message that varied in both reflection burden (level of cognitive reflection requested relative to that of other messages) and response burden (level of information requested for the response relative to that of other messages). We quantified engagement by using participant-level response rates. We compared the odds of responding to each text and used Poisson regression to estimate associations between participant characteristics and response rates. Results The texts requesting the most reflection had the lowest response rates regardless of response burden (high reflection and low response burdens: median 10%, IQR 0%-40%; high reflection and high response burdens: median 23%, IQR 0%-51%). The response rate was highest for the text requesting the least reflection (low reflection and low response burdens: median 90%, IQR 61%-100%) yet still relatively high for the text requesting medium reflection (medium reflection and low response burdens: median 75%, IQR 38%-96%). Lower odds of responding were associated with higher reflection burden (P<.001). Younger participants and participants who had a lower socioeconomic status had lower response rates to texts with more reflection burden, relative to those of their counterparts (all P values were <.05). Conclusions As reflection burden increased, engagement decreased, and we found more disparities in engagement across participants' characteristics. Content encouraging moderate levels of reflection may be ideal for achieving both cognitive investment and system use. Our findings provide insights into mHealth design and the optimization of both engagement and effectiveness.
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Affiliation(s)
- Lyndsay A Nelson
- Department of Medicine, Vanderbilt University Medical Center, NashvilleTN, United States
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, NashvilleTN, United States
| | - Andrew J Spieker
- Department of Biostatistics, Vanderbilt University Medical Center, NashvilleTN, United States
| | - Lauren M LeStourgeon
- Department of Medicine, Vanderbilt University Medical Center, NashvilleTN, United States
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, NashvilleTN, United States
| | - Robert A Greevy Jr
- Department of Biostatistics, Vanderbilt University Medical Center, NashvilleTN, United States
| | - Samuel Molli
- Department of Medicine, Vanderbilt University Medical Center, NashvilleTN, United States
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, NashvilleTN, United States
| | - McKenzie K Roddy
- Department of Medicine, Vanderbilt University Medical Center, NashvilleTN, United States
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, NashvilleTN, United States
| | - Lindsay S Mayberry
- Department of Medicine, Vanderbilt University Medical Center, NashvilleTN, United States
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, NashvilleTN, United States
- Department of Biomedical Informatics, Vanderbilt University Medical Center, NashvilleTN, United States
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Gurcay B, Yilmaz FT, Bilgin A. The Effectiveness of Telehealth Interventions on Medication Adherence Among Patients with Type 2 Diabetes: A Meta-Analysis. Telemed J E Health 2024; 30:3-20. [PMID: 37219578 DOI: 10.1089/tmj.2023.0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023] Open
Abstract
Objective: Diabetes mellitus (DM) is a global health issue with an increasing frequency across the world and is an important disease in which medication adherence is a priority component for disease management. Several interventions are implemented to increase medication adherence in patients with type 2 DM, and telehealth interventions have become widespread thanks to technological advancements. This meta-analysis aims at reviewing the telehealth interventions applied to patients with type 2 DM and examining their effects on medication adherence. Methods: Relevant studies published in ScienceDirect, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL) and PubMed from 2000 to December 2022 were searched in this meta-analysis. Their methodological quality was assessed using the Modified Jadad scale. Total score for each study ranged from 0 (low quality) to 8 (high quality). Studies with four or more were of good quality. Standardized mean difference (SMD) and 95% confidence intervals (CI) were used for statistical analysis. Publication bias was assessed using the funnel plot and Egger regression test. Both subgroup analysis and meta-regression analysis were performed in the study. Results: A total of 18 studies were analyzed in this meta-analysis. All studies scored 4 or above in their methodological quality assessment and were of good quality. The combined results have shown that telehealth interventions significantly increased medication adherence in the intervention group (SMD = 0.501; 95% CI 0.231-0.771; Z = 3.63, p < 0.001). Our subgroup analysis has revealed that HbA1c value, mean age, and duration of intervention significantly affected the study results. Conclusion: Telehealth interventions are an effective method to increase medication adherence in patients with type 2 DM. It is recommended that telehealth interventions be expanded in clinical practices and included in disease management.
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Affiliation(s)
- Busra Gurcay
- Faculty of Health Sciences, Sakarya University of Applied Sciences, Sakarya, Turkey
| | - Feride Taskin Yilmaz
- Faculty of Health Sciences, Sakarya University of Applied Sciences, Sakarya, Turkey
| | - Aylin Bilgin
- Faculty of Health Sciences, Sakarya University of Applied Sciences, Sakarya, Turkey
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Mbotwa CH, Kazaura MR, Moen K, Leshabari MT, Metta E, Mmbaga EJ. Retention in an mHealth App Aiming to Promote the Use of HIV Pre-Exposure Prophylaxis Among Female Sex Workers in Dar es Salaam, Tanzania: Prospective Cohort Study. JMIR Mhealth Uhealth 2023; 11:e46853. [PMID: 37855221 PMCID: PMC10595516 DOI: 10.2196/46853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/17/2023] [Accepted: 08/04/2023] [Indexed: 10/20/2023] Open
Abstract
Background Increasing access to smartphones in sub-Saharan Africa offers an opportunity to leverage mobile health (mHealth) technology to improve access to health care in underserved populations. In the domain of HIV prevention, mHealth interventions can potentially contribute to solving the challenges of suboptimal adherence to pre-exposure prophylaxis (PrEP) and low retention in PrEP services among populations most vulnerable to HIV acquisition. However, there is a gap in the knowledge about the use of such interventions in sub-Saharan Africa. Objective This study aims to evaluate the extent and predictors of retention in an mHealth app (Jichunge) that aims to promote adherence to PrEP and retention in PrEP care among female sex workers in Dar es Salaam, Tanzania. Methods A prospective cohort of female sex workers residing in Dar es Salaam were recruited, using respondent-driven sampling. All participants were provided with the Jichunge app as they started PrEP. A questionnaire was used to collect data on sociodemographics and other structural factors, while app use data for the 60-day period following the first 150 days of being in the intervention arm were extracted from the app's back end. A multivariable log-binomial model was used to determine predictors of 6-month retention in the Jichunge app. Results A total of 470 female sex workers were recruited. Nearly three-quarters of participants (206/284, 72.5%) who came to the 6-month follow-up interview no longer had the Jichunge app on their phones. The majority of these participants (193/206, 93.7%) no longer had access to the app because of issues related to their phones. Data extracted from the back end of the app showed that the use of the app declined over time, and only 13.4% (63/470) of the participants were retained (continued to use the app) after 6 months of intervention. At 6 months, women aged ≥35 years were >2 times more likely to use the app than women aged 18 to 24 years (adjusted risk ratio [aRR] 2.2, 95% CI 1.2-4.1; P=.01). Furthermore, retention in the app was higher among participants who demonstrated high PrEP awareness at baseline (aRR 1.8, 95% CI 1.1-3; P=.01) and among those who had experienced financial difficulties due to health care spending (aRR 1.9, 95% CI 1.2-3.2; P=.01). Conclusions Most female sex workers (206/284, 72.5%) who were enrolled in PrEP care in Tanzania no longer used the Jichunge app after 6 months. Retention in the app at 6 months was predicted by older age, high PrEP awareness, and financial difficulties due to health care spending. Strategies for the long-term retention of participants in mHealth apps, such as systems for reinstallations of apps, should be considered during the design phase.
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Affiliation(s)
- Christopher H Mbotwa
- Department of Epidemiology and Biostatistics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania
- Mbeya College of Health and Allied Sciences, University of Dar es Salaam, Mbeya, United Republic of Tanzania
| | - Method R Kazaura
- Department of Epidemiology and Biostatistics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania
| | - Kåre Moen
- Department of Community Medicine and Global Health, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Melkizedeck T Leshabari
- Department of Behavioural sciences, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania
| | - Emmy Metta
- Department of Behavioural sciences, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania
| | - Elia J Mmbaga
- Department of Epidemiology and Biostatistics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania
- Department of Community Medicine and Global Health, Faculty of Medicine, University of Oslo, Oslo, Norway
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Wang R, Rouleau G, Booth GL, Brazeau AS, El-Dassouki N, Taylor M, Cafazzo JA, Greenberg M, Nakhla M, Shulman R, Desveaux L. Understanding Whether and How a Digital Health Intervention Improves Transition Care for Emerging Adults Living With Type 1 Diabetes: Protocol for a Mixed Methods Realist Evaluation. JMIR Res Protoc 2023; 12:e46115. [PMID: 37703070 PMCID: PMC10534286 DOI: 10.2196/46115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/27/2023] [Accepted: 07/24/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Emerging adults living with type 1 diabetes (T1D) face a series of challenges with self-management and decreased health system engagement, leading to an increased risk of acute complications and hospital admissions. Effective and scalable strategies are needed to support this population to transfer seamlessly from pediatric to adult care with sufficient self-management capability. While digital health interventions for T1D self-management are a promising strategy, it remains unclear which elements work, how, and for which groups of individuals. OBJECTIVE This study aims to evaluate the design and implementation of a multicomponent SMS text message-based digital health intervention to support emerging adults living with T1D in real-world settings. The objectives are to identify the intervention components and associated mechanisms that support user engagement and T1D health care transition experiences and determine the individual characteristics that influence the implementation process. METHODS We used a realist evaluation embedded alongside a randomized controlled trial, which uses a sequential mixed methods design to analyze data from multiple sources, including intervention usage data, patient-reported outcomes, and realist interviews. In step 1, we conducted a document analysis to develop a program theory that outlines the hypothesized relationships among "individual-level contextual factors, intervention components and features, mechanisms, and outcomes," with special attention paid to user engagement. Among them, intervention components and features depict 10 core characteristics such as transition support information, problem-solving information, and real-time interactivity. The proximal outcomes of interest include user engagement, self-efficacy, and negative emotions, whereas the distal outcomes of interest include transition readiness, self-blood glucose monitoring behaviors, and blood glucose. In step 2, we plan to conduct semistructured realist interviews with the randomized controlled trial's intervention-arm participants to test the hypothesized "context-intervention-mechanism-outcome" configurations. In step 3, we plan to triangulate all sources of data using a coincidence analysis to identify the necessary combinations of factors that determine whether and how the desired outcomes are achieved and use these insights to consolidate the program theory. RESULTS For step 1 analysis, we have developed the initial program theory and the corresponding data collection plan. For step 2 analysis, participant enrollment for the randomized controlled trial started in January 2023. Participant enrollment for this realist evaluation was anticipated to start in July 2023 and continue until we reached thematic saturation or achieved informational power. CONCLUSIONS Beyond contributing to knowledge on the multiple pathways that lead to successful engagement with a digital health intervention as well as target outcomes in T1D care transitions, embedding the realist evaluation alongside the trial may inform real-time intervention refinement to improve user engagement and transition experiences. The knowledge gained from this study may inform the design, implementation, and evaluation of future digital health interventions that aim to improve transition experiences. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/46115.
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Affiliation(s)
- Ruoxi Wang
- Institute for Better Health, Trillium Health Partners, Mississauga, ON, Canada
| | - Geneviève Rouleau
- Institute for Health System Solutions and Virtual Care, Women's College Hospital, Toronto, ON, Canada
- Département des Sciences Infirmières, Université du Québec en Outaouais, St-Jérôme, QC, Canada
- Faculté des sciences infirmières, l'Université de Montréal, Montreal, QC, Canada
| | - Gillian Lynn Booth
- MAP Centre for Urban Health Solutions, Unity Health Toronto, Toronto, ON, Canada
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | | | - Noor El-Dassouki
- Centre for Digital Therapeutics, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Madison Taylor
- Centre for Digital Therapeutics, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Joseph A Cafazzo
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
- Centre for Digital Therapeutics, Toronto General Hospital, University Health Network, Toronto, ON, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
| | - Marley Greenberg
- Department of Philosophy, Joint Centre for Bioethics, University of Toronto, Toronto, ON, Canada
- Diabetes Action Canada, Toronto, ON, Canada
| | - Meranda Nakhla
- Division of Endocrinology, Montreal Children's Hospital, McGill University, Montréal, QC, Canada
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Rayzel Shulman
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, Toronto, ON, Canada
- Division of Endocrinology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Laura Desveaux
- Institute for Better Health, Trillium Health Partners, Mississauga, ON, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
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Nunes LB, Santos JCD, Reis IA, Torres HDC. [Evaluation of the behavioral program in type 2 diabetes mellitus: a randomized clinical trial]. CIENCIA & SAUDE COLETIVA 2023; 28:851-862. [PMID: 36888868 DOI: 10.1590/1413-81232023283.10102022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 09/12/2022] [Indexed: 03/08/2023] Open
Abstract
The scope of this article was to evaluate the effect of the behavioral group education program and telephone intervention in modifying psychological attitudes, enhancing empowerment, and self-care practices aimed at improving clinical control in type 2 diabetes mellitus. It involved a randomized cluster clinical trial, carried out with 199 people with diabetes. In order to perform intragroup comparisons (final and initial phases) and between groups with respect to the indices of the psychological attitude, empowerment, self-care and glycated hemoglobin level variables, the Generalizing Estimating Equation (GEE) approach was used. In all analyses, a 5% significance level and 95% confidence interval were used. When compared to the CG, the IG showed a significant reduction in the mean values of glycated hemoglobin (95%CI: -1.49 to -0.45), a statistically significant increase in the change in psychological attitude scores (95%CI: 9.70 to 15.40), on the empowerment scale (95%CI: 0.81 to 2.72) and adherence to self-care practices (95%CI: 1.44 to 2.10) at the end of the study. The behavioral program proved to be capable of modifying psychological attitudes, improving empowerment, self-care practices and clinical control.
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Affiliation(s)
- Laura Barbosa Nunes
- Escola de Enfermagem, Universidade Federal de Minas Gerais. Av. Prof. Alfredo Balena 190, Santa Efigênia. 30130-100 Belo Horizonte MG Brasil.
| | - Jéssica Caroline Dos Santos
- Escola de Enfermagem, Universidade Federal de Minas Gerais. Av. Prof. Alfredo Balena 190, Santa Efigênia. 30130-100 Belo Horizonte MG Brasil.
| | - Ilka Afonso Reis
- Escola de Enfermagem, Universidade Federal de Minas Gerais. Av. Prof. Alfredo Balena 190, Santa Efigênia. 30130-100 Belo Horizonte MG Brasil.
| | - Heloísa de Carvalho Torres
- Escola de Enfermagem, Universidade Federal de Minas Gerais. Av. Prof. Alfredo Balena 190, Santa Efigênia. 30130-100 Belo Horizonte MG Brasil.
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Kruse CS, Mileski M, Heinemann K, Huynh H, Leafblad A, Moreno E. Analyzing the Effectiveness of mHealth to Manage Diabetes Mellitus Among Adults Over 50: A Systematic Literature Review. J Multidiscip Healthc 2023; 16:101-117. [PMID: 36660039 PMCID: PMC9842522 DOI: 10.2147/jmdh.s392693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/05/2022] [Indexed: 01/13/2023] Open
Abstract
Purpose A total of 537 million suffered from diabetes mellitus in 2021, and the aging of the population will not abate this number in the future. Diabetes predisposes people to ailments and doubles the risk of COVID-19 mortality. mHealth has shown promise to help manage diabetes. The aim of this review is to objectively analyze research from the last 2.5 years to assess effectiveness where mHealth has been used as an intervention to help manage diabetes in older patients. We also analyzed patient satisfaction, quality, and barriers to adoption of mHealth to manage diabetes. Patients and Methods No human subjects were involved in this review. We queried four research databases for mHealth to manage diabetes in older adults. We conducted the review based on the Kruse Protocol for writing as systematic review and we reported our findings in accordance with PRISMA (2020). Results Thirty research articles from 11 countries were analyzed. Five interventions of mHealth were identified. Of these mHealth Short Message service (SMS) helped change behavior and encouraged self-care. mHealth SMS coupled with telemedicine for coaching showed positive effects on weight loss, BMI, diet, exercise, HbA1C, disease awareness, blood pressure, cholesterol, medication adherence, and foot care. Conclusion mHealth SMS coupled with telemedicine for coaching shows the greatest promise for educating, changing behavior, and realizing positive outcomes across a broad spectrum of health factors. The largest drawback is the cost of acquiring equipment and training users.
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Affiliation(s)
- Clemens Scott Kruse
- School of Health Administration, Texas State University, San Marcos, TX, USA
| | - Michael Mileski
- School of Health Administration, Texas State University, San Marcos, TX, USA,Correspondence: Michael Mileski, Texas State University, School of Health Administration, 601 University Drive, Encino Hall—250, San Marcos, TX, 78666, USA, Tel +1 512 245 3556, Email
| | - Katharine Heinemann
- School of Health Administration, Texas State University, San Marcos, TX, USA
| | - Hung Huynh
- School of Health Administration, Texas State University, San Marcos, TX, USA
| | - Abigail Leafblad
- School of Health Administration, Texas State University, San Marcos, TX, USA
| | - Emmanuel Moreno
- School of Health Administration, Texas State University, San Marcos, TX, USA
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Donovan G, Hall N, Ling J, Smith F, Wilkes S. Influencing medication taking behaviors using automated two-way digital communication: A narrative synthesis systematic review informed by the Behavior Change Wheel. Br J Health Psychol 2022; 27:861-890. [PMID: 35080811 PMCID: PMC9541766 DOI: 10.1111/bjhp.12580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/28/2021] [Accepted: 12/21/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE Around half of prescribed medications for long-term conditions are not taken as directed. Automated two-way digital communication, such as text messaging and interactive voice response technology, could deliver interventions to improve medication adherence, and subsequently health. However, exploration of how such interventions may improve medication adherence is limited. This review aimed to explore how automated two-way digital communication can improve medication taking with or without using non-digital intervention components, such as phone calls with healthcare professionals. METHODS A theory-informed narrative synthesis systematic review. Several databases were searched including CINAHL, Embase, Medline, and Web of Science using key words relating to 'medication adherence' and digital communication technologies. The Behavior Change Technique (BCT) coding using the BCT Taxonomy V1 and the Behavior Change Wheel were used to identify BCTs delivered within the included interventions. RESULTS A total of 3,018 records were screened with 43 study reports included in the review. Four medication-taking behaviors: taking medication, obtaining medication, self-testing, and asking for support were identified as targets for behavior change within the included interventions. Most BCTs within the digital communication component aimed to increase motivation for medication adherence, with non-digital intervention components included to address other medication taking barriers, such as physical and psychological capability. CONCLUSION Automated two-way digital communication can detect barriers to medication adherence by monitoring performance of the taking medication behavior. Monitoring outcomes from taking medication may increase reflective motivation to take medicines. Addressing physical opportunity to taking medication by facilitating the behavior obtaining medication may also increase adherence.
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Affiliation(s)
- Gemma Donovan
- Faculty of Health Sciences and WellbeingSchool of Pharmacy and Pharmaceutical SciencesUniversity of SunderlandUK
| | - Nicola Hall
- Faculty of Medical SciencesPopulation Health Sciences InstituteNewcastle UniversityUK
| | - Jonathan Ling
- Faculty of Health Sciences and WellbeingUniversity of SunderlandUK
| | | | - Scott Wilkes
- Faculty of Health Sciences and WellbeingSchool of MedicineUniversity of SunderlandUK
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8
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Roddy MK, Mayberry LS, Nair D, Cavanaugh KL. Exploring mHealth potential to improve kidney function: secondary analysis of a randomized trial of diabetes self-care in diverse adults. BMC Nephrol 2022; 23:280. [PMID: 35948873 PMCID: PMC9364602 DOI: 10.1186/s12882-022-02885-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/24/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Many individuals living with chronic kidney disease (CKD) have comorbid Type 2 diabetes (T2D). We sought to explore if efficacious interventions that improve glycemic control may also have potential to reduce CKD progression. METHODS REACH is a text message-delivered self-management support intervention, which focused on medication adherence, diet, and exercise that significantly improved glycemic control in N = 506 patients with T2D. Using data from the trial, we characterized kidney health in the full sample and explored the intervention's effect on change in estimated glomerular filtration rate (eGFR) at 12 months in a subsample of N=271 patients with eGFR data. RESULTS In a diverse sample with respect to race/ethnicity and socioeconomic status, 37.2% had presence of mild or heavy proteinuria and/or an eGFR < 60 mL/min/1.73 m2. There was a trending interaction effect between intervention and presence of proteinuria at baseline (b = 6.016, p = .099) such that patients with proteinuria at baseline who received REACH had less worsening of eGFR. CONCLUSIONS Future research should examine whether diabetes directed self-management support reduces CKD progression in ethnically diverse individuals with albuminuria. In highly comorbid populations, such as T2D and CKD, text-based support can be further tailored according to individuals' multimorbid disease self-management needs and is readily scalable for individuals with limited resources. TRIAL REGISTRATION This study was registered with ClinicalTrials.gov ( NCT02409329 ).
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Affiliation(s)
- McKenzie K Roddy
- Quality Scholars, VA Tennessee Valley Healthcare System, Nashville, TN, USA
| | - Lindsay S Mayberry
- Division of General Internal Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Devika Nair
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kerri L Cavanaugh
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
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9
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Mandal S, Belli H, Cruz J, Mann D, Schoenthaler A. Analyzing user engagement within a patient-reported outcomes texting tool for diabetes management (Preprint). JMIR Diabetes 2022; 7:e41140. [DOI: 10.2196/41140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
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10
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Peacock E, Craig LS, Krousel-Wood M. Electronic health strategies to improve medication adherence in patients with cardiometabolic disease: current status and future directions. Curr Opin Cardiol 2022; 37:307-316. [PMID: 35731675 PMCID: PMC9228772 DOI: 10.1097/hco.0000000000000971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Enabled by widespread technological advancements, electronic health (eHealth) strategies have expanded rapidly over the last decade, presenting opportunities to support self-management including medication adherence for cardiometabolic disease control. eHealth can minimize access barriers to medications, enable timely assessment and shared decision-making, and provide medication reminders and health data feedback. This review summarizes current evidence for effectiveness of eHealth strategies for improving medication adherence in patients with hypertension, type 2 diabetes, and/or hyperlipidemia, and identifies priorities for future research. RECENT FINDINGS Current research supports the effectiveness of eHealth strategies to improve medication adherence and clinical outcomes for cardiometabolic disease. Although patient acceptability of eHealth strategies is generally high, engagement may decline over time. In addition, differences in effectiveness across intervention characteristics and sociodemographic groups are understudied, limiting generalizability and tailoring of interventions to local health system resources, culture, and patient needs or preferences. SUMMARY eHealth is a promising tool for addressing low medication adherence. Further work incorporating rigorous evaluation, assessment of patient engagement over time and effectiveness of intervention characteristics and components, and a health equity lens addressing eHealth use in vulnerable groups will increase understanding of the full potential of eHealth for improving medication adherence in diverse patients with cardiometabolic disease.
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Affiliation(s)
- Erin Peacock
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana
| | - Leslie S. Craig
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana
| | - Marie Krousel-Wood
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
- Center for Outcomes and Health Services Research, Ochsner Health System, New Orleans, Louisiana
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Nelson LA, Spieker AJ, Kripalani S, Rothman RL, Roumie CL, Coco J, Fabbri D, Levy P, Collins SP, McNaughton CD. User preferences for and engagement with text messages to support antihypertensive medication adherence: Findings from a pilot study evaluating an emergency department-based behavioral intervention. PATIENT EDUCATION AND COUNSELING 2022; 105:1606-1613. [PMID: 34690012 PMCID: PMC9001748 DOI: 10.1016/j.pec.2021.10.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 07/22/2021] [Accepted: 10/08/2021] [Indexed: 05/07/2023]
Abstract
OBJECTIVE We examined users' preferences for and engagement with text messages delivered as part of an emergency department (ED)-based intervention to improve antihypertensive medication adherence. METHODS We recruited ED patients with elevated blood pressure for a pilot randomized trial evaluating a medication adherence intervention with text messages. Intervention participants chose text content and frequency, received texts for 45 days, and completed a feedback survey. We defined engagement via responses to texts. We examined participant characteristics associated with text preferences, engagement, and feedback. RESULTS Participants (N = 101) were 57% female and 46% non-White. Most participants (71%) chose to receive both reminder and informational texts; 94% chose reminder texts once per day and 97% chose informational texts three times per week. Median text message response rate was 56% (IQR 26-80%). Participants who were Black (p < 0.01), had lower income (p = 0.03), or had lower medication adherence (p < 0.01) rated the program as more helpful and wanted additional functionalities for adherence support. CONCLUSIONS AND PRACTICE IMPLICATIONS While overall engagement was modest, participants at risk of worse health outcomes expressed more value and interest in the program. Findings inform the design of text messaging interventions for antihypertensive medication adherence and support targeting vulnerable patients to reduce health disparities. CLINICAL TRIALS REGISTRATION NCT02672787.
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Affiliation(s)
- Lyndsay A Nelson
- Department of Medicine, Vanderbilt University Medical Center, Nashville, USA; Center for Health Behavior and Health Education, Vanderbilt University Medical Center, Nashville, USA.
| | - Andrew J Spieker
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, USA
| | - Sunil Kripalani
- Department of Medicine, Vanderbilt University Medical Center, Nashville, USA; Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, USA
| | - Russell L Rothman
- Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, USA
| | - Christianne L Roumie
- Department of Medicine, Vanderbilt University Medical Center, Nashville, USA; Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, USA; Geriatric Research Education Clinical Center, Tennessee Valley Healthcare System VA Medical Center, Nashville, USA
| | - Joseph Coco
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, USA
| | - Daniel Fabbri
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, USA
| | - Phillip Levy
- Department of Emergency Medicine, Wayne State University, Detroit, USA
| | - Sean P Collins
- Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, USA; Geriatric Research Education Clinical Center, Tennessee Valley Healthcare System VA Medical Center, Nashville, USA
| | - Candace D McNaughton
- Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, USA; Geriatric Research Education Clinical Center, Tennessee Valley Healthcare System VA Medical Center, Nashville, USA
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12
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Ford KL, West AB, Bucher A, Osborn CY. Personalized Digital Health Communications to Increase COVID-19 Vaccination in Underserved Populations: A Double Diamond Approach to Behavioral Design. Front Digit Health 2022; 4:831093. [PMID: 35493533 PMCID: PMC9051039 DOI: 10.3389/fdgth.2022.831093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/25/2022] [Indexed: 12/14/2022] Open
Abstract
The COVID-19 pandemic exacerbated pre-existing health disparities. People of historically underserved communities, including racial and ethnic minority groups and people with lower incomes and educational attainments, experienced disproportionate premature mortality, access to healthcare, and vaccination acceptance and adoption. At the same time, the pandemic increased reliance on digital devices, offering a unique opportunity to leverage digital communication channels to address health inequities, particularly related to COVID-19 vaccination. We offer a real-world, systematic approach to designing personalized behavior change email and text messaging interventions that address individual barriers with evidence-based behavioral science inclusive of underserved populations. Integrating design processes such as the Double Diamond model with evidence-based behavioral science intervention development offers a unique opportunity to create equitable interventions. Further, leveraging behavior change artificial intelligence (AI) capabilities allows for both personalizing and automating that personalization to address barriers to COVID-19 vaccination at scale. The result is an intervention whose broad component library meets the needs of a diverse population and whose technology can deliver the right components for each individual.
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Oser TK, Cucuzzella M, Stasinopoulos M, Moncrief M, McCall AL, Cox DJ. An Innovative Lifestyle Intervention to Reduce Glucose Excursions with the Use of Continuous Glucose Monitoring to Educate, Motivate, and Activate Adults with Newly Diagnosed Type 2 Diabetes: A Paradigm shift. JMIR Diabetes 2022; 7:e34465. [PMID: 35050857 PMCID: PMC8908197 DOI: 10.2196/34465] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/17/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background Type 2 diabetes (T2D) is a growing epidemic in the United States, and metabolic control has not been improved over the last 10 years. Glycemic excursion minimization (GEM) is an alternative lifestyle treatment option focused on reducing postnutrient glucose excursions rather than reducing weight. GEM has been proven to be superior to routine care when delivered face to face, and equivalent or superior to conventional weight loss therapy, but it has not been evaluated among patients newly diagnosed with T2D or in a self-administered format. Objective This pilot study evaluated the feasibility of a self-administered version of GEM, augmented with continuous glucose monitoring (CGM), to improve metabolic control (hemoglobin A1c [HbA1c]) while diminishing or delaying the need for diabetes medications in adults recently diagnosed with T2D. These primary objectives were hypothesized to be achieved by reducing carbohydrate intake and increasing physical activity to diminish CGM glucose excursions, leading to the secondary benefits of an increase in diabetes empowerment and reduced diabetes distress, depressive symptoms, and BMI. Methods GEM was self-administered by 17 adults recently diagnosed with T2D (mean age 52 years, SD 11.6 years; mean T2D duration 3.9 months, SD 2.5 months; mean HbA1c levels 8.0%, SD 1.6%; 40% female; 33.3% non-White), with the aid of a 4-chapter pocket guide and diary, automated motivational text messaging, and feedback from an activity monitor, along with CGM and supplies for the 6-week intervention and the 3-month follow-up. Treatment was initiated with one telephone call reviewing the use of the technology and 3 days later with a second call reviewing the use of the GEM pocket guide and intervention. Results At 3-month follow-up, 67% of the participants’ diabetes was in remission (HbA1c levels <6.5%), and only one participant started taking diabetes medication. Participants demonstrated a significant reduction in HbA1c levels (–1.8%; P<.001). Participants also experienced significant reductions in high-glycemic-load carbohydrates routinely consumed, CGM readings that were >140 mg/dL, diabetes distress, depressive symptoms, and BMI. Participants felt that use of the CGM was the most significant single element of the intervention. Conclusions GEM augmented with CGM feedback may be an effective initial intervention for adults newly diagnosed with T2D. A self-administered version of GEM may provide primary care physicians and patients with a new tool to help people recently diagnosed with T2D achieve remission independent of medication and without weight loss as the primary focus. Future research is needed with a larger and more diverse sample.
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Affiliation(s)
- Tamara K Oser
- Department of Family Medicine, University of Colorado School of Medicine, 12631 East 17th Avenue F496Academic Office One, Aurora, US
| | - Mark Cucuzzella
- Department of Family Medicine, West Virginia University School of Medicine, Morgantown, US
| | - Marilyn Stasinopoulos
- Department of Family Medicine, University of Colorado School of Medicine, 12631 East 17th Avenue F496Academic Office One, Aurora, US
| | - Matt Moncrief
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, US
| | - Anthony L McCall
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, US
| | - Daniel J Cox
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia School of Medicine, Charlottesville, US
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Abstract
OBJECTIVE The purpose of this literature review was to identify educational approaches addressing low health literacy for people with type 2 diabetes. Low health literacy can lead to poor management of diabetes, low engagement with health care providers, increased hospitalization rates, and higher health care costs. These challenges can be even more profound among minority populations and non-English speakers in the United States. METHODS A literature search and standard data extraction were performed using PubMed, Medline, and EMBASE databases. A total of 1,914 articles were identified, of which 1,858 were excluded based on the inclusion criteria, and 46 were excluded because of a lack of relevance to both diabetes management and health literacy. The remaining 10 articles were reviewed in detail. RESULTS Patients, including ethnic minorities and non-English speakers, who are engaged in diabetes education and health literacy improvement initiatives and ongoing follow-up showed significant improvement in A1C, medication adherence, medication knowledge, and treatment satisfaction. Clinicians considering implementing new interventions to address diabetes care for patients with low health literacy can use culturally tailored approaches, consider ways to create materials for different learning styles and in different languages, engage community health workers and pharmacists to help with patient education, use patient-centered medication labels, and engage instructors who share cultural and linguistic similarities with patients to provide educational sessions. CONCLUSION This literature review identified a variety of interventions that had a positive impact on provider-patient communication, medication adherence, and glycemic control by promoting diabetes self-management through educational efforts to address low health literacy.
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15
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He Q, Zhao X, Wang Y, Xie Q, Cheng L. Effectiveness of smartphone application-based self-management interventions in patients with type 2 diabetes: A systematic review and meta-analysis of randomized controlled trials. J Adv Nurs 2021; 78:348-362. [PMID: 34324218 DOI: 10.1111/jan.14993] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/24/2021] [Accepted: 07/11/2021] [Indexed: 01/09/2023]
Abstract
AIMS To synthesize evidences on smartphone application-based intervention and determine its effectiveness on glycaemic control, self-management behaviours, psychological well-being, quality of life and cardiometabolic risk factors. DESIGN A systematic review and meta-analysis of randomized controlled trials (RCTs). DATA SOURCES Major English and Chinese electronic databases were searched from January 2008 to January 2021, including PubMed, Web of Science, Embase, Cochrane Central Register of Controlled Trials, Google Scholar, China National Knowledge Infrastructure (CNKI), Wanfang and Sinomed. REVIEW METHODS RCTs were screened and selected if they used smartphone applications to support patients in the self-management of diabetes. Data extraction and methodological assessment were performed by two reviewers independently. Meta-analysis was performed to pool the intervention effect on outcomes of interest using RevMan 5.3. RESULTS Across 19 included trials involving 2585 participants, smartphone application-based interventions were associated with a clinically and statistically significant reduction of glycated haemoglobin (HbA1c). Beneficial effects were also observed in participants' behavioural performance, especially in medication adherence. Intervention effects on psychological status, quality of life and cardiometabolic risk factors were nonsignificant. Subgroup analysis showed interactive approach with medium frequency or flexible facilitator-patient interaction induced a larger effect on HbA1c reduction. Besides, patients with baseline HbA1c ≥9% benefited more than those with HbA1c <9% from the use of smartphone applications. CONCLUSIONS Smartphone application-based diabetes self-management intervention could optimize patients' glycaemic control and enhance participants' self-management performance. Further endeavour is required to examine the long-term effects and cost-effectiveness of smartphone application-based intervention before promoting the adoption and dissemination of such intervention. IMPACT This review supports the potential of smartphone application-based intervention as effective approach to optimize glycaemic control and promote self-management engagement among patients with type 2 diabetes. Suggestions for future research and practice are provided and discussed.
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Affiliation(s)
- Qianyu He
- School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaoyan Zhao
- School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yarui Wang
- School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qinqin Xie
- School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Li Cheng
- School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
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16
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Fundoiano-Hershcovitz Y, Hirsch A, Dar S, Feniger E, Goldstein P. Role of Digital Engagement in Diabetes Care Beyond Measurement: Retrospective Cohort Study. JMIR Diabetes 2021; 6:e24030. [PMID: 33599618 PMCID: PMC7932839 DOI: 10.2196/24030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/16/2020] [Accepted: 01/20/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND The use of remote data capture for monitoring blood glucose and supporting digital apps is becoming the norm in diabetes care. One common goal of such apps is to increase user awareness and engagement with their day-to-day health-related behaviors (digital engagement) in order to improve diabetes outcomes. However, we lack a deep understanding of the complicated association between digital engagement and diabetes outcomes. OBJECTIVE This study investigated the association between digital engagement (operationalized as tagging of behaviors alongside glucose measurements) and the monthly average blood glucose level in persons with type 2 diabetes during the first year of managing their diabetes with a digital chronic disease management platform. We hypothesize that during the first 6 months, blood glucose levels will drop faster and further in patients with increased digital engagement and that difference in outcomes will persist for the remainder of the year. Finally, we hypothesize that disaggregated between- and within-person variabilities in digital engagement will predict individual-level changes in blood glucose levels. METHODS This retrospective real-world analysis followed 998 people with type 2 diabetes who regularly tracked their blood glucose levels with the Dario digital therapeutics platform for chronic diseases. Subjects included "nontaggers" (users who rarely or never used app features to notice and track mealtime, food, exercise, mood, and location, n=585) and "taggers" (users who used these features, n=413) representing increased digital engagement. Within- and between-person variabilities in tagging behavior were disaggregated to reveal the association between tagging behavior and blood glucose levels. The associations between an individual's tagging behavior in a given month and the monthly average blood glucose level in the following month were analyzed for quasicausal effects. A generalized mixed piecewise statistical framework was applied throughout. RESULTS Analysis revealed significant improvement in the monthly average blood glucose level during the first 6 months (t=-10.01, P<.001), which was maintained during the following 6 months (t=-1.54, P=.12). Moreover, taggers demonstrated a significantly steeper improvement in the initial period relative to nontaggers (t=2.15, P=.03). Additional findings included a within-user quasicausal nonlinear link between tagging behavior and glucose control improvement with a 1-month lag. More specifically, increased tagging behavior in any given month resulted in a 43% improvement in glucose levels in the next month up to a person-specific average in tagging intensity (t=-11.02, P<.001). Above that within-person mean level of digital engagement, glucose levels remained stable but did not show additional improvement with increased tagging (t=0.82, P=.41). When assessed alongside within-person effects, between-person changes in tagging behavior were not associated with changes in monthly average glucose levels (t=1.30, P=.20). CONCLUSIONS This study sheds light on the source of the association between user engagement with a diabetes tracking app and the clinical condition, highlighting the importance of within-person changes versus between-person differences. Our findings underscore the need for and provide a basis for a personalized approach to digital health.
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Nelson LA, Williamson SE, Nigg A, Martinez W. Implementation of Technology-Delivered Diabetes Self-care Interventions in Clinical Care: a Narrative Review. Curr Diab Rep 2020; 20:71. [PMID: 33206241 PMCID: PMC8188808 DOI: 10.1007/s11892-020-01356-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/26/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE OF REVIEW Evidence is growing for the positive effects of technology-delivered diabetes self-care interventions on behavioral and clinical outcomes. However, our understanding of how to effectively implement these interventions into routine clinical practice is limited. This article provides an overview of the methods and results of studies examining the implementation of technology-delivered diabetes self-care interventions into clinical care. We focus specifically on patient-facing behavioral interventions delivered with technology (e.g., text messaging, apps, websites). RECENT FINDINGS Eleven articles were included in the review. Most studies (n = 9) examined barriers and facilitators to implementation, while about half (n = 5) integrated the intervention into clinical care and evaluated implementation and/or effectiveness. Only six studies applied a theory or framework. The most common determinants of implementation were time constraints for clinic staff, familiarity with technology, knowledge of the intervention, and perceived value. We found substantial variation in implementation outcomes, including which were reported, how they were assessed, and the results. In the four studies that evaluated effectiveness, hemoglobin A1c improved. Successful implementation of technology-delivered interventions has the potential to transform healthcare delivery and improve diabetes health on a population level. Promising strategies to address common determinants of implementation include appointing a clinic champion, developing staff training and educational materials, and adapting intervention processes to the clinic context. Future research should evaluate these implementation strategies to understand when and how they impact outcomes. Frameworks such as Reach Effectiveness Adoption Implementation Maintenance (RE-AIM) can help ensure outcomes are systematically reported and allow for comparison across studies.
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Affiliation(s)
- Lyndsay A Nelson
- Department of Medicine, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA.
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA.
| | - Sarah E Williamson
- Department of Medicine, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA
| | - Audriana Nigg
- Department of Medicine, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA
| | - William Martinez
- Department of Medicine, Vanderbilt University Medical Center, 2525 West End Ave. Suite 450, Nashville, TN, 37203, USA
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