Weight loss intervention for young adults using mobile technology: design and rationale of a randomized controlled trial - Cell Phone Intervention for You (CITY).
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2014-03
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BACKGROUND: The obesity epidemic has spread to young adults, leading to significant public health implications later in adulthood. Intervention in early adulthood may be an effective public health strategy for reducing the long-term health impact of the epidemic. Few weight loss trials have been conducted in young adults. It is unclear what weight loss strategies are beneficial in this population. PURPOSE: To describe the design and rationale of the NHLBI-sponsored Cell Phone Intervention for You (CITY) study, which is a single center, randomized three-arm trial that compares the impact on weight loss of 1) a behavioral intervention that is delivered almost entirely via cell phone technology (Cell Phone group); and 2) a behavioral intervention delivered mainly through monthly personal coaching calls enhanced by self-monitoring via cell phone (Personal Coaching group), each compared to 3) a usual care, advice-only control condition. METHODS: A total of 365 community-dwelling overweight/obese adults aged 18-35 years were randomized to receive one of these three interventions for 24 months in parallel group design. Study personnel assessing outcomes were blinded to group assignment. The primary outcome is weight change at 24 [corrected] months. We hypothesize that each active intervention will cause more weight loss than the usual care condition. Study completion is anticipated in 2014. CONCLUSIONS: If effective, implementation of the CITY interventions could mitigate the alarming rates of obesity in young adults through promotion of weight loss. ClinicalTrial.gov: NCT01092364.
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Batch, Bryan C, Crystal Tyson, Jacqueline Bagwell, Leonor Corsino, Stephen Intille, Pao-Hwa Lin, Tony Lazenka, Gary Bennett, et al. (2014). Weight loss intervention for young adults using mobile technology: design and rationale of a randomized controlled trial - Cell Phone Intervention for You (CITY). Contemp Clin Trials, 37(2). pp. 333–341. 10.1016/j.cct.2014.01.003 Retrieved from https://hdl.handle.net/10161/10732.
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Scholars@Duke
Bryan Courtney Batch
Type 2 Diabetes, Obesity/Overweight, Behavior change, Non-pharmacologic intervention, Health disparities
Crystal Cenell Tyson
As a board-certified nephrologist and a certified clinical hypertension specialist (ASH-SCH), I take care of patients with kidney disorders and/or high blood pressure. Patients with chronic kidney disease and high blood pressure have an increased risk for developing complications of cardiovascular disease, such as heart attacks, congestive heart failure, strokes, kidney failure requiring dialysis or a kidney transplant, and a shortened lifespan. My clinical focus is to slow the progression of chronic kidney disease and reduce complications from cardiovascular disease with lifestyle modification. I particularly enjoy treating patients with severe or difficult to control high blood pressure by focusing on finding an effective medication regimen that provides the least side effects, eliminating ineffective medications, simplifying medication schedules, and promoting healthy lifestyle behavior. I see patients 2 days per week in the Duke Nephrology Clinic and the Duke Nephrology Hypertension Clinic.
My research interests are to reduce racial and health disparities among patients with hypertension and chronic kidney disease using lifestyle modifications. My past and current research investigates the effects of diet (i.e., the DASH diet, sodium reduction), exercise, and weight loss on blood pressure and kidney function, as well as the effect of bilateral renal artery denervation on blood pressure.
Leonor Corsino
Dr. Leonor Corsino is a Board- Certified Adult Endocrinologist, an experienced physician-scientist, and an organizational and health professional education leader. She offers an extensive and diverse leadership background with successfully implementing innovative clinical, research, and workforce development and education programs. Her expertise and strengths lie in her diverse portfolio that expands from basic science to clinical and community-engaged research, innovative curriculum development, successful clinical program implementation, and collaborations.
Dr. Corsino's research focuses on diabetes, obesity, and related complications and health disparities, with a particular interest in Hispanic/Latino populations. She has successfully led and extensively collaborated with investigators locally, nationally, and internationally. Her research and contribution have been recognized locally and nationally with many awards, including the NIH/NIDDK Network of Minority Health Research Investigators medallion.
Dr. Corsino has extensive leadership experience, including her current roles as a member of the Executive Committee Member and Associate Director of the Duke School of Medicine Masters of Biomedical Sciences (MBS), Co-Director for the Duke Clinical and Translational Science Institute - Community Engagement Core / Community-Engaged Research Initiative (CERI) and Associate Dean for Students Affairs/Advisory Dean Duke School of Medicine MD program.
She is the former Co-Director, Education and Training Sub-core of the Duke Center for REsearch to AdvanCe Healthcare Equity, Director of the Duke Population Health Improvement Initiative Program, Associate Chair for the Department of Medicine Minority Recruitment and Retention Committee, and Associate Director for the Duke School of Medicine Office of Faculty Mentoring Training.
Dr. Corsino's leadership led to the successful development and implementation of unique and innovative programs, including the Duke MBS program selective curriculum, the REACH Equity Summer Undergraduate Research Program, the CTSI/CERI Population Health Improvement Award, E-library, consultation services, and the interactive platform for the Duke Population Health Improvement Program.
Her visionary and innovative initiatives have enhanced patient care, population health, and the recruitment, training, development, and support of health professions students, residents, fellows, and junior faculty, having a significant, palpable, impact on the diversity of health profession workforce and health disparities research.
Gary G. Bennett
Gary G. Bennett, Ph.D., is dean of the Trinity College of Arts & Sciences at Duke University.
As dean, Dr. Bennett is responsible for defining and articulating the strategic mission of Trinity College, ensuring a world-class liberal arts education in a research environment for all students, and attracting, retaining, and nurturing a diverse community of distinguished faculty.
Dr. Bennett is a professor of psychology & neuroscience, global health, medicine, and nursing, and is the founding director of the Duke Digital Health Science Center. He is a global leader in designing, testing, and disseminating digital behavior change interventions. Dr. Bennett developed the interactive obesity treatment approach (iOTA); his recent work demonstrates the effectiveness of digital strategies in treating obesity in the primary care setting.
Nearly 20 years ago, Dr. Bennett created one of the first digital health research programs. His laboratory has since become a global leader in designing, testing, and disseminating digital behavior change interventions, especially for medically vulnerable populations. Dr. Bennett has authored nearly 200 scientific papers, and the National Institutes of Health have continuously funded his research program with more than $20m in grant support. From 2018-2019, Dr. Bennett served as president of the Society of Behavioral Medicine, the nation's largest organization of behavioral change scientists. Dr. Bennett is an elected Academy of Behavioral Medicine Research and Behavioral Medicine Research Council member.
Before assuming his role as dean of Trinity College in February 2023, Dr. Bennett served as vice provost for undergraduate education. He provided strategic vision and leadership for Duke’s undergraduate experience. As vice provost, he oversaw the Office of Undergraduate Education, comprising 15 units that enrich Duke's undergraduate academic experience through academic advising, academic support, nationally competitive scholarships, merit scholar programs, financial aid, study abroad, and several co-curricular programs. Under Bennett’s leadership, Duke introduced several advancements to make the undergraduate experience more enriching and equitable for all students, including the DukeLIFE program to support first-generation and low-income students, and QuadEx, Duke’s inclusive living and learning model that integrates undergraduates’ social, residential and intellectual experiences.
Dr. Bennett is a member of Duke's Bass Society of Fellows and is the founding director of Duke's undergraduate major in global health. He has served on committees to examine Duke's undergraduate curriculum and develop the university's strategic plan and has co-led the Board of Trustees Undergraduate Education Committee since 2018. His students' course ratings have repeatedly placed Dr. Bennett in the top 5% of Duke's undergraduate instructors.
Dr. Bennett has also co-founded three digital health ventures. Crimson Health Solutions developed digital disease management interventions and was acquired by Health Dialog in 2007. In 2014, he co founded Scale Down, a digital obesity treatment startup based on the science of daily self-weighing. Scale Down was acquired by Anthem in 2017. He is a co-founder of Coeus Health, a leading provider of health APIs. Dr. Bennett advises leading digital health and consumer electronic organizations on the science of health behavior change.
Before joining Duke in 2009, Dr. Bennett served on the Harvard School of Public Health and the Dana-Farber Cancer Institute faculties. Dr. Bennett earned a bachelor's degree at Morehouse College, an AM and PhD in clinical health psychology at Duke University, completed a clinical internship in medical psychology at the Duke University Medical Center, and was the Alonzo Yerby postdoctoral fellow in social epidemiology at the Harvard School of Public Health.
Dr. Bennett lives in Raleigh with his wife (also a Duke alum) and his two daughters.
Steven C. Grambow
I am an academic statistician with a focus on educational leadership and administration, teaching, mentoring, and collaborative clinical research. I serve as the director of multiple education programs, both formal degree programs and certificate-based training programs. I also provide administrative oversight of multiple graduate degree programs and educational initiatives focusing on clinical and translational science workforce development at the student, staff, and faculty levels.
I have many years of experience with in-person and online teaching across a variety of teaching venues (formal degree programs, domestic and international certificate-based training programs, faculty development seminars, residency/fellowship training programs) and health sciences audiences (medical students, residents, fellows, faculty, and other health professionals), including more than 21 years as a statistics course director in the Duke Clinical Research Training Program.
As a collaborative scientist I have experience with a broad range of clinical research areas and clinical research designs, including observational studies, epidemiology investigations, and randomized clinical trials, including those utilizing web, mobile, and telemedicine-based health behavior interventions. I have collaborated on projects spanning a broad range of clinical research areas, including amyotrophic lateral sclerosis (ALS), post-traumatic stress disorder (PTSD), Prader-Willi syndrome (PWS), prostate cancer, quality of colorectal cancer care, osteoarthritis, lifestyle modification through weight loss, CVD risk reduction through hypertension control, smoking cessation, and substance abuse recovery.
Laura Pat Svetkey
Laura P. Svetkey, MD MHS is Professor of Medicine/Nephrology, Vice Chair for Faculty Development and Diversity in the Department of Medicine. She is also the Director of Duke’s CTSA-sponsored internal career development award program (KL2) and the Associate Director of Duke’s REACH Equity Disparities Research Center, in which she also leads the Investigator Development Core.
Dr. Svetkey has over 30 years of experience in the investigation of hypertension, obesity, and related areas, conducting NIH-sponsored clinical research ranging from behavioral intervention trials to metabolomics and genetics, with a consistent focus on prevention, non-pharmacologic intervention, health disparities and minority health. Her research has affected national guidelines, having served on the 2013 national Hypertension Guideline Panel (JNC) and the Lifestyle Guideline Working Group. She is an American Society of Hypertension certified hypertension specialist, and a member of the Association of American Physicians (AAP). She is the Associate Director, Core Director and Project PI of Duke’s NIH-sponsored REACH Equity Disparities Research Center (PI: Kimberly Johnson).
As Department of Medicine Vice Chair for Faculty Development and Diversity, she implements a wide range of programs to enhance the experience and advancement of faculty and trainees, with particular emphasis on those from racial and ethnic groups under-represented in medicine, and women.
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